OCM Bentoswell Primer is a trowel-grade sodium bentonite-butyl rubber sealant designed for below-grade concrete waterproofing.
It swells upon contact with water, creating a water-tight seal and serving as a detail accessory for use with other waterproofing products.
Key Features
- Easy to apply with no primer or surface preparation required
- Bonds to most substrate materials, including concrete, masonry, wood, and metal
- Expands upon water contact to ensure a secure water-tight seal
- Ideal for flashing around drains, penetrations, terminations, inside corners, and irregular surfaces
Specifications
- Color: Black
- Weight per Gallon: 10.5 lbs
- Solids Content: 80%
- Sag Resistance: No Sag
- VOC Content: 240 g/L
- Unrestricted Swell: 200%
Application Instructions
Ensure surfaces are clean and dry before application. Apply at temperatures above 25°F, and condition the material to a minimum of 40°F prior to use. The material should be applied at a minimum thickness of 1/4”.
Storage and Shelf Life
Store between 40-110°F (4-43°C). When stored as recommended, the shelf life is 12 months.
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