Concrete (Pre-Mixed)

Mixflex is premium quality, ultimate performance, sag/slump-resistant medium–bed and thin set mortar. High unique polymer content that provides unparalleled and ultimate bond strength and flexibility for the most demanding installation requirements for commercial, residential and industrial, exterior and interior, freeze/thaw, water-submerged and pools and heavy-traffic durabilitily

A liquid that improves adhesion of Type S mortar to existing concrete (i.e. overlay on concrete pad).
Can also be used a a bond coat on a for surface before mortar application