Crawling/Cracking Over Caulk
 

Description:
The cracking of the paint film over a caulked area resulting in a loss of adhesion or lack of coverage of the caulk with paint.

Possible Cause:
• When paint is applied over a partially dried bead of caulk, the paint dries first, forming a film. As the caulk continues to dry, it shrinks causing the paint film to stretch and crack.

• Conditions that adversely affect the drying time are air, surface or caulk temperatures below 40°F; high humidity; and joints in excess of 1/2'' in width or depth.

• Some caulks are not paintable. Before using caulk, make sure it says paintable on the packaging.

Solution:
Allow the caulk to thoroughly dry according to the manufacturer's label instructions before applying a paint or coating.

Recommended System:
Primer
1 Coat of FLEX BON #107 Series Interior Acrylic Latex Primer
Topcoat
Top Quality FLEX BON Interior Latex Paint