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Solving Blocking Problems2018-12-18T14:50:27-05:00

SOLVING

BLOCKING PROBLEMS

BLOCKING

Undesirable sticking together of two painted surfaces when pressed together (e.g., a door sticking to the jamb).

POSSIBLE CAUSES:

  • Not allowing sufficient dry time for the coating before closing doors or windows.
  • Use of low quality semigloss or gloss paints.

SOLUTION:

  • Use top quality semigloss or gloss acrylic latex paint. Low quality latex paints can have poor block resistance, especially in warm, damp conditions.
  • Follow paint label instructions regarding dry times.
  • Acrylic latex paints generally have better early block resistance then vinyl latex paints or alkyd or oil-based paints; however, alkyds develop superior block resistance over time.
  • Application of talcum powder can relieve persistent blocking.

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Note
: Images & information provided by The Rohm & Hass Paint Quality Institute.