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Adhesives Technology Convergent Pentra-Sil (AC) 5 Gallon Pail
Designed for use on sweating, efflorescing or high pH surfaces. This unique product neutralizes the surface and reduces sweating and vapor drive that carries alkaline salts to the surface of the concrete.
- Reduces sweating
- VOC compliant
- Densifies and hardens the surface
$204.24
Convergent Pentra-Sil (AC) Alkalinity Control Densifier 5 Gallon
Pentra-Sil (AC) is a lithium-based alkalinity control treatment that neutralizes high-pH surfaces, reduces sweating and efflorescence, and densifies the concrete. It is often used after Pentra-Sil (C&N) for severe cases of slab sweating.
Key Features
- Neutralizes surface alkalinity and reduces pH-related problems.
- Reduces sweating, efflorescence, and vapor drive of alkaline salts.
- Densifies and hardens the surface to improve abrasion resistance.
- Uses patented Nano-Lithium technology.
- VOC compliant.
- Breathable formula that does not trap moisture.
Applications
- Sweating slabs and floors with high pH or efflorescence.
- Pre-treatment before coatings or adhesives sensitive to alkalinity.
- Concrete floors requiring both alkalinity control and densification.
- Two-step system with Pentra-Sil (C&N) for severe cases.
Technical Specifications
| Property | Value |
|---|---|
| Form | Liquid (opaque, dries clear) |
| Packaging | 5 gallon pail |
| Coverage (machine-troweled) | 400–550 ft² per gallon |
| Coverage (broom-finished) | 250–350 ft² per gallon |
| Total Solids | Approximately 7.4% |
| pH | 11–12 |
| VOC Content | <50 g/L |
| Shelf Life | 1 year in unopened container |
Product documents: Pentra-Sil (AC) Technical Data Sheet (PDF)
Frequently Asked Questions
When should Pentra-Sil (AC) be used?
Use it on sweating slabs, floors with visible efflorescence, or high-pH surfaces that cause coating or adhesive problems. For severe cases, apply Pentra-Sil (C&N) first, then (AC).
Does it densify the surface?
Yes. In addition to alkalinity control, the lithium silicate component densifies and hardens the concrete.
Will it trap moisture?
No. It is a breathable treatment that does not form a film that traps moisture vapor.
What coverage is typical?
Machine-troweled: 400–550 ft² per gallon. Broom-finished: 250–350 ft² per gallon.
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