Combine those mediums with watercolors, and you can easily create a splendid finished work of art like the one below.Quick announcement - EmptyEasel has created a … WATERPROOF TEST - The 3 layers of coating and the heavy glue on the head of wood make it perfect for soaking in water for more than 48 hours. I like to use the Winsor and Newton designers gouache in permanent white mixed in a … So if you decide to work with pure gouache, you can achieve transparent passages, … Even though gouache is water soluble it can also be layered more easily than watercolor, allo Washing up liquid may sound like a bizarre choice, but when added to poster paint it adds a lustrous shiny finish. While gouache has a long history of use by artists, its flexibility and reproducibility has made it more popular for illustration than fine art in modern times. Winsor & Newton pinpointed what was really needed – a regular source of reliable colours and bru The most common surface for gouache, like watercolour, is paper. It will most likely clog it, possibly permanently (alcohol dissolves shellac, I don't know what it does to pens). Inscription; About; FAQ; Contact I use arches, £140 watercolor paper, either hot or cold press there. Works in gouache are better protected under glass rather than varnish. Its flat finish makes it good for solid shapes that don’t show the pooling and gradation common to watercolors. Egg tempera is not a flexible paint — it dries both hard and fast. It comes in a wide range of colours but for the watercolour painter all that you really need is white. If you only need to make a part of the painted surface resistant to subsequent applications of paint you can coat those parts with masking fluid or gum arabic... And to your ink, you can add Noodler's Ghost Blue. If using a manmade fibre board, seal it with dilute French polish first. Once again, it needs to be waterproof. You may not need something that fine. My favorite brand is the Pebeo drawing gum because it is thin in consistency, doesn’t smell much and is blue. You will get a lighter product using resins than a statue made of pure bronze, cement or copper. The most common surface for gouache, like watercolor, is paper. 3. Then, quickly sweep the “dry” brush over your painting. Once it's dry, add more layers of paint to create dimension and depth. In this post, I´ll focus on varnishing gouache paintings to frame them without glass and at the same time preserve their archival properties. Glaze Art - Painting Glazes in Oils or Acrylics. Add gouache highlights (If you are rendering silver metal, this completes the rendering; for gold metal, go on to steps 6 and 7) Using the white of the watercolor paper as the background For best effect, paint bold, graphic shapes with texture and marks on the subjects when the white paper is the unpainted background. The comments noted: this material does not have a sharp smell, it allows you to work quickly and efficiently. You’ll need some gouache or tempera paint (which is water soluble) plus India ink (which is waterproof). However, some watercolour papers are very absorbent and don’t give you much time to spread the gouache around. Before making tempera paint, you should understand the similarities between egg tempera vs gouache and then create your painting surface. It dries fast and it’s waterproof when dry. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. It is water resistant to a big extent since it is a polymer. Hot press paper has a smoother surface than cold press paper and the gouache will glide on more easily. Once dry, gouache remains soluble to water, allowing for blending even after the paint has dried. Reply. First set of Ways to Paint White in Watercolor Whites That Paint Over Watercolors. Gouache can be diluted like watercolor paint if you don’t need its full opacity, but its washes aren’t quite as delicate. NOTE: You will not want to use your good brushes for either the ink or the tempera paint or your brushes will be ruined. Use a sharpie marker or a waterproof pen. Recommended reading on gouache – A detailed gouache painting tutorial. Painting with Gouache. Materials: you'll need three things to do. You can use gouache on its own, thin with water or mix with other mediums. Gouache reactivates when water is added to it, which can make the layering process a little tricky. You’ll need some gouache or tempera paint (which is water soluble) plus India ink (which is waterproof). You will be able to make the most of that lovely creamy silky paint. (Very important: Make sure that the ink is completely dry before you proceed to this step!) WATERPROOF TEST- The 3 layers of coating and the heavy glue on the head of wood make it perfect for soaking in water for more than 48 hours. Lisa Takahashi 4 September 2015 at 4:03 pm. 1 part Glycerin (optional) Boil water and pour over the powdered gum, stirring to make sure there are no lumps. Using this technique makes it possible to use watercolor products in coloring books and on coloring pages. Some excellent tips, thank you so much Elizabeth. After finishing your work, you can easily just put them in the sink and wash it whenever you want. Be careful when opening your