{"title":"Painting Mediums","description":"\u003cp\u003eExplore painting mediums and surface preparation materials from Amsterdam, Tri-Art, Gamblin, and Winsor \u0026amp; Newton. Find ways to adjust paint flow, texture, transparency, working time, and finish for acrylic and oil painting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGel, polymer, and pouring mediums to adjust body and flow\u003c\/li\u003e\n\u003cli\u003eGlazing and retarder mediums for layered techniques and extended working time\u003c\/li\u003e\n\u003cli\u003eModeling pastes, gesso, and grounds to prepare surfaces and build texture\u003c\/li\u003e\n\u003cli\u003eOil painting mediums and solvents, including linseed oil, cold wax, and Liquin gel\u003c\/li\u003e\n\u003cli\u003eFinal finishes in gloss and semi gloss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you’re building layers, adding texture, preparing a surface, or refining the finish of a completed painting, find materials to support your process.\u003c\/p\u003e","products":[{"product_id":"amsterdam-gesso-white-250ml","title":"Amsterdam Gesso White, 250ml","description":"\u003cp\u003eA reliable, professional-grade gesso that primes and prepares your surface for acrylic painting. Amsterdam Gesso White creates a smooth, absorbent ground that improves paint adhesion and gives you a consistent base to work from, whether you're painting on canvas, board, or paper.\u003c\/p\u003e\u003cp\u003eThick enough to build texture, flexible enough to stay crack-free, and fully compatible with all Amsterdam acrylics and most other water-based mediums. A studio essential for artists who take their surface prep seriously.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 250ml\u003c\/li\u003e\n\u003cli\u003eColour: White\u003c\/li\u003e\n\u003cli\u003eWater-based, flexible formula\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion on canvas, board, and paper\u003c\/li\u003e\n\u003cli\u003eIntermixable with Amsterdam acrylic mediums\u003c\/li\u003e\n\u003cli\u003eFast-drying\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amsterdam","offers":[{"title":"Default Title","offer_id":53583223816557,"sku":"ROY-24173001","price":21.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/BestArtSupply_Amsterdam_Gesso_White_250mL.jpg?v=1789490428"},{"product_id":"amsterdam-heavy-gel-medium-gloss-250ml","title":"Amsterdam Heavy Gel Medium, Gloss, 250ml","description":"\u003cp\u003eA thick, stiff gel medium with a luminous gloss finish. Amsterdam Heavy Gel Medium in gloss holds peaks and brush marks just like the matte version, but dries with a clear, shiny surface that enhances colour depth and adds a rich, wet-looking quality to your work.\u003c\/p\u003e\u003cp\u003eGreat for impasto work, texture building, and mixed media where you want serious body with a polished finish. Mix into Amsterdam acrylics to add volume and gloss, or apply straight for sculptural effects.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 250ml\u003c\/li\u003e\n\u003cli\u003eFinish: Gloss\u003c\/li\u003e\n\u003cli\u003eHeavy body formula for impasto and texture work\u003c\/li\u003e\n\u003cli\u003eHolds peaks and brush marks when dry\u003c\/li\u003e\n\u003cli\u003eEnhances colour depth and luminosity\u003c\/li\u003e\n\u003cli\u003eDries flexible and crack-resistant\u003c\/li\u003e\n\u003cli\u003eIntermixable with all Amsterdam acrylics\u003c\/li\u003e\n\u003cli\u003eWater-based\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amsterdam","offers":[{"title":"Default Title","offer_id":53583223849325,"sku":"ROY-24173015","price":21.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/BestArtSupply_Amsterdam_Heavy_Gel_Medium_Gloss_250mL.jpg?v=1789490725"},{"product_id":"gamblin-gamvar-picture-varnish","title":"Gamblin Gamvar Picture Varnish","description":"\u003cp\u003eGamblin Gamvar Picture Varnish is a professional-grade, removable varnish formulated for finished oil and acrylic paintings. It saturates colours, restores depth and clarity, and provides a protective, UV-resistant coating that can be safely removed with Gamsol when reapplication is needed.