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Adhesives Technology Convergent Pentra-Sil (C&N) 5 Gallon Pail
Cleans and neutralizes concrete surfaces that suffer from efflorescence, surface sweating, and other alkalinity problems by infusing lithium ions into the substrate. These ions neutralize the effect of excessive sodium, potassium and other alkalinity, reducing the formation of alkaline salts and sweating.
- VOC Compliant
- Stabilizes concrete surfaces
- Prevents efflorescence
$184.47
SKU
20083
Convergent Pentra-Sil C&N – 5 Gallon Pail
Pentra-Sil C&N is a concrete cleaner and neutralizer that infuses lithium ions into the surface to stabilize alkalinity. It helps prevent efflorescence and surface sweating, lifts fine particles that dull polished floors, and leaves a breathable, clear finish. For severe symptoms, treat with Pentra-Sil C&N and follow with Pentra-Sil AC per manufacturer guidance.
Key Features
- Cleans and neutralizes concrete surfaces affected by alkalinity.
- Helps prevent efflorescence and sweating on interior or exterior slabs.
- Removes fine dust that reduces floor clarity and shine.
- Breathable, VOC compliant; dries clear.
- Simple spray application; scrub-in and rinse.
- May contribute to LEED IEQ credits (low VOC).
Applications
- Retail, schools, offices, healthcare, and public common areas.
- Warehouses, manufacturing, distribution centers, and mechanical rooms.
- Parking garages, sidewalks, driveways, loading docks, and lobbies.
- Airplane hangars, auto dealerships, fire stations, and stadiums.
- Food and beverage, pharmaceutical, chemical, wastewater, and cold storage facilities.
Technical Specifications
| Packaging (this item) | 5 gal pail (also available in 1 gal, 55 gal drum, and 275 gal tote) |
| Appearance / Odor | Opaque liquid; dries clear; slight to no odor |
| Total Solids / VOC | 5.8% solids; VOC < 50 g/L |
| pH / Specific Gravity | pH 5–6; specific gravity 1.07 |
| Estimated Coverage | Machine-troweled: 400–550 ft²/gal; broom-finished: 250–350 ft²/gal (substrate dependent) |
| Application Conditions | Apply when temperatures remain above 40°F for at least 2 hours after application |
| Application Method | Spray evenly; keep surface wet with product for ~20 minutes; scrub with auto-scrubber or stiff broom to enhance penetration; rinse and remove all residue with clean water |
| Cleanup | Soap and water |
| Shelf Life / Freeze Point | 1 year unopened; freeze point 32°F |
| Limitations | Not for plastic concrete or resin-based terrazzo mixes; will not bridge cracks or repair unsound surfaces; not for asphalt or painted substrates |
| Follow-Up Treatment | For difficult efflorescence/sweating issues, use Pentra-Sil AC after Pentra-Sil C&N |
Frequently Asked Questions
What problems does Pentra-Sil C&N address?
It stabilizes surface alkalinity to help prevent efflorescence, sweating, and related dusting that reduce floor clarity.
How is it applied?
Spray uniformly, keep the surface wet with product for about 20 minutes, scrub to drive it in, then rinse and remove all residue with clean water. The surface is ready for use when dry.
What coverage should I plan for?
Expect 400–550 ft²/gal on tight, machine-troweled concrete and 250–350 ft²/gal on broom-finished surfaces. Porosity and conditions affect actual rate.
Is it low VOC and breathable?
Yes. It is VOC compliant (below 50 g/L) and dries to a clear, breathable finish.
Can it fix cracks or unsound concrete?
No. It will not bridge cracks or correct honeycombed/unsound areas. Perform necessary repairs prior to treatment.
When should I use Pentra-Sil AC?
For persistent or severe alkalinity symptoms, apply Pentra-Sil AC after C&N as a follow-up treatment.
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