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WR Meadows PENCURE OTC 5 GAL PL 3548005
WR Meadows PENCURE OTC is a dual-action acrylic curing and sealing compound containing silane in a 5 gallon pail. It is intended for fresh, broomed, exterior concrete and goes on in a single coat.
- Forms a curing membrane and reduces water and salt intrusion
- Covers about 150 sq ft per gallon in one coat
- Meets ASTM C309 and AASHTO M 148, Type 1, Class A and B
$390.78
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WR Meadows PENCURE OTC 5 Gallon Pail
WR Meadows PENCURE OTC is a clear, non-yellowing acrylic curing and sealing compound that contains silane, intended for fresh concrete only. It works two ways at the same time: the acrylic forms a membrane that holds moisture for curing, and the silane reacts chemically to reduce the intrusion of water and salts into the concrete. It goes on in a single coat and leaves a low-gloss appearance. This 5 gallon pail covers roughly 750 sq ft.
Key Features
- Dual action: curing membrane plus silane for water and salt resistance
- Single-coat application
- Breathable film lets moisture in cured concrete evaporate
- Clear, non-yellowing membrane with a low-gloss look
- Helps limit hair checking, cracking, dusting, and spalling
Applications
- Fresh, broomed exterior driveways
- Patios and sidewalks
- Parking lots
- Exterior slabs exposed to water and salts
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Acrylic with silane |
| Coverage | About 150 sq ft/gal, single coat |
| Coverage per pail | About 750 sq ft |
| VOC | 331 g/L |
| ASTM C309 | Type 1, Class A and B |
| AASHTO M 148 | Type 1, Class A and B |
| NCHRP Report 244 | Series II; Series IV, Southern Exposure (non-reinforced) |
| VOC compliance | National EPA, LADCO, OTC Phase I |
| Finish | Low gloss |
| Foot traffic | At least 4 hours, 12 hours preferred |
| Application temperature | 50 F and rising to 90 F and falling |
| Sprayer | Chemical-resistant, such as Chapin 19069 stainless; 0.5 GPM fan nozzle at 40 psi |
| Shelf life | 1 year unopened, stored at 40 to 90 F |
| Pack | 5 Gallon Pail (18.9 L) |
| Part number | 3548005 |
Product documents: WR Meadows PENCURE OTC Data Sheet (PDF)
Frequently Asked Questions
What is WR Meadows PENCURE OTC used on?
Fresh, broomed, exterior concrete such as driveways, patios, parking lots, and sidewalks. It is not intended for densely troweled or decorative concrete, dense surfaces like brick or stone, or joints and channels that will receive elastomeric caulk.
How does PENCURE OTC work?
The acrylic forms a membrane that holds moisture for curing, while the silane reacts chemically to reduce the intrusion of water and salts into the concrete.
What coverage does the PENCURE OTC 5 Gallon Pail give?
About 150 sq ft per gallon, or roughly 750 sq ft for this 5 gallon pail. Test a small area first, since finish, texture, and conditions change the rate.
How many coats of PENCURE OTC should be applied?
One. Apply a single coat once all surface water has disappeared and workers will not mar the surface, and never apply additional coats. For more sheen, apply TIAH or TIAH OTC seven days later.
What sprayer does PENCURE OTC need?
A chemical-resistant sprayer, such as the Chapin 19069 stainless steel sprayer, with a fan nozzle delivering 0.5 GPM at 40 psi. The chemicals in PENCURE OTC attack the seals and gaskets in standard sprayers.
What temperature and safety limits apply to PENCURE OTC?
Apply between 50 F and rising and 90 F and falling. It is flammable, and its vapors are heavier than air, so keep it away from flames, ventilate well, and block HVAC ducts. It is for exterior application only.
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