\u003c\/p\u003e\n\u003cp\u003eGamvar is available in Gloss, Satin, and Matte finishes, allowing artists to choose the surface quality that best suits their work. It can be applied as soon as the painting is thoroughly dry, and dries quickly to a clear, non-yellowing film.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor use on finished oil and acrylic paintings\u003c\/li\u003e\n\u003cli\u003eAvailable in Gloss, Satin, and Matte finishes\u003c\/li\u003e\n\u003cli\u003eSaturates colour and restores depth and clarity\u003c\/li\u003e\n\u003cli\u003eUV-resistant and non-yellowing formula\u003c\/li\u003e\n\u003cli\u003eRemovable with Gamsol odourless mineral spirits\u003c\/li\u003e\n\u003cli\u003eDries quickly to a clear, flexible film\u003c\/li\u003e\n\u003cli\u003eApply with a soft varnish brush in a dust-free environment\u003c\/li\u003e\n\u003cli\u003eDo not apply over wet or tacky paint\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApply in thin, even coats with a dedicated varnish brush.\u003c\/p\u003e","brand":"Gamblin","offers":[{"title":"Gloss \/ 4.2 fl oz (125 ml)","offer_id":53811688046957,"sku":"GAM-70064","price":22.0,"currency_code":"CAD","in_stock":true},{"title":"Satin \/ 4.2 fl oz (125 ml)","offer_id":53811688079725,"sku":"GAM-70065","price":22.0,"currency_code":"CAD","in_stock":true},{"title":"Matte \/ 4.2 fl oz (125 ml)","offer_id":53811688112493,"sku":"GAM-70066","price":22.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Gamblin_Gamvar_Picture_Varnish_125mL_Gloss.jpg?v=1789491688"},{"product_id":"amsterdam-gesso-transparent-250ml","title":"Amsterdam Gesso Transparent, 250ml","description":"\u003cp\u003eA clear, flexible primer that prepares your surface for acrylic painting without covering the texture or colour underneath. Amsterdam Gesso Transparent is ideal when you want to prime canvas, board, or paper while keeping the natural grain or tone of the surface visible through your paint layers.\u003c\/p\u003e\u003cp\u003eSame reliable formula as the white and black gesso, with excellent adhesion and flexibility. A great choice for artists who like to work with the surface rather than against it.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 250ml\u003c\/li\u003e\n\u003cli\u003eColour: Transparent\u003c\/li\u003e\n\u003cli\u003eWater-based, flexible formula\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion on canvas, board, and paper\u003c\/li\u003e\n\u003cli\u003ePreserves surface texture and tone\u003c\/li\u003e\n\u003cli\u003eIntermixable with Amsterdam acrylic mediums\u003c\/li\u003e\n\u003cli\u003eFast-drying\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Amsterdam","offers":[{"title":"Default Title","offer_id":53583227224429,"sku":"ROY-24173000","price":21.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/BestArtSupply_Amsterdam_Gesso_Transparent_250mL.jpg?v=1789494243"},{"product_id":"gamblin-cold-wax-medium","title":"Gamblin Cold Wax Medium","description":"\u003cp\u003eGamblin Cold Wax Medium is a paste medium made from refined beeswax and odourless mineral spirits. You can mix it directly into oil paint to create a wide range of effects, from matte, velvety surfaces to thick, sculptural impasto textures. It is one of the most versatile mediums for oil painters working in contemporary and encaustic-inspired styles.\u003c\/p\u003e\n\u003cp\u003eCold Wax Medium increases paint body and transparency, speeds drying time, and reduces gloss. Apply it in multiple layers and work it with palette knives, brushes, or mark-making tools for rich textural surfaces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade from refined beeswax and odourless mineral spirits\u003c\/li\u003e\n\u003cli\u003eIncreases paint body and transparency\u003c\/li\u003e\n\u003cli\u003eCreates a matte to satin finish\u003c\/li\u003e\n\u003cli\u003eIdeal for impasto, layering, and textural techniques\u003c\/li\u003e\n\u003cli\u003eSpeeds drying time of oil paint\u003c\/li\u003e\n\u003cli\u003eCompatible with all oil paints and Gamblin mediums\u003c\/li\u003e\n\u003cli\u003eCan be used as a final wax finish over dry oil paintings\u003c\/li\u003e\n\u003cli\u003eApply with a palette knife, brush, or mark-making tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvailable in two sizes. \u003c\/p\u003e","brand":"Gamblin","offers":[{"title":"4 oz","offer_id":53811602227565,"sku":"GAM-3016","price":19.5,"currency_code":"CAD","in_stock":true},{"title":"16 oz","offer_id":53811602260333,"sku":"GAM-3017","price":54.5,"currency_code":"CAD","in_stock":true},{"title":"32 oz","offer_id":67584715096429,"sku":null,"price":79.