Fiberglass mesh tape
For interior and exterior applications
PermaBASE™ Cement Board Tape conceals and reinforces joints between PermaBASE® Cement Board. 2 in. wide polymer-coated (alkali-resistant) fiberglass mesh tape for interior applications and 4 in. wide polymer-coated (alkali-resistant) fiberglass mesh tape for exterior applications. 4" wide tape is recommended for inside and outside corners.
Package Sq. Ft. per roll
- 2" x 50' (15.2 m) Roll - 24 per carton 130
- 2" x 250' (76.2 m) Roll - 24 per carton 665
- 4" x 150' (45.7 m) Roll - 12 per carton 400
*Coverage - Approximately 375 ft. per 1,000 sq. ft. of cement board
Specifications
Products that suit any project criteria
Product Details
Size(s):
2” x 50’, 2” x 250’, 4” x 150’
Coverage:
Approx. 375 ft. per 1,000 sq. ft. of cement board
Tips & Tools
Detailed information to support your next project

PermaBASE Tape & Screws Installation Guide
Detailed instructions for the installation of PermaBASE accessories
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PermaBASE Screw and Tape Estimator
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PermaBASE Building Products Construction Guide
Comprehensive guide to using and installing all PermaBASE products.
ViewFrequently Asked Questions
Ready to answer your product and installation questions
Do I need to treat the joints on PermaBASE products?
All joints and corners must be finished with PermaBASE Cement Board Tape in approved mortars or basecoats.
What do I tape the PermaBASE board joints with?
2” wide alkali-resistant PermaBASE Cement Board Tape for all board joints.
4” wide alkali-resistant PermaBASE Cement Board Tape for inside and outside corners.
4” wide alkali-resistant PermaBASE Cement Board Tape for all exterior applications.

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National Gypsum Company is the exclusive service provider for products manufactured by PermaBASE Building Products, LLC.