Removing Paint with Chemical Paint Strippers
Stripping Paint with Chemical
Paint Remover
Introduction:
When refinishing furniture,
wooden window frames and other items around the
house often the old paint finish must be removed
first. This is not always an easy task and it is
often messy. The best way to remove old paint is
simply by sanding it off, but this isn’t always
possible. The items may have a veneer wood finish
that is only a few thousands of an inch thick.
Attempting to sand a veneer
wood finish will destroy the wood veneer. When
sanding is not practical the only other alternative
is to use a chemical paint stripper. Removing paint
with a chemical paint stripper is highly effective
at removing old paint but requires precautions.
Although some paint removers
are very effective at removing paint by removing
the paint quickly and easily, chemical paint
removers are highly caustic. Caustic paint
strippers should not be used indoors because of the
health hazards. If at all possible they should only
be used outdoors or in a well ventilated space.
Some of the chemicals paint
strippers and their chemicals used in chemical
paint strippers are as follows;
Methylene chloride paint
strippers can remove multiple layers of paint very
quickly however they are considered hazardous and
require ventilation. They also require more than
one reapplication because they evaporate quickly.
When working with these paint strippers you should
wear an organic vapor respirator with a new
cartridge.
NMP and DBE strippers
(N-methyl pyrrolidone and di-basic esters) are
considered safer to use than methylene chloride but
they are slower acting. They also require good
ventilation and may require you to wear an organic
vapor respirator. They are generally a better
choice than methylene chloride for the DIY
homeowner.
The best choice is to use
caustic paint strippers that remove multiple layers
of paint and have non-toxic fumes. These require a
vinegar rinse before reapplying the finish.
However, they are not recommended for use on
hardwoods or veneer finishes.
Removing paint with chemical
paint strippers can be very hazardous. Always use
chemical paint strippers outside the home if at all
possible. If it is not possible the work space
should be well ventilated and an organic respirator
should be worn.
Related articles:
Painting
Safety Tips
Pealing Concrete Floor Paint
Priming and Pre-finishing Wood Trim