Pentra-Pel (SI)


Pentra-Pel (SI) is a penetrating lithium stain guard designed for interior or exterior concrete, stone and masonry surfaces. This product creates a protective barrier that resists staining. It densifies, seals, and repels while maintaing breathability and doesn’t alter the appearance of the substrate. Pentra-Pel (SI) is easy to use and is VOC compliant.

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  • Provides a protective barrier that resists staining
  • Hardens, densifies and seals
  • Uses patented Silicone Reactive Lithium chemistry (Sir®Li)
  • Creates an abrasion resistant surface
  • Protects polished concrete without forming a film
  • Helps prevent freeze-thaw damage
  • Repels water, oil and stains
  • Preserves natural look of the substrate
  • Performs well on natural stone
  • Breathable: allows interior moisture to escape without damaging sealer
  • VOC compliant, may contribute to LEED points (IEQ credit)
  • Extremely hydrophobic formulation
  • Water-based formula


Application Method Sprayer and microfiber pad
Color Opaque, dries clear
Coverage Rate Polished concrete: 800-1000 ft² per gallon (19.6-24.5 m² per liter)
Machine-troweled: 600-800 ft² per gallon (14.7-19.6 m² per liter)
Broom-finished: 250-350 ft² per gallon (6.1-8.6 m² per liter)
Film-Forming No
Form Liquid
Freeze Point 32 ºF (0 ºC)
Odor Slight to none
pH 11-12
Shelf Life Part A: 1 year in unopened, sealed container
Part B: 1 year in unopened, sealed container
Once mixed, use within one week
Specific Gravity 1.01
Total Solids 13.1%
VOC Content <50g/L
Size Part No. Full Pallet Qty
1 Gallon Jug CCT-090-1 126
5 Gallon Pail CCT-090-5 35
55 Gallon Drum CCT-090-55 4
275 Gallon Tote CCT-090-275 1

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