MGC Quick Drying Stain Block

Seals Stains and prevents them from bleeding through

MGC Quick Drying Stain Block is a water based matt white blocking primer that has excellent adhesion to plaster, wood and previously painted surfaces. It will seal all stains preventing them from bleeding through and spoiling new decorations. When dry it can be decorated over with any type of paint, undercoat or wallpaper.

  • Touch Dry in 30 Minutes
  • Low Odour
  • Clean Brushes in Water
  • Seals Problem Stains
  • Water Based
  • Quick Drying
  • Excellent Adhesion
  • Suitable for a Wide Range of Surfaces
  • Clean Brushes and Equipment in Water
  • Interior or Exterior Use

Seals all types of stains including:

  • Bitumen
  • Creosote
  • Nicotine
  • Tannin
  • Asphalt
  • Crayon
  • Graffiti
  • Rust
  • Soot
  • Water stains

MGC Quick Drying Stain Block can also be used as a primer on porous surfaces, new plaster, new wood and MDF skirtings window cills etc


Surfaces must be clean, dry and free from any grease or wax. Remove any unsound paint before applying stain blocker.


STIR WELL BEFORE USE.  Apply liberally and evenly with a synthetic brush or roller. One coat is recommended but a second coat can be applied if staining is severe. MGC Quick Drying Stain Block is touch dry in 30 minutes in well ventilated good drying conditions depending on temperature and humidity.

Re-coat after 2 hours if necessary.

Coverage is approximately 12 sq metres per litre per coat, depending on absorbency of the surface.

For Trade purchase please call our Sales Office Number 01372 743334