Some faux finishes speak to for a varnish to protect the surface, and varnishing end dull paint have the right to brighten that and include shine. Varnish deserve to be used over latex paint if you usage the right kind; however, utilizing the not correct varnish can readjust the color of the paint. As a result, there are some approaches you need to be conscious of before starting a varnishing project.
You are watching: Can you put varnish over paint
Assess your Goals
The latex glazes and paints supplied for faux paint are fairly washable, yet varnishing provides an extra layer of protection. So, faux finishes regularly are varnished over, particularly if the surface ar is going to take part use and abuse. The varnish also can serve to even out the gloss and also intensify the colors.
If you"ve used a high-quality, long lasting latex or acrylic paint, varnishing end it won"t necessarily make it much more durable. However if the paint used was reduced quality, or if you simply want to increase the gloss, varnishing is the answer.
Use only internal varnishes over interior paints, and also exterior varnishes outside. Be afflicted with in mind that exterior oil-based or maritime spar varnishes have a tendency to yellow end time and will readjust the repaint color.
Choose the best Varnish
Virtually any type of varnish will job-related over latex paint other than lacquer. Lacquer will certainly wrinkle and ruin the finish.
Oil-based varnishes and also polyurethanes deserve to be used over latex paints. They provide the toughest finish, but will every yellow the underlying shade to a certain degree. Avoid their usage on white or very light colors unless you are trying to attain an antiqued or aged effect. They also take much longer to dry, so bear this in psychic if you space doing lot of coats. You may only have the ability to paint one coat a day.
Water-based polyurethane works very well, dries faster and also is non-yellowing. That is not quite as durable as oil-based varnish, however is still very resistant to scuffing and also abrasion.
Water-based acrylic varnish likewise can be provided over any type of latex paint. That is thinner than either oil or polyurethane, and may take an extra coat to achieve full hardness and also shine. However, the is simple to apply and dries quickly. Beware: Acrylic varnishes deserve to scare you in ~ first. They walk on milky-white, yet rest assured they dried to a crystal-clear finish.
Prepare the surface ar Correctly
There"s no should sand or clean a freshly painted latex or faux-finished surface. Just wait at least eight hours before using the varnish and also apply it together you would an additional coat of paint; just make certain your devices are completely clean.
For older, cured latex repaint surfaces, either usage a fine sanding sponge to easy sand that down, or usage a "liquid sander" (see Resources). Make sure the painted surface is perfect clean and totally free of dust before varnishing.
See more: Find The Number Of Diagonals In A Dodecagon ? How Many Diagonals Will 12 Sided Figure Have
Never shower any kind of varnish prior to application. This creates tiny bubbles that can provide you an uneven sheen. Instead, row it through a clean row stick, then pour small amounts together needed into a clean container to job-related from.