Pentra®-Guard (EXT)

Exterior Surface Hardening and Protective Clear Coat

Pentra®-Guard (EXT) exterior surface hardening and protective coating is specifically designed
for protecting exterior hardscapes installations from unwanted effects of water and oil penetration, salt efflorescence, and/or dirt and grime build which up can easily distract and diminish their beauty.

20 L Basket
200 L Drum
600 L Tote
1000 L Tote (IBC)



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Pentra®-Guard (EXT) is an eco-friendly, exterior sealer for concrete, masonry and stone surfaces. It seals and protects against dirt, grime, salt and oil damage while enhancing the natural color and shine. This treatment creates a breathable, protective clear coat that is abrasion resistant and will not flake or peel. Pentra®-Guard (EXT) cures quickly and provides a hard, glossy, wet look finish to any exterior cementitious surface. This lithium-based solution is VOC compliant and easy to apply.

  • Enhances the color of concrete, masonry, and stone surfaces
  • Provides premium “wet look” finish
  • Adds durability and protection
  • Rapidly cures with little-to-no-downtime
  • Forms a protective microfilm that is breathable and will not peel or flake
  • Can be reapplied or recoated without stripping
  • Functions as anti-graffiti and stain protection for vertical and horizontal surfaces
  • Reduces maintenance and cleaning costs
  • VOC compliant, may contribute to LEED points (IEQ credit)

Improves Durability and Shine

Enhances Color

UV Stable, Non-Yellowing, No Peeling


Application Method: Sprayer
Color: White, dries clear
Coverage Rate: Machine-troweled: 19.6-24.5 m² per liter (800-1000 ft²); Broom-finished: 7.4-12.3 m² per liter (300-500 ft²)
Film-Forming: Yes
Form: Liquid
Freeze Point: 0ºC (32ºF)
Odor: Slight ammonia-like odor
pH: 11-12
Shelf Life: 1 year in unopened, sealed container
Specific Gravity: 1.08
Total Solids: 29.60%
VOC Content: <50g/L