Cement board underlayment is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture.
Product Details
Manufacturer: NATIONAL GYPSUM PROPERTIES
Manufacturer's Part Number: CB23140500
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Product Features
- Homogeneous core has fewer voids and provides a very clean score and snap
- Can be cut using a standard utility knife instead of specialty tools or expensive power tools
- PermaBase® resists the growth of mold and mildew achieving a panel score of 10, the highest score possible, per ASTM D 3273
- 1/4 in PermaBase® can be used for counters and is ideal for applying directly over laminate or other wood surface countertops
- PermaBase® has a lower moisture absorption rate than other backer boards, which ensures an accurate open time and a better bond
- The 1/4 in thickness eliminates the need to modify adjacent thresholds when abutting to carpeting, wood flooring and other common flooring materials
Product Specifications
| Color | Gray |
| Length | 5 ft |
| Material | Plastic |
| Thickness | 1/4 in |
| Width | 3 ft |