Henry 542 Liquid BackerBoard is a Portland cement based self-leveling underlayment. It is the fastest and easiest way to prepare wood floor for the installation of ceramic tile. It soothes wood without the need for lath mesh. It can be used over concrete surfaces and radiant heated flooring. Installs up to 70% faster over plywood compared to other products. Lowers the install cost with the coverage the product provides as well as the no need to lay metal lath. Covers 52 sq. ft. at 1/8\". Bonds well to plywood， concrete， existing tile， and even gypsum substrates. May also be used on vinyl， wood and laminate. Excellent flow， longer working times and better healing then competitive products. Just mix and spread. Entire installation may be done standing rather than on your hands and knees. You have a 10 minute working time and may walk on in 3 hours. In just 6 hours you may install tile. Pour up to 1-1/4\" thick neat. Be sure to use primer prior to installing， Henry 554. For indoor use only. Made in the USA.

Installs up to 70% faster over plywood

Does not require metal or plastic lath

10 minute working time

Walkable in 3 hours

Install tile in 6 hours

52 sq. ft. of coverage at 1/8 in. depth

Use over plywood， concrete and existing tile， vinyl， wood and laminate

Use over gypsum substrates!

Just mix & pour

Self levels to repair high spots

Levels traditional backerboard over plywood or cement traditional backer board

Allow your vinyl or final floor presentation to look its best with this self level

Use Primer Henry 554

May be used with heated flooring

Made in USA

Pour up to 1-1/4" thick neat

Zero VOC

Very durable; 3000 PSI compressive strength