4237 Latex Additive is a specially designed latex additive for use with 211 Powder to make high strength latex thin-setbed up to 1/8" (3 mm) and medium bed up.

• Superior bond strength—250% greater than ANSI A118.4 (American National Standard Specification for Latex Portland Cement Mortar)
• Flexible and shock resistant; rated for extra heavy traffic conditions
• Weather and frost resistant for interior and exterior use in all types of climates
• Proven performance; used in all types of applications for over 50 years
• Safe, economical and easy to use; non-hazardous, non-flammable