Acrylic Clear Coat Over Water Based Paint

It therefore forms a weak bond with acrylic paint if the paint is applied on top of the oil paint.

Acrylic clear coat over water based paint.

Oil based paints form a harder longer. Paint an even thin coat that goes on milky but dries clear. The chemicals allow the paint to expand and contract with the weather and temperature making it a good choice for home exteriors. When to choose oil based paint.

As an example acrylic paints should not be used over oil based paints. The product is known as gamvar and the solvent is gamsol. When you spray lacquer over a solvent based acrylic finish they combine to form a hybrid film even if the acrylic is pigmented to form a paint. The acrylic based clear paint can be used to provide a coat on the top of existing paint to provide a gloss finish.

I recommend painting an isolation layer on your piece first. Gamvar comes in matte satin or gloss. It isn t unusual to clear coat an acrylic paint finish on a metal surface such as on an automobile with cab acrylic or acrylic lacquer. If you are just applying decorative work then apply a clear.

Polyurethane can be oil or water based and you can use either kind over latex paint. A polyurethane finish can prolong the life of paint and prevent ultra violet rays from causing it to fade. However oil based polyurethane tends to yellow as it ages whereas water based varieties stay transparent. This is mainly because the drying times of water based products and oil based products are different.

Unfortunately when many do it yourselfers apply polyurethane over a water based latex or acrylic paint they end up with rampant flaking. Acrylic paint like latex paint is made of acrylic resin. Using a brush roller or paint sprayer apply at least two coats of a high quality water based latex or acrylic paint e g glidden premium available at the home depot over the primed surface. An oil paint may feel dry but actually continues to cure over several years.

This solution is 2 parts golden gel medium to 1 part water. Pristine valspar 027 0018605 007 valspar pristine 100 acrylic paint primer semi gloss exterior house paint clear base 1 gal. If you want to avoid a similar outcome choose a. The difference is that while latex is water based acrylic is chemical based.

Let this gas out and the paint the gamvar on in a single thin even coat.