Concrete surface hardening densifier with anti-scale and freeze-thaw protection

Pentra®-Shield is a clear, penetrating, breathable, surfaceapplied liquid that strengthens, protects and hardens concrete and masonry surfaces. Pentra-Shield™ Antiscale treatment helps protect concrete sidewalks, driveways and other concrete and masonry surfaces from freeze-thaw damage caused by moisture saturation within the pore structure of substrates.

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



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Pentra®-Shield is an exterior concrete and masonry surface hardener and densifier that provides freeze-thaw, scaling and spalling protection. This treatment strengthens concrete sidewalks and driveways to minimize damage caused by winter weather. Pentra®-Shield is a penetrating, breathable solution that reduces moisture absorbtion and leaves no surface film or discoloration. This lithium-based solution is VOC compliant and easy to apply.

  • Protects against freeze-thaw cycles and de-icing chemicals
  • Reduces scaling and spalling
  • No surface film to peel or wear off
  • Does not alter the coefficient of friction of the surface
  • Will not discolor or change the substrate surface appearance
  • Reduces porosity and increases strength and durability
  • VOC compliant, may contribute to LEED points (IEQ credit)

Protects Against Freeze-Thaw Damage

Increases Longevity of Concrete Surface

Maintains Existing Surface Profile


Application Method: Sprayer
Color: Green tint, dries clear
Coverage Rate: Broom-finished: 3.7-6.1 m² per liter (150-250 ft² per gallon)
Film-Forming: No
Form: Liquid
Freeze Point: 0ºC (32ºF)
Odor: Slight to none
pH: 11-12
Shelf Life: 1 year in unopened, sealed container
Specific Gravity: 1.06
Total Solids: 10.40%
VOC Content: <50g/L