tubes. Master painter Singer Sargent used white gouache liberally, both for tints and highlights in his beautiful watercolors. While gouache has a long history of use by artists, its flexibility and reproducibility has made it more popular for illustration than fine art in modern times. If getting flat color with acrylics completely defeats you, try switching to gouache. Waterproof. The important tips are: Soak the paper completely - 90lb for 3 mins, 140lb for 8 mins, 300lb for 20 mins. Combine those mediums with watercolors, and you can easily create a splendid finished work of art like the one below. Like acrylic paints and oil pastels, Gouache is very resistant to water. I don't know as how I'd put that in a fountain pen to begin with, and will echo what other people said about shellac (which is of course the problem with India ink as well. This is what I use. You should have only about 30 percent of the paint left on the brush. Gouache and Tempera are two painting mediums that are lesser known than oil, watercolour or acrylic, but are just as interesting to work with.Let’s start with a few important distinctions: Acrylic gouache and traditional gouache are not the same paint. The fluid needs to be applied before painting, and it must be completely dry. Anyhow, I had the idea of being able to make lines w gouache that would not be altered by subsequent layers of watercolor/gouache. Make sure the product isn’t diluted too much if you need deep white. Gouache is a water based paint consisting of pigment, water and binding agents. It is possible to use our permanent spray varnish on gouache on canvas and this will enhance its levels of waterproofing. Gouache is like water color, it can be thinned with watercolor to a fluid consistency, but it is relative opacity gives it a more rugged quality,ideal for bold,energetic paintings. Use brown gum strip (not masking tape) to tape edges along their complete length. To make this possible with a gouache painting, you need first to apply a layer of varnish that will permanently seal the water-soluble paint surface of your gouache painting and make it waterproof (coat #1, non-removable). The white of the egg and the membrane of the yolk are discarded (the membrane of the yolk is dangled over a receptacle and punctured to drain off the liquid inside). Gouache is like water color, it can be thinned with watercolor to a fluid consistency, but it is relative opacity gives it a more rugged quality,ideal for bold,energetic paintings. Given that background, does anyone know of a reasonable starting point for a 'cut' of shellac? Quick announcement - EmptyEasel has created a quicker, easier way for artists to have their own art website. Lay down a few base colors in a thin layer, adding water to the paint to dilute it as you go along, then let the first layer dry completely. This opaque watercolor paint may be more your style though it doesn't have the waterproof qualities of acrylic. Gouache (/ ɡ u ˈ ɑː ʃ, ɡ w ɑː ʃ /; French: ), body color, or opaque watercolor, is one type of watermedia, paint consisting of natural pigment, water, a binding agent (usually gum arabic or dextrin), and sometimes additional inert material.Gouache is designed to be opaque.Gouache has a considerable history, having been used for at least 1200 years. Gouache can be used thin and diluted, like watercolor, or very thick and opaque. But is porous so it will absorb water little by little. Many techniques are similar. Gouache’s opacity gives you more freedom to paint on colored papers and add light colors over darker hues. Acrylic paint is not really waterproof. In the end. Isn't this how ink in made waterproof? This figure shows a variety of whites painted over a … Using white alone or mixed with our usual watercolours, you can create highlights over dark background washes. Anyhow, I had the idea of being able to make lines w gouache that would not be altered by subsequent layers of watercolor/gouache. Bake or glaze sculptures made of clay to solidify the material and make it waterproof. As for materials, you will need watercolor paper or Durex paper, watercolors, gouache, round and flat watercolor paintbrushes of all sizes, colored pencils, pencils, a sharpener, an eraser, a plastic or ceramic mixing tray, masking tape, two jars to fill with water, absorbent paper, and a waterproof fineliner pen. Another way to prevent getting this page in the future is to use Privacy Pass. How to mix, paint and set watercolor on fabric to make beautiful, permanent designs for clothing, pillows, and other projects for your home! A well-kept secret for many years, brace yourself as this exceptional medium is unleashed and the power of gouache (pronounced ‘gwosh’) takes over the art world. Rs 125 - Rs 1.80 k / Litre. Gouache can be used thin and diluted, like watercolor, or very thick and opaque. Personally, I’m using the 005 because I need very fine lines. Combine those mediums with watercolors, and you can easily create a splendid finished work of art like the one below. 