Water stain damage is a direct result of improper storage. If the product is still in prime paint (no finish coat has
been applied) the condition is easily detectable as follows:
Initially, the water stain appears as a discoloration or variance in sheen or gloss in •
the primer. Damaged areas will look and possibly feel different from the rest of the
product.
If the water stain has existed for a considerable length of time and was caused by •
large amounts of water, rust will start to appear through the discolored areas.
If the product has had a finish coat of paint applied, water stain damage can cause failure of the finish coat as
well:
Water stain damage can be detected by random areas of finish paint failure on the •
door as well as the appearance of uniform rust development on those areas. In some
cases the finish paint will show good adhesion in water damaged areas but will also
show a uniform layer of rust developing through the finish paint.
to correct water stain damage, use the following guidelines:
For products that are prime painted only, the affected areas should be adequately •
sanded. If necessary, the area should be sanded to bare metal. The entire door/frame
surface should then be lightly sanded and “feathered” into any heavily sanded areas.
The entire surface should then be re-prime painted.
For products that are finish painted, the affected areas should be adequately sanded. •
If necessary the area should be sanded to bare metal. The entire remaining finish-
painted area should then be lightly sanded and “feathered” into any heavily sanded
areas. If bare metal is showing, these areas should be re-prime painted and lightly
sanded to “feather” into the lightly sanded finish-painted areas. The product should
then be re-finish painted.
When the door is being prepared for top or finish coat painting, the surface should •
first be cleaned. Use the same solvent that will be used to thin the topcoat paint
and thoroughly clean all surfaces to be painted.