Blok-Guard & Graffiti Control WB 6 5 Gallon Unit


Water-based graffiti and water repellent for porous masonry

Blok-Guard & Graffiti Control WB 6 (formerly known as Blok-Guard & Graffiti Control II) is a clear-drying, water-based silicone emulsion designed for weatherproofing concrete block and other porous masonry materials, including brick, unglazed terra cotta, porous tile, concrete, and certain natural stones. It safeguards interior and exterior masonry surfaces from graffiti attacks while preserving their natural appearance.

Product Data Sheet

Safety Data Sheet


  • Graffiti Resistance: Treated surfaces resist penetration of most types of graffiti.
  • Low-Odor Formula: Provides a pleasant application experience.
  • Excellent UV Stability: Maintains effectiveness even under prolonged exposure to sunlight.
  • Simplifies Graffiti Removal: Facilitates easy removal of graffiti markings.
  • Effective on Hard-to-Seal Surfaces: Provides effective protection for surfaces that are difficult to seal.
  • Versatile Application: Suitable for both exterior and interior use.
  • Shrinkage Crack Resistance: Resists water penetration when applied over existing shrinkage cracks of 0.02 inches or less.


  • Shelf Life: 1 year in tightly sealed, unopened container.
  • VOC Content: Less than 20 g/L Low Solids Coating.
  • Formulation: White liquid with a slight odor.
  • pH: Non-applicable.
  • Coverage Rate: 30-175 sq ft/gal. See Product Data Sheet for specific variations per substrate.
  • Freeze Point: 32° F (0° C).
  • Flash Point: Greater than 212° F (Greater than 100° C) ASTM D 3278.
  • Total Solids: 6% ASTM D 2369.
  • Weight per Gallon: 8.32 lbs.

Additional information

Weight 46.6 lbs
Dimensions 1 × 1 × 1 in