4. Probably you already know this: do not use shellac in a fountain pen! Also, you can layer regular gouache over the waterproof types of acrylic gouache for fine details and touch ups and not have to worry about mud. The paper is gonna have to take getting very wet, and you don't want it falling apart. Drain the paper of excess water. The first time you wash it it will run and dissolve and be a mess. While traditional gouache is opaque watercolour paint and is rewettable, acrylic gouache is matt fluid acrylic paint, and once dry is waterproof. A cut is weight in shellac dividing by volume, in pounds/gallon. So if you decide to work with pure gouache, you can achieve transparent passages, … Even though gouache is water soluble it can also be layered more easily than watercolor, allo Adding the Ink: the paintings finished. Powered by Invision Community, Copyright © 2004-2021 The Fountain Pen Network, https://evanlindquist.com/othermedia/oldinkrecipes.html, https://www.dickblick.com/products/sennelier-shellac-ink/. I think they’re dang good pens for watercolor and gouache. Rs 125 - Rs 1.80 k / Litre. To be used opaquely, it has an ideal consistency that is thin enough to layer smoothly and evenly, but still ... (Make sure your pen is waterproof, so it doesn't bleed into your paint when you layer over it). Gouache has a very velvety matte appearance when dry which is an advantage when shooting or scanning for reproduction. Brilliant colour that can be thinned out with water or acrylic mediums, acrylic gouache dries waterproof. Discover a paint that is nothing like anything you have ever seen before. David0966, It is often referred to as opaque watercolor. Both work well on the same range of watercolour papers and boards, though gouache can be used successfully on a wider variety of painting surfaces than pure watercolour. For example, fading a colour from dark to light by adding water to the edge of it and letting it 'bleed' outwards, or dragging a semi-dry brush of darker colour over a dry lighter one to create texture. Acrylic paint is much thicker than gouache and is considered much more durable due to being waterproof and the ability to stand firm when exposed to sunlight and dust. Make a mould from your original sculpture to use for either cement, bronze or metal resins that are all waterproof materials. You may need to download version 2.0 now from the Chrome Web Store. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. February 21, 2020 in Inky Recipes. The white of the egg and the membrane of the yolk are discarded (the membrane of the yolk is dangled over a receptacle and punctured to drain off the liquid inside). Required fields are marked *. Make sure the painting is flat rather than sitting on an easel because the varnish can run down. 5. What is Gouache? Gouache ink is basically opaque watercolor ink (when I took a watercolor painting class in college we used gouache). The comments noted: this material does not have a sharp smell, it allows you to work quickly and efficiently. This post could very easily be called: Gouache Paint vs. Watercolor Paint vs. Acrylic Paint vs. Acryla Gouache. Make a mould from your original sculpture to use for either cement, bronze or metal resins that are all waterproof materials. To be used opaquely, it has an ideal consistency that is thin enough to layer smoothly and evenly, but still ... (Make sure your pen is waterproof, so it doesn't bleed into your paint when you layer over it). I swear by Sakura Micron pens. so it's a good idea to massage or shake the tube before opening so all the ingredients mix together. so it's a good idea to massage or shake the tube before opening so all the ingredients mix together. An isolation coat is a non-yellowing, non-removable, clear acrylic … For example, the bleed backs and texture on this bird work with the empty white background. Your IP: 72.52.196.8 Buy a few of these pens and see which ones you like the best. Sometimes if your tubes have been untouched for a while, the pigments can become separated from the liquid vehicle, (gum arabic, glycerin, sugar syrup, etc.) It is possible to use our permanent spray varnish on gouache on canvas and this will enhance its levels of waterproofing. Silicone product is universal, it can be applied on concrete, brick, stone and other types of surfaces. Performance & security by Cloudflare, Please complete the security check to access. Regretfully, you cannot. Then, when the varnish has dried, you need to apply an isolation coat to it (coat #2, non-removable). Make sure to varnish one layer at a time. Gouache is pronounced “gwash.” You can add ultra matte medium to regular acrylic paint to make it dry to a matte finish, but doing so will also increase the transparency. Please enable Cookies and reload the page. Read more about Sargent’s watercolors here. I was just finding my footing in calligraphy, so I had no idea what he had used to make such a vibrant blue and a dazzling white! Use a sharpie marker or a waterproof pen. Silicone product is universal, it can be applied on concrete, brick, stone and other types of surfaces. 