Permabase Ultra-Backer 1/4 in. x 3 ft. x 5 ft. Cement Board CB23140500

1/4-Inch x 3×5-foot PermaBase Cement Board

• 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

A rigid substrate made of Portland cement, aggregate and glass mesh. It provides a hard, durable surface that is able to withstand prolonged exposure to moisture. An ideal underlayment for ceramic tile on floors, countertops, tub decks and outdoor kitchen counters.