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 Hamilton Drywall
Products is proud to introduce Prep Coat Plus "Level 5" as our newest addition to
our paint line. Click here for more information! |
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| Delamination of
texture on drywall surfaces is an expensive and apparently increasing problem. Job site
investigation of this problem reveals not one cause, but
several. Read more >>> |
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| Texture Delamination: Causes and Preventions |
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Delamination of texture on
drywall surfaces is an expensive and apparently increasing problem. Job site investigation of this
problem reveals not one cause, but several.
It is our experience that major contributors to
texture delamination are (1) job conditions, (2) somewhat recent changes in paint formulations, (3)
inadequate paint specifications, and (4) improper application of paint products.
Drywall
finishing products are, by nature, somewhat soft materials. They are formulated to be sandable in
order to produce the desired smooth surface suitable for decoration. Textures used to decorate
drywall are likewise relatively soft, absorbent products formulated to facilitate clean-up.
Consideration must be given to the nature of these products and how they are used, when paint
products are specified and applied.
First, the drywall finishing compounds and textures
must be applied under the proper job conditions and must be allowed to dry properly. Since these
products are moisture sensitive, the paint products should provide some degree of protection against
the penetration of moisture. Hence, enamels (over sealers) have normally been specified in areas
subject to higher levels of moisture. Typically, texture delamination is not a problem in enamel
areas.
Assuming the textured drywall surface is sound and dry and the paint product is
properly applied, texture delamination will not occur. The delamination occurs only when one or
more of the following takes place: |
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1. |
The textured drywall surface
has not been allowed to dry properly due to improper job conditions or scheduling. |
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2. |
Over-thinning of paint
and/or exceeding recommended mil thickness coverage. |
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3. |
Application of paint under
improper job conditions which allow excessive re-wetting of the substrate due to poor drying
conditions. |
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4. |
Application of successive
coats of paint products before "prime" or prior coats are dry. |
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5. |
Re-wetting of the surface
from another source, such as leaks or excessive use of water, during clean-up. |
We have not been
successful in reproducing texture delamination without one or more of the foregoing factors
being present. Typically, however, we are notified or consulted only after the problem occurs
and often cannot identify which of the causes, or combinations of them, have occurred.
It
should be noted that Hamilton Materials recommends that all finishing and decoration of gypsum
drywall should be done at minimum temperatures of 50° F from beginning to end, allowing each
coat to dry before applying successive coats. This recommendation is consistent with drywall
industry recommendations, ASTM specifications and most paint manufacturing
companies. |
| Read Previous Monthly News & Specials |
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With the change in the weather
comes change in the way textures perform. Click here to
read more of this informative technical bulletin. |
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Click here for
information about Sonny Scaffolds partnership with Hamilton Drywall Products. |
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Click here for
new information regarding the Hamilton Drywall Products system! |
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Click here for
information regarding Hamilton Drywall Products newest product line! |
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Bacteria-The Spray Mans
Nemesis. Click here for solutions to minimizing
this problem. |
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Welcome!
to the Hamilton Drywall Products website. |
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