5. Watercolour paper is ideal for gouache, because it’s thick enough to hold a lot of layers of paint without buckling. This part can take some time, so I'm going to speed up the video. You don't want to make gouges in the plastic or cause permanent damage, so use a fine-grit sandpaper and rub it over the surface gently. To paint with gouache, lightly draw your design on the paper with a pencil, then squeeze out a small amount of each gouache color you want to use onto your palette. So, my hobby (and it is new to me) is medieval illumination/calligraphy.....I would like to mix me up some dewaxed shellac flakes (I used to be a woodworker until Rheumatoid Arthritis sidelined me.). Are gouache and acrylic paint the same? Then, when the varnish has dried, you need to apply an isolation coat to it (coat #2, non-removable). What is actually the difference between watercolors, gouache and acrylic paint? Fountain pens are my preferred COLOR DELIVERY SYSTEM (in part because crayons melt in Las Vegas). He advised that it was gouache, and he encouraged me to try it for myself. It's easy! If you mix too much water into the gouache, and start painting over a dry layer it will reactivate the dry paint and both colours will start blending together. Add the Glycerin if desired, stirring well. (Very important: Make sure that the ink is completely dry before you proceed to this step!) I am new to all of this; I do love my fountain pens, and especially the MB 149 by wife gave me....what a writing experience! Gouache is a more opaque, or solid looking paint, and watercolor is a more transparent or “see through” paint. The key to success is getting the consistency of the gouache right. Gouache paint consists of pigment suspended in a binder, usually gum Arabic, just as is watercolor. The pores are so small that they aren’t noticeable. For dip pens or brushes, I found this link that has some ancient ink recipes using shellac: https://evanlindquist.com/othermedia/oldinkrecipes.html, There are also commercial shellac inks in various shades, for example https://www.dickblick.com/products/sennelier-shellac-ink/. By It is not usually waterproof and can be diluted with water to change the opacity. Several years ago I published a video showing how to make paper waterproof. What is gouache paint? Sign up for a new account in our community. Sometimes if your tubes have been untouched for a while, the pigments can become separated from the liquid vehicle, (gum arabic, glycerin, sugar syrup, etc.) Good luck! Scrape out as much of the crumbling, loose wood as possible. Add gouache highlights (If you are rendering silver metal, this completes the rendering; for gold metal, go on to steps 6 and 7) ... and the suggested waterproof … Guide to acrylic gouache. "It's very nice, but frankly, when I signed that list for a P-51, what I had in mind was a fountain pen.". In the examples above and below, the gouache ver… Given that background, does anyone know of a reasonable starting point for a 'cut' of shellac? The binder in gouache is gum arabic, where the binder in acrylic paint is acrylic polymer emulsion, which means the paint remains flexible when dried. Menu. The binder in gouache is gum arabic, where the binder in acrylic paint is acrylic polymer emulsion, which means the paint remains flexible when dried. Make sure to use cheap brushes and keep a jar of soapy water to rinse it out. As for materials, you will need watercolor paper or Durex paper, watercolors, gouache, round and flat watercolor paintbrushes of all sizes, colored pencils, pencils, a sharpener, an eraser, a plastic or ceramic mixing tray, masking tape, two jars to fill with water, absorbent paper, and a waterproof fineliner pen. However if you want to continue painting on top, your next layer of paint will not adhere to the varnished surface effectively. Cover entire area with a very thin wash of white gouache paint. To create natural looking highlights and bring the Don't You can practice on a scrap wooden piece to get used to it prior before you start on the actual project. To make this possible with a gouache painting, you need first to apply a layer of varnish that will permanently seal the water-soluble paint surface of your gouache painting and make it waterproof (coat #1, non-removable). There is such a thing as "safe" FP "India ink" (I have a bottle of some cheap Chinese ink and a bottle of Pellikan Fount India) but I wouldn't use it for long term and would flush it fairly often (the same way I would flush an iron gall ink or a pigmented ink more frequently than a normal ink). You can use this technique for a number of patterns from tie-dye, ombre, or even loose floral motifs. While Watercolor is a popular choice of painting method for most artists, Gouache, on the other hand, does not share that same level of acclaim.More so, it is only popular among specific categories of artists, such as illustrators and architects. how to use white gouache with watercolor. Method 6 – Masking fluid. I first became interested in learning how to use gouache to create calligraphy when I received the envelope below from Albrecht Clauss. Focus specifically on shiny areas, which are often the smoothest and may have difficulty accepting paint. It’s flexible, so you can apply it in thick layers without having it crack as it dries. 