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Gamblin_Cold_Wax_Medium_40z.png?v=1790711353"},{"product_id":"winsor-newton-liquin-light-gel-medium","title":"Winsor \u0026 Newton Liquin Gel Medium","description":"\u003cp\u003eWinsor \u0026amp; Newton Liquin Light Gel Medium is a semi-transparent, thixotropic alkyd medium that adds body and texture to oil paint while significantly speeding up drying time. It is ideal for impasto and textured techniques, holding brushstrokes and palette knife marks without slumping or spreading.\u003c\/p\u003e\u003cp\u003eUnlike heavier gel mediums, Liquin Light Gel maintains a lighter consistency that blends smoothly into paint, making it versatile for both building texture and creating translucent glazes. 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Amsterdam Gel Medium in gloss enhances colour depth and gives your surface a clear, wet-looking sheen that makes colours pop.\u003c\/p\u003e\u003cp\u003eGreat for glazing, layering, and any work where you want translucency with a polished finish. 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Amsterdam Gel Medium in matte gives you more working time and a soft, non-reflective finish that keeps the focus on colour rather than surface sheen.\u003c\/p\u003e\u003cp\u003eGreat for layering, glazing, and blending work where you want depth and translucency without the shine. 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Amsterdam Heavy Gel Medium in matte is ideal for building texture, impasto work, and mixed media applications where you want serious body without any shine in the finished surface.\u003c\/p\u003e\u003cp\u003eMix it into your Amsterdam acrylics to add volume and texture while maintaining colour integrity, or use it straight from the jar to sculpt and build. 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Amsterdam Modeling Paste holds its shape when applied and dries to a hard, sandable finish, making it ideal for creating three-dimensional effects, textured grounds, and structural elements in your work.\u003c\/p\u003e\u003cp\u003eApply with a palette knife, brush, or any tool you like. Once dry, it can be painted over with acrylics, sanded, carved, or sealed. 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A studio essential for glazing, colour mixing, and extending working time.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExtends and thins acrylic paint while maintaining colour strength\u003c\/li\u003e\n\u003cli\u003eIncreases transparency for glazing and layering\u003c\/li\u003e\n\u003cli\u003eDries clear and flexible with a gloss finish\u003c\/li\u003e\n\u003cli\u003eImproves flow and levelling\u003c\/li\u003e\n\u003cli\u003eCompatible with all acrylic paints and mediums\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art Manufacturing, Kingston, Ontario\u003c\/li\u003e\n\u003cli\u003eAvailable in 120mL and 250mL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"120mL","offer_id":53631227068781,"sku":"2613","price":11.5,"currency_code":"CAD","in_stock":true},{"title":"250mL","offer_id":53631227101549,"sku":"1371","price":18.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_Polymer_Medium_Gloss_250mL.jpg?v=1788887679"},{"product_id":"tri-art-polymer-medium-matte","title":"Tri-Art Polymer Medium Matte","description":"\u003cp\u003eTri-Art Polymer Medium Matte is a versatile acrylic medium that extends paint, increases transparency, and enhances flow while drying to a smooth, non-reflective matte finish. Made in Canada by Tri-Art Manufacturing in Kingston, Ontario, it is formulated to work seamlessly with Tri-Art High Viscosity and all acrylic paints.\u003c\/p\u003e\u003cp\u003eUse it to thin heavy body acrylics while maintaining adhesion and body, or to build transparent layering effects with a clean matte surface. It dries clear and flexible without the streaking or cloudiness of water-thinned paint, and levels smoothly without streaking. A studio essential for artists who prefer a flat, unified surface finish.