Advertisement

7-9-15

Blocking

The sticking together of two painted surfaces. Occurs more often with latex paints on trim work such as windows and doors.

Possible Causes

• Not allowing proper dry time before closing windows or doors.
• Use of a low-quality latex semi-gloss or gloss paint
• Hot, humid or damp conditions
• Lack of good ventilation

Recommendations

• See Lead Information for warnings.**
• Read and follow proper recoat and drying times.
• Do not paint in hot, humid or damp conditions.
• Use a top quality semi-gloss acrylic product such as Accolade® Interior Acrylic Semi-Gloss Paint + Primer or RedSeal™ Interior Oil Satin Enamel. 100 percent Acrylic paints have better early block resistance than vinyl latex paints, but alkyds do develop superior block resistance over time.

Check out the Pratt & Lambert July Color of the Month

**Lead Information

Removal of old paint by sanding, scraping, or other means may generate dust or fumes that contain lead. Exposure to lead dust or fumes may cause brain damage or other adverse health effects, especially in children or pregnant women. Controlling exposure to lead or other hazardous substances requires the use of proper protective equipment, such as properly fitted respirator (NIOSH-approved) and proper containment and cleanup. For more information, call the National Lead Information Center at 1-800-424-LEAD (in U.S.) or contact your local health authority.

For those who would like more help with paint problems, see: Pratt & Lambert Problem Solvers.