How much Gloss Varnish do i need to properly coat an 18"x24" Canvas?

There is a formula for paint coverage on YouTube that specifies the number of ounces/grams needed to cover a canvas. I'm not sure if it would answer your needs, but here it is. Measure your canvas height and width then multiply them by each other to get the square inches. Multiply the square inches by 0.1 to get the ounces needed to cover your canvas. To convert to grams, multiply the ounces by 28. This is only a rough guide as the paint consistency will affect coverage, i.e., the thinner the paint, the fewer ounces needed.

What is the effective difference between normal matte medium and the matte fluid medium?

The normal matte medium will only produce a matte effect on the paint. The matte fluid medium will give the same matte effect, but will also lessen the viscosity of the acrylic paint you’re mixing in making it thinner and slightly more transparent (depending on the amount of medium added).

can it withstand high heat ?

Yes it will but I wouldn't put it outside in the direct sun. You would need a varnish for that.

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Liquitex BASICS GLOSS VARNISH 250ML

Product ID: 337796292

Details

Brand
Liquitex
Colour
Gloss Varnish
Finish type
Gloss
Item volume
250
Size
250

✨Permanent high-gloss finish

⏱️Fast drying, no residue

🛡️Non-yellowing, long-lasting protection

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A$36

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Description

✨ Protect your art with a gloss that speaks volumes!

DURABLE CLARITY - Dries crystal clear without yellowing, preserving your masterpiece for years to come.
SAFE CERTIFIED - ACMI certified and ASTM d4236 compliant—trusted for professional and educational use.
CUSTOMIZABLE SHEEN - Mix with matte varnish to tailor your finish from satin to high gloss effortlessly.
EFFORTLESS APPLICATION - Designed for smooth coverage with a large soft brush, ensuring a streak-free finish.
ULTIMATE SHINE EVERY TIME - Achieve a flawless, permanent gloss that elevates your artwork’s brilliance.

Gloss Varnish 250ml by ColArt Americas delivers a permanent, clear, and non-yellowing protective finish for paintings. Fast drying and ACMI certified, it’s perfect for professionals and educators seeking durable, customizable sheen options with easy brush application.

Reviews

L**N

ليس لي غنى عنه

يعطي لمعان جميل بعد جفاف اللوحة

13.01.2024

A**X

Good quality

12.12.2024

S**I

Best

I love this varnish hut its too expensive

9.01.2025

S**O

Great quality easy to use

I like the texture coverage this varnish gives to my acrylic pour art l.

3.04.2022

M**A

احلى ورنيش

احلى ورنيش للجبس او الديكور بالنسبة لي بس يا ريت لو ينزلون من سعره

26.12.2022

M**.

EXCELLENT PRODUCT.

Used it over acrylic paint on a suitcase. protected it very well. recommend!

20.01.2026

R**T

تحت التجربة

لسسسسسسه ماجربتها

24.03.2025

C**.

Crystal Clear Protection with a Professional Finish

This varnish brought my acrylic pieces to life! It dries to a sleek, glossy finish that enhances colors without yellowing or streaking. Super easy to apply—just a soft brush and patience. It gives my work that final “gallery-ready” polish and protects it from dust and scratches. Great quality, great value, and a must-have for any artist’s studio.

25.07.2025

J**Y

Tres bien

Tres bon produit , heureusement pour le prix lol

25.12.2022

T**T

Excellent product

I use this product on acrylic paint artwork. Easy to use, no chemical odor, applies smoothly with a soft bristle brush, dries to a smooth, moderately glossy finish. Exactly what I was looking for.

3.03.2026

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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A$36

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Australia.

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Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Brand	Liquitex
Colour	Gloss Varnish
Finish type	Gloss
Item volume	250 Milliliters
Size	250 milliliters
Special features	UV Resistant

Liquitex BASICS GLOSS VARNISH 250ML

Details

Details

Description

Specifications

Reviews

Common Questions