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExtends and thins acrylic paint while maintaining colour strength\u003c\/li\u003e\n\u003cli\u003eIncreases transparency for glazing and layering\u003c\/li\u003e\n\u003cli\u003eDries clear and flexible with a matte finish\u003c\/li\u003e\n\u003cli\u003eImproves flow and levelling\u003c\/li\u003e\n\u003cli\u003eCompatible with all acrylic paints and mediums\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art Manufacturing, Kingston, Ontario\u003c\/li\u003e\n\u003cli\u003eAvailable in 120mL and 250mL\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"120mL","offer_id":53631227134317,"sku":"7288","price":11.5,"currency_code":"CAD","in_stock":true},{"title":"250mL","offer_id":53631227167085,"sku":"1375","price":18.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_Polymer_Medium_250mL_Matte.jpg?v=1788548150"},{"product_id":"tri-art-retarder-medium","title":"Tri-Art Retarder Medium","description":"\u003cp\u003eA slow-drying medium from Tri-Art, one of Canada's leading professional acrylic manufacturers. Tri-Art Retarder Medium extends the open time of your acrylics, giving you more time to blend, soften edges, and work wet-into-wet before the paint sets.\u003c\/p\u003e\u003cp\u003eAdd a small amount to your paint to slow drying without affecting colour strength or adhesion. Particularly useful for portraiture, smooth gradients, and any technique where you need more working time on the surface.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable in 120mL and 250mL\u003c\/li\u003e\n\u003cli\u003eExtends open time for wet-into-wet blending\u003c\/li\u003e\n\u003cli\u003eSoftens edges and improves blendability\u003c\/li\u003e\n\u003cli\u003eDoes not affect colour strength or adhesion\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art\u003c\/li\u003e\n\u003cli\u003eWater-based, intermixable with all acrylics\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"120mL","offer_id":53631227199853,"sku":"1379","price":11.5,"currency_code":"CAD","in_stock":false},{"title":"250mL","offer_id":53631227232621,"sku":"1380","price":14.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_Retarder_Medium_250mL.jpg?v=1788887727"},{"product_id":"tri-art-self-leveling-gel-matte","title":"Tri-Art Self Leveling Gel, Matte","description":"\u003cp\u003eA smooth, self-leveling gel medium from Tri-Art, one of Canada's leading professional acrylic manufacturers. Tri-Art Self Leveling Gel in matte flows out evenly on its own, eliminating brush marks and creating a flat, uniform surface with a soft, non-reflective finish.\u003c\/p\u003e\u003cp\u003eMix it into your acrylics to improve flow and leveling, or use it as a glazing medium for transparent layers that dry smooth and matte. A great choice for artists who want a clean, controlled surface without the shine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable in 250mL and 500mL\u003c\/li\u003e\n\u003cli\u003eFinish: Matte\u003c\/li\u003e\n\u003cli\u003eSelf-leveling formula eliminates brush marks\u003c\/li\u003e\n\u003cli\u003eImproves flow and transparency\u003c\/li\u003e\n\u003cli\u003eDries to a smooth, flat matte finish\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art\u003c\/li\u003e\n\u003cli\u003eWater-based, intermixable with all acrylics\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"250mL","offer_id":53631227265389,"sku":"4583","price":27.0,"currency_code":"CAD","in_stock":true},{"title":"500mL","offer_id":53631227298157,"sku":"4584","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_Self_Leveling_Gel_250mL_Matte.jpg?v=1788887940"},{"product_id":"tri-art-alkali-refined-linseed-oil","title":"Tri-Art Alkali Refined Linseed Oil","description":"\u003cp\u003eA high-quality alkali refined linseed oil for oil painting from Tri-Art, one of Canada's leading professional art material manufacturers. Alkali refining removes impurities and reduces the yellowing tendency of raw linseed oil, giving you a cleaner, more reliable drying oil that won't shift your colours over time.\u003c\/p\u003e\u003cp\u003eUse it to improve the flow and transparency of oil paints, extend drying time slightly for wet-into-wet blending, or build up rich, luminous glazing layers. A foundational medium for traditional oil painting technique.