Art Noise is Tri-Art’s permanent acrylic gouache line, made as a 100% acrylic emulsion and designed for smooth, matte, largely opaque colour that suits illustration-style shapes, design work, and clean underpaintings; for best coverage, apply it in 2 thinner coats (let the first coat go touch-dry before the second) rather than trying to force one heavy coat. If you want to see the full colour range and sizes, start here: Art Noise Acrylic Gouache colours.

No, this is acrylic gouache, so once it dries it becomes water-resistant and does not re-wet like traditional gum-arabic gouache; if you need soft blends, do them while the layer is still wet, then let it dry fully before glazing or detailing on top. For “what is this line” context and shopping, use Tri-Art Art Noise Acrylic Gouache as your reference point.

Thin gradually and stop as soon as the paint starts to lose coverage, because excess water can make acrylic films less robust; for controlled washes and smoother flow, extend with an acrylic medium (many are essentially acrylic without pigment) and then add only a little water as needed. A practical starting point is to mix a small puddle of paint with a smaller puddle of medium, test a brushstroke on scrap, then adjust in tiny steps instead of dumping in water.

For underpainting, keep the first passes thin and matte, block in big shapes, and let the layer dry before painting on top, since acrylic forms strong bonds to itself as it dries; if you plan to add more transparent layers later, choose “Transparent” colours (when available) or thin carefully so you can still see your value map underneath. For the range that’s meant for this workflow, see Art Noise Acrylic Gouache for underpainting and layering.

You can use it in fluid techniques, but for consistent pours you will usually get better flow and fewer surface issues by mixing with a proper pouring medium rather than thinning heavily with water; as a Tri-Art option, Liquid Glass Pouring Medium and Finishing Resin is made for pouring and topcoating, and Tri-Art also makes dedicated Liquid Glass Pouring Colours formulated specifically for colour pouring. If you still want to pour with Art Noise, do a small test tile first and aim for an even, ribbon-like flow off the stir stick before you commit to a larger piece.

Coverage varies by pigment, and Tri-Art notes that the line is generally opaque with a matte finish unless the colour name indicates transparency; if you see “Transparent” in the name, plan for it to behave more like a glazing colour. A reliable technique is to do a quick drawdown test on scrap (one stroke, let dry, then a second coat) so you know whether you need two coats for flat coverage or whether you can use that colour deliberately for layered depth.

Start with a smoother ground, because paper tooth and raw canvas texture will telegraph through ultra-smooth paint films; prime first, let it dry, then lightly sand the ground and dust it off before painting if you want crisp edges and flatter passages. For a surface designed to be slightly porous with a tooth that can be sanded smoother, see Rheotech Gesso, then apply Art Noise in thinner coats and avoid overbrushing as it starts to set.

Yes, you can varnish once the paint is fully dry, but expect the surface to change, even a clear coat can deepen colour and shift the look away from the original matte; the safest approach is to test your varnish choice on a small swatch made with the same colours before you varnish the final piece. Tri-Art’s Acrylic Varnishes and Mediums collection includes final-layer varnishes meant to reduce visible brushstroke and unify sheen, and you can always return to Art Noise Acrylic Gouache colours if you’re matching hues for touch-ups.