 |
Articles By Syndicated Columnist
Dan Thomas
© Copyright Home
Improvement Inside And Out
Identifying Paint Problems
Peeling
When paint curls away from the surface. It is usually caused by
moisture in the wood. The source of the moisture
should be located and eliminated. Siding vents may help dispel moisture vapor.
Latex paint may also help with moisture problems. A second cause of peeling is
that paint was applied over a glossy surface. Scrape off all loose paint flakes
with a wire brush and sand the surface to feather sharp edges. Prime any
bare spots before painting.
Alligatoring
 When paint shrinks into individual islands exposing the previous surfaces. The
result is a surface that resembles an alligator skin. Noncompatible paints,
old surfaces of paints containing lead, and second coats applied when the
surface was not dry can all be responsible for this condition. The surface
should be scraped, sanded, and primed before repainting. If you suspect leas
paint as a cause, you may want to consider hiring a professional to deal with
this problem.
Blistering
Moisture or improper painting is usually the culprit when paint rises from
the surface and forms blisters. To make sure, scrape off a blister: if dry wood
is behind the blister, the problem is moisture. If you find paint, it is
probably a solvent blister caused by using oil or alkyd based coating in hot
weather. The heat forms a shin on the paint and traps the solvent in a bubble.
Wrinkling
 New paint can run and sag into a series of droops when the paint is too
thick and forms a surface film over the still liquid paint below or if the
surface was painted in cold weather. Sand the wrinkled area smooth or remove the
old paint. To recoat, make sure the new paint is the proper consistency and be
sure to brush it out as you apply.
Chalking
When paint has a dusty surface. It is considered to be chalking. Some alkyd
based paints are designed to chalk so
that when it rains a powdery layer is
released. automatically cleaning the surface. If the chalking stains foundations
and sidewalks, too much chalking is occurring. Thoroughly was down the chalking
surfaces, then paint over them with
a nonchalking paint.
Mildew
This moldy growth appears where there is dampness and shade. If you paint over
it, it is likely to come right through the new paint. Use a fungicide
solution, such as chlorine bleach or commercial solution to kill patches of
mildew before repainting. Follow the manufacturers instructions carefully when
using such solutions.
|
|
|
|
|
