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.

Basics Gloss Varnish 250ml | Desertcart Cook Islands

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NZ$154

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Sold byAmazon Cook IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Specifications

ASIN	B06Y477JTC
Best Sellers Rank	#190,053 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #801 in Paints
Brand	Liquitex
Brand Name	Liquitex
Colour	multicolour
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 3,231 Reviews
Finish Type	Gloss
Global Trade Identification Number	00094376977547
Is Waterproof	False
Item Form	Liquid
Item Volume	250 Millilitres
Manufacturer	Reeves
Model Number	1041008
Net Quantity	250.0 Milliliters
Part Number	1041008
Size	250 milliliters
Specific Uses For Product	Interior/Exterior
Surface Recommendation	Metal, Plastic, Stone, Wood
UPC	094376977547
Unit Count	250.0 Milliliters

Reviews

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

L**N

ليس لي غنى عنه

يعطي لمعان جميل بعد جفاف اللوحة

13.01.2024

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

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NZ$154

Duties & taxes included

In stock

Sold byAmazon Cook IslandsDelivered 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 Cook Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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Basics Gloss Varnish 250Ml

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