Acrylic paint for wood finishing
The meaning of acrylic
paint or coatings
is the paint or coatings that
use acrylic resin as its main ingredient. In coatings
terminology, the acrylic resin
is the resin from polymer and co-polymer
of esters of
methacrylic and acrylic
acid. The co-polymers these ester resin with the non–acrylic
monomer such as: styrene, butadiene or vinyl acetate are still named as acrylic
resin. The acrylic resin can be
manufactured conveniently in several physical forms: the acrylic emulsions, the
solvent solution and the powder pallet. The acrylic resins then can be modified
in the formulation of the final product.
In the finishing industry, the acrylic
resin is usually mixed with other resin to make the specific formula to make coating or paint. The uses of the acrylic resin in the coating
industry is very broad. It is one of the most versatile resins used in the
coating field. The ad of acrylic resin in the coating will increase the stability, good
exterior durability, excellent color retention, resistance to the UV light, and
chemical resistance.
There are some types of paint that can
be named as acrylic paint. When it is in the coating form, the "acrylic resin" paints
could have different properties each other and we might be not able to be mixed
them in the finishing application. When we are going to use the acrylic paint,
we have to read carefully how it should be used. We always need to follow the
technical data sheet and the instruction to get the maximum result.
In the wood finishing, the acrylic
paint usually refers to the non yellowing coating (the thinner based paint), the latex paint and the water based paint.
latex paint finish
- Acrylic paint (latex paint).
It is a paint containing suspension
in acrylic
polymer emulsion
mixed with pigment. It is available in many colors and most used to the wall paint
or the decorative coating. The acrylic paint is diluted with water, but it becomes
water-resistant when it dries. This paints also
available in the other special form to be used for hand paint.
In the wood
finishing the acrylic water based paint is usually used to make paint finish.
It can give the thick and strong opaque color. It is also can be used to make
some special finish effect such as: wash finish, texture effect, crackle
effect, etc. The use of acrylic paint in the wood finishing usually is combined
with other coating such as: NC, PU or acrylic coating.
- Oil acrylic paint.
The oil
acrylic paint is made of acrylic resin solution or powder form which is mixed
with pigments. It is oil base paint. This paint is widely used by the artist
painter to do he hand painting. It can produce bright color and available in
wide range of color. It is oil base, so it takes long time to dry.
- Acrylic lacquer.
Acrylic
lacquer refers to the non-yellowing lacquer. The acrylic resin in the lacquer
wills ad the resistance to the UV light, but the pure acrylic lacquer is rarely
used, since it hard, brittle and expensive. The dry film resulted will not turn
to yellow. It is used to make the white finish or light color finish, when the
film yellowing is not allowed. The acrylic resin that is mixed with cellulose
acetate butyrate is the most popular non yellowing lacquer.
non yellowing PU for white finish
- Acrylic Polyurethane.
Polyurethane
is a polymer that is formed from the urethane polymerization reaction. Urethane
produced from the reaction between the poly isocyanate with the materials that
have hydroxyl group. When the acrylic is used as the hydroxyl group resin, it
is called the acrylic PU. It is the non yellowing Polyurethane coating. It is
used to make PU finish for the white color.
- Water based coatings.
The water
based coatings is the emulsion aqueous solution. The water based coating is
made of acrylic resin, modified acrylic or one component urethane. The water
based acrylic resin is the acrylic emulsion. It is similar with the latex paint
but it is clear. It is diluted with water, but when it dries it will hard and
strong and resistant to the water. It is
produce non yellowing film, fast dry and has high resistance to the chemical,
solvent and mechanical abuse. The water based coating now is very popular since
the environmentally issue.
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