Spar Varnish Over Paint

It has natural uv protecting properties.

Spar varnish over paint. An acrylic latex paint is preferred because it is capable of forming a hard but flexible film over the relatively soft helmsman spar urethane. It came as a raw wood door and was stained with a spar varnish by our painting contractor. Is it not a good idea to apply something like that over an exterior paint. Now the exterior of this door has faded dramatically and needs to be restained.

It is semi thick tends to flow off brushes nicely imparts a warm amber color to surfaces and is easy to re apply over old varnish providing that the old varnish is not too badly degraded. Varnish can be used to protect preserve and enhance paint. This can distort the colors of the item you have painted. Cole hardware is telling us we need to choose a color stain or paint before we apply the spar varnish.

Use above the waterline only. Ive used helmsman spar varnish on outdoor furniture before without any issues. Spar varnish protects the wood from water heat stain and solvent discoloration. However oil based varnishes typically have a natural amber tint and often become more yellow over time.

Traditional varnish sometimes called spar varnish or marine varnish is a resin in an oil base with solvents. The formulation of the product allows it to move with the wood throughout each season. Most professionals agree that water based varnish is the best product to use over paint. Lacquer can cause the paint to bubble or crack due to the very hot solvent that is a part of lacquer.

Marine spar varnish can be applied over varnished stained or lacquered surfaces. It provides a fair amount of scratch resistance. Rust oleum marine spar varnish is a clear finish designed to provide maximum protection against sunlight water sea spray and chemical resistance on exterior wood boat surfaces including trim railings and wood furniture. Spar varnish must be reapplied periodically as it will chip flake or chalk off over time.

She claimed it would significantly yellow whatever it was painted over and more importantly would be short lived and flake off as it needs the bare wood for adhesion. And yes i was referring to exterior paints. With all the modern advances in coatings polyurethane shellac urethane or varnish some confusion about formula is to be expected. So just use a good exterior paint and call it good.

An oil based varnish can be applied over completely dry acrylic paint with little difficulty. From what i can tell of the original finish only the spar varnish was. The polyurethane type of varnish is usually the best choice for this.