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable in 250mL and 500mL\u003c\/li\u003e\n\u003cli\u003eAlkali refined to reduce yellowing\u003c\/li\u003e\n\u003cli\u003eImproves flow and transparency of oil paint\u003c\/li\u003e\n\u003cli\u003eIdeal for glazing and blending techniques\u003c\/li\u003e\n\u003cli\u003eSlightly extends drying time\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art\u003c\/li\u003e\n\u003cli\u003eFor use with oil-based paints\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"250mL","offer_id":53631227330925,"sku":"1508","price":12.5,"currency_code":"CAD","in_stock":true},{"title":"500mL","offer_id":53631227363693,"sku":"1509","price":22.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/BestArtSupply_Tri-Art_Alkali_Refined_Linseed_Oil.jpg?v=1790282549"},{"product_id":"tri-art-d-limonene","title":"Tri-Art D-Limonene","description":"\u003cp\u003eA natural, citrus-based solvent for oil painting from Tri-Art, one of Canada's leading professional art material manufacturers. Tri-Art D-Limonene is derived from orange peel and offers a pleasant citrus scent in place of the harsh fumes of traditional mineral spirits, making it a more comfortable and eco-conscious choice for the studio.\u003c\/p\u003e\u003cp\u003eUse it to thin oil paints, clean brushes, and remove dried paint from palettes and tools. It works effectively as a brush cleaner and paint thinner while being gentler on the environment than petroleum-based solvents.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable in 250mL\u003c\/li\u003e\n\u003cli\u003eNatural citrus-based solvent derived from orange peel\u003c\/li\u003e\n\u003cli\u003ePleasant scent, no harsh petroleum fumes\u003c\/li\u003e\n\u003cli\u003eThins oil paint and cleans brushes effectively\u003c\/li\u003e\n\u003cli\u003eMore eco-conscious alternative to mineral spirits\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art\u003c\/li\u003e\n\u003cli\u003eFor use with oil-based paints and mediums\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"250mL","offer_id":53631227494765,"sku":"4878","price":29.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_D-Limonene_250mL.jpg?v=1788548676"},{"product_id":"tri-art-odourless-solvent","title":"Tri-Art Odourless Solvent","description":"\u003cp\u003eA low-odour solvent for oil painting from Tri-Art, one of Canada's leading professional art material manufacturers. Tri-Art Odourless Solvent thins oil paints, cleans brushes, and works as a painting medium without the harsh fumes of traditional mineral spirits, making it a much more pleasant option for studio use.\u003c\/p\u003e\u003cp\u003eIdeal for artists who work indoors or in shared spaces where ventilation is limited. Use it to thin paint for initial layers, clean brushes between colours, or mix with oil mediums for glazing and blending.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable in 500mL\u003c\/li\u003e\n\u003cli\u003eLow-odour formula for comfortable studio use\u003c\/li\u003e\n\u003cli\u003eThins oil paint and cleans brushes\u003c\/li\u003e\n\u003cli\u003eSuitable for use in poorly ventilated spaces\u003c\/li\u003e\n\u003cli\u003eMade in Canada by Tri-Art\u003c\/li\u003e\n\u003cli\u003eFor use with oil-based paints and mediums\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tri-Art","offers":[{"title":"500mL","offer_id":53631227527533,"sku":"403","price":12.75,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/9868\/9901\/files\/Best_Art_Supply_Tri-Art_Odourless_Solvent.jpg?v=1790286142"},{"product_id":"demco-acrylic-fabric-medium-237-ml","title":"Demco Acrylic Fabric Medium, 237 ml","description":"\u003cp\u003eBring your acrylic colours to clothing, hats, bags, and more with Demco Acrylic Fabric Medium. Mix it with acrylic paint to create your own designs on fabric, from painted details to printed patterns.\u003c\/p\u003e\n\u003cp\u003eApply your colour mixture with a brush, screen printing, or block printing. For best results, use washable natural fabrics or natural blends. Heat setting makes the design permanent. 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