Special Paints
There are certain paints that are meant for special coating and
therefore their composition is such that it suits the specific
purpose. Normally such paints are used on the exteriors. These
paints are used to paint the porch, deck, paint metals, paint boats
or paint masonry. Given below is information about paints and their
qualities that make them special paints.
- For the porch and deck you can choose alkyd
paint, latex paint, polyurethane paint or
rubber based paint. As these areas of the house
are made of either wood or concrete, the area will have to be
prepared before applying paint. The range of colors is limited and
these paints dry quickly. The paint in normally poured on the floor
and roller with a long handle is used to spread the paint.
- For a metal surface the surface will have to
be primed properly. Some priming agents have rust-resistant quality
as well. Paints that can be thinned, with either water or solvent,
are available in a wide range of colors. Depending on the finish you
desire use a brush, roller or spray the paint on to the surface.
- For masonry you can use latex paint,
Portland cement, rubber-based paint or alkyd paint. Cover the
masonry with a layer of transparent silicone. Latex paint is the
easiest to apply, the rest of them are rather difficult to apply.
- Marine paint is special manufactured for
painting boats. This paint gives an extra durable finish on wood and
metal. It is very expensive and has a consistency that makes
painting a difficult task.
There are certain characteristics that paints have in different
degrees. These characteristics influence the result obtained by
using the particular paint.
- Time to dry and durability: Oil based and
alkyd based paints are durable but take a longer time to dry. Using
them on exterior walls will make them vulnerable to insect damage
and unforeseen rain. Latex paints dry rapidly, are porous reduces
moisture related difficulties but they peel off if the surface that
they are applied on are not properly prepared.
- Many exterior paints have a chalking
quality. This is a means of self-cleaning, dirt that has settled on
the paint, is removed as it peels off after every rain. The chalk
can get on your clothes if you brush against walls with exteriors
with this paint.
- Attention must be paid to the earlier coats
applied, especially wood. If the wood has been previously covered
with water thinned paint or solvent-thinned paint, use the same
product for the next coat as the case may be. If you are unsure use
alkyd-based paint which can be applied easily over both products.
- You must be clear about what kind of finish
you want for the exterior. You can choose from flat, semi-gloss and
gloss. For exteriors the popular choice is a flat finish. Enamel
finishes means semi-gloss or gloss finish.
- If you use the same color as on the walls or
a color close to it, you will spend less time painting. Use one-coat
guarantee paint, this paint is made thicker and has resins and
pigments are present in higher concentration. These paints come with
specific instructions that it should be applied over surfaces in
good condition or primed new wood. This paint is a little expensive.
So though you will spend more money, you will spend less time on
painting, which makes it a good buy.
As a rule exterior paints are more expensive than interior paints.
They contain more resin for durability and moisture resistance and
more pigment for color.
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