United States
Finestone Wall Systems

Finestop RA

FINESTOP RA is a one-component fluid-applied vapor permeable air/water-resistive barrier. Waterproof and resilient, it may be spray-, roller-, trowel-, or brush-applied directly to approved wall substrates.

It provides excellent secondary moisture protection behind most wall claddings including EIFS, stucco (slip sheet required), brick, siding and metal panels.


Meets ICC-ES AC212 water-resistive barrier tests   One fully qualified air/water-resistive barrier material for the entire building
Meets requirements of ICC-ES AC 148   Can be used as a flexible flashing in rough openings or through-wall penetrations
Meets ASTM D 1970 Nail Sealability Requirements   Self-sealing
Approved for Finestone Wall Systems   Full system warranty with Finestone EIFS and stucco wall claddings
Liquid-applied, continuously-bonded membrane; eliminates seams, lap joints and staples   Transfers wind loads directly to the substrate
One component, water-based, very low VOC content   Safe for workers and the environment, low odor, easy application
Nonflammable as applied   Promotes workplace safety
Compatible with lightweight, low-cost spray equipment   Fast, easy economical application
No primer required   Single pass application on most substrates