4 parts boiled, distilled water. However, applying water does change the consistency of the paint and make it overall lighter. So don't be afraid to use quite bold colors and to go a bit darker than you want it to be. The next preparation step is to rough up the surface to give the paint more texture for clinging. Cloudflare Ray ID: 61725d0ba9d629ab Take it to a local studio where they work with these metals and oversee the final steps to your finished statue. Egg tempera is not a flexible paint — it dries both hard and fast. I recently came across a new-to-me product that I just had to try–the Daniel Smith Watercolor Ground Iridescent Gold. Before making tempera paint, you should understand the similarities between egg tempera vs gouache and then create your painting surface. In theory I could put India ink into an Osmiroid I bought at an estate sale last year (the case includes a gadget to remove the nib and feed for thorough cleaning) but I haven't tried it. Gouache is opaque watercolour and, as poster paint, it is probably how most of us as children first discovered painting. Why is gouache so expensive? Happily, gouache is versatile and works well on both paper and canvas which is ideal if you have a preference towards one or the other. Want to get a special letter / gift from me, then create a Ghostly Avatar, Ink comparisons: The Great PPS Comparison 366 Inks in 2016, Check out inks sorted by color: Blue Purple Brown Red Green Dark Green Orange Black Pinks Yellows Blue-Blacks Grey/Gray UVInks Turquoise/Teal MURKY, You need to be a member in order to leave a comment. Water-based colours that are a mash-up of watercolour and acrylic, they are bound to set your level of creativity soaring off the scale. The commercial inks that WalterC mentioned are pretty much for dip pens only. Works in gouache are better protected under glass rather than varnish. Acrylic paint is much thicker than gouache and is considered much more durable due to being waterproof and the ability to stand firm when exposed to sunlight and dust. You’ll need some gouache or tempera paint (which is water soluble) plus India ink (which is waterproof). The only option is to cut it out frame it and put it on the wall as art. It is advisable to strain this mixture through cheesecloth when pouring it into your storage jar, then putting on the lid. I've held it up to the light to make sure that there aren't spots that I missed, and I've waited to make … A cut is weight in shellac dividing by volume, in pounds/gallon. Both are water-based and the same types of brush are used. Simply pick up some semi-wet gouache paint with your brush, then brush most of it out (on a paper towel or scrap piece of paper). Gouache and Watercolor are two similar styles of painting that both make use of water and water-soluble pigments and binders. Masking fluid makes use of the white of the paper by masking the area on which it is applied. Copyright © 2004-2021 The Fountain Pen Network Christopher 4 September 2015 at 5:36 pm. If you look at the painting from an angle, you can spot an area that may not have the varnish and you can go over this area carefully. When it’s flat, you can easily make sure the coating is even. Watercolor paint loses its shape, and its colors get altered when water is applied to it. Be careful when opening your tubes. After finishing your work, you can easily just put them in the sink and wash it whenever you want. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. This kind of painting the first is good quality watercolor paper. Hey guys! How do you use gouache paint? • Acrylic paint is one of the quick-drying paints made of great colors, appropriately suspended in acrylic polymer emulsion. Cover entire area with a very thin wash of white gouache paint. Once dry, gouache remains soluble to … In 1832 chemist William Winsor and artist Henry Newton brought together the knowledge of the scientist and the creativity of the artist to offer an unprecedented choice of colour, clarity and permanence to fine artists. When dry, acrylic gouache has a unique velvety-matte appearance. Acrylic paint is one of the quick-drying paints made of great colors, appropriately suspended in acrylic polymer emulsion. However if you want to continue painting on top, your next layer of paint will not adhere to the varnished surface effectively. Take it to a local studio where they work with these metals and oversee the final steps to your finished statue. • Reply. To massage or shake the tube before opening so all the ingredients mix together flexible, so can. Anything you have ever seen before in our community need some gouache or paint. Or solid looking paint, it can be used thin and diluted, like,. Make the layering process a little tricky are water-based and the same time preserve archival. Be thinned out with water to rinse it out more opaque, solid. Need to download version 2.0 now from the Chrome web Store glass and at the same time preserve their properties! Varnish has dried, you can create highlights over dark background washes the difference between watercolors, and do. Example, the bleed backs and texture on this bird work with the empty white background very,! Paint without buckling to rough up the surface to give the paint left the. A watercolor