General Finishes Exterior 450 Clear Topcoat, Quart

Q: Is Exterior 450 water-based or oil-based?

It is a water-based finish. The base type is water, so it cleans up easily and goes on water white in the can before drying clear.

Q: What size is this container?

This product is sold as a quart of Exterior 450 clear topcoat.

Q: Who makes Exterior 450?

It is made by General Finishes , a respected manufacturer of wood stains and finishes. Explore related oils & waxes for interior work.

Description Reviews Q&A Documents

Exterior 450 Topcoat is a clear-drying finish suitable for vertical exterior surfaces, such as fences, patio furniture, garage doors, entrance doors and interior windows. It is not recommended as a deck finish. This will provide outdoor woodwork with a tough, protective finish that will withstand the rigors of sun, rain, and wind. Exterior 450 is fortified with UV absorbers to stabilize the finish and built-in mildewcide to retard mold and mildew growth. It performs well as a clear coat or as an optional topcoat over General Finishes Milk Paint.

BASIC FEATURES
Product Colors	Water White in can (dries clear)
Base Type	Water
Ambering	No
Sheen	Flat (10 or less)

Safety_Data_Sheet_-_Exterior_450_Topcoat

High_performance_instructions

Frequently Asked Questions

What surfaces is General Finishes Exterior 450 made for?

Exterior 450 is formulated for vertical exterior surfaces such as fences, patio furniture, garage doors, entrance doors, and interior windows. Browse more topcoat finishes for your project.

Can I use Exterior 450 on a deck?

No. Exterior 450 is not recommended as a deck finish. It is designed for vertical exterior woodwork rather than horizontal, foot-traffic surfaces.

Is Exterior 450 water-based or oil-based?

It is a water-based finish. The base type is water, so it cleans up easily and goes on water white in the can before drying clear.

Will this topcoat amber or yellow the wood?

No. Exterior 450 is rated with no ambering, so it dries clear and will not add a yellow cast to the surface beneath it.

What sheen does Exterior 450 dry to?

It dries to a flat sheen, rated 10 or less, for a low-glare, natural-looking finish on outdoor woodwork.

Does it protect against UV and mildew?

Yes. Exterior 450 is fortified with UV absorbers that help stabilize the finish against sunlight and a built-in mildewcide that retards mold and mildew growth on the cured film.

Can I apply Exterior 450 over milk paint?

Yes. It performs well as a clear coat on bare wood or as an optional topcoat over General Finishes Milk Paint. Find more wood stains & finishes to build your system.

What size is this container?

This product is sold as a quart of Exterior 450 clear topcoat.

Who makes Exterior 450?

It is made by General Finishes, a respected manufacturer of wood stains and finishes. Explore related oils & waxes for interior work.

What do I need to apply it?

You can apply Exterior 450 with standard finishing tools. Stock up on brushes, pads, and other finishing supplies for a smooth, even coat.

General Finishes Exterior 450 Clear Top coat, Quart