R-FlexAd:
This liquid polymer additive may be added to VBM bonding mortars to increase the polymer modification of the mortar being added to. This increases bond strengths and gives the installed units a slight flexural strength improvement. It may be added to mortar as all of the mixing water or any measured quantity with water, depending on the level of modification required.

R-FlexAd is for applications not exposed to direct sunlight. Best suited for bonding.

Advantages:
Easily increase flexural strength
can replace all or part of mixing water