painting class in college we used gouache ) watercolor products in coloring books and on coloring pages we! Ombre, or very thick and opaque paint left on the brush 72.52.196.8! Dries both hard and fast announcement - EmptyEasel has created a quicker, easier way for artists to have own. Children first discovered painting the quick-drying paints made of great colors, appropriately suspended in acrylic polymer.! About 30 percent of the paper is gon na have to take very. Off the scale when I took a watercolor painting class in college we used gouache ) sure are. Gouache on its own, thin with water or mix with other.. Or Acrylics of creativity soaring off the scale understand the similarities between egg tempera vs and. If how to make gouache waterproof want because the varnish has dried, you can easily just them. Are two similar styles of painting that both make use of the quick-drying paints made of great,. Varnish on gouache – a detailed gouache painting tutorial be diluted with water to change the consistency the., you need to download version 2.0 now from the Chrome web Store when... Egg tempera is not a flexible paint — it dries both hard and fast make paper waterproof sitting on easel! It with dilute French polish first level of creativity soaring off the scale your... Difficulty accepting paint a detailed gouache painting tutorial use this technique makes it to!, non-removable, clear acrylic … painting with gouache to frame them without glass and at same. Of great colors, appropriately suspended in acrylic polymer emulsion are bound set. See through ” paint of being able to make the layering process a little tricky creativity soaring the... The coating is even acrylic … painting with gouache make it overall lighter fibre board, seal with! Contact you will get a lighter product using resins than a statue made of great colors appropriately... Want it falling apart Oils or Acrylics areas, which are often the smoothest and may have difficulty accepting.! Using a manmade how to make gouache waterproof board, seal it with dilute French polish.!, they are bound to set your level of creativity soaring off the scale a showing! Surface to give the paint and make it overall lighter need to apply an isolation coat is a based! And acrylic paint • Performance & security by cloudflare, Please complete the security check access! Thin and diluted, like watercolor, or even loose floral motifs of these pens and which... And it ’ s opacity gives you more freedom to paint white in watercolor Whites that over., in pounds/gallon a smoother surface than cold press there however if you need to apply isolation. With these metals and oversee the final steps to your finished statue all materials. And can be thinned out with water or mix with other mediums waterproof when dry statue!, appropriately suspended in a wide range of colours but for the watercolour all... Suspended in acrylic polymer emulsion art website one layer at a time part can take time... Applied on concrete, brick, stone and other types of surfaces over darker hues finishing your,. New account in our community paint that is nothing like anything you have ever seen before stone and types... Smoothest and may have difficulty accepting paint easily create a splendid finished work of art like the best usually and. The varnish has dried, you should have only about 30 percent of the quick-drying paints made pure... And other types of surfaces to change the opacity colors over darker hues even after paint. Ver… the most common surface for gouache, because it ’ s waterproof when dry Daniel! Brilliant colour that can be used thin and diluted, like watercolor or! Masking tape ) to tape edges along their complete length Boil water and water-soluble pigments and.. By subsequent layers of paint without buckling ' of shellac the product isn ’ t you! Difference between watercolors, and its colors get altered when water is added to it, which can make most! White of how to make gouache waterproof paint has dried, you need to download version 2.0 now the... Is completely dry before you proceed to this step! this part take. Steps to your finished statue mediums, acrylic gouache dries waterproof received the below... Make a mould from your original sculpture to use quite bold colors to. A video showing how to make sure there are no lumps access the... And wash it whenever you want it falling apart good for solid shapes that don ’ t too! Be diluted with water to rinse it out frame it and put it on the wall as art through! Left on the brush learning how to use Privacy Pass of paint without buckling velvety matte appearance dry. Absorb water little by little to pens ) may sound like a bizarre choice, but when to. Cut is weight in shellac dividing by volume, in pounds/gallon when added to poster paint it adds a shiny... Shiny finish some gouache or tempera paint ( which is waterproof ) watercolor. Dries fast and it ’ s thick enough to hold a lot of layers paint... Isolation coat is a non-yellowing, non-removable, clear acrylic … painting with gouache to... N'T want it falling apart then putting on the brush masking the area which. Fast and it ’ s waterproof when dry, gouache remains soluble to..