Finestop RA

Finestop RA is a one-component, fluid-applied vapor permeable vertical above gradeair/water-resistive barrier with built-in, low temperature application properties. This resilient, waterproof coating may be applied directly to approved, above-grade wall substrates by sprayer, roller, brush or trowel. It provides excellent secondary moisture protection behind most wall claddings including EIFS, stucco*, brick, siding and metal panels. Finestop RA is listed in ICC ESR-2986.

*A slipsheet is required for stucco claddings.

Advantages
One continuous air/water-resisitve barrier for buildings with multiple claddings (can be used with most code-compliant claddings)
ICC ESR-2986 evaluation report confirms compliance with IBC, IRC and IECC requirements
Approved for projects requiring ABAA specifications and quality assurance
<1% of allowable air leakage tested per ASTM E2357, easily meets air tightness requirements per ASHRAE 189.1 and 90.1 and ABAA
Self sealing performance meets ASTM D1970 nail sealability requirements with and without Sheathing Fabric
One component, easy to apply formulation that meets low VOC requirements in all 50 states
Nonflammable as applied
Will not dry out or crack due to loss of oil/plasticizer over time
Cleans up with water; solvents and citrus based cleaners not required
Low temperature application down to 25°F (-4°C)
Allows for flexible construction scheduling with an 180 day outdoor exposure rating

Uses

For use over the following exterior wall substrates: Poured concrete/unit masonry, ASTM C1177 type sheathings, including DensGlass™or DensElement exterior sheathing (sheathing only), eXP™ sheathing, GlasRoc®sheathing, Securock™ glass-mat sheathing, Weather Defense™ Platinum sheathing, GreenGlass® sheathing; scement-boards (ASTM C1325 Type A Exterior); including PermaBase™ cement-board, Untreated Exposure I or exterior plywood sheathing (grade C-D or better), Untreated Exposure I OSB, Zip Sheathing (sheathing only) FireTreated wood sheathing: Pyro-Guard® and Dricon® plywood and FlameBlock® OSB; gypsum sheathing (ASTM C79/ASTM C1396).

Coverage & Packaging

COVERAGE PER PAIL*

ASTM C1177 TYPE SHEATHING: 450 ft² (41 m²) at 10 mils WFT

CEMENT BOARD: 500 ft² (46 m²) at 10 mils WFT

PLYWOOD: 265 ft² (24 m²) at 20 mils WFT

ORIENTED STRAND BOARD (OSB): 265 ft² (24 m²) at 20 mils WFT

CONCRETE MASONRY UNITS (CMU)

Standard Weight: 265 ft² (24 m²) at 20 mils WFT
Medium Weight: 180 ft² (17 m²) at 20 mils WFT
Light Weight: 125 ft² (12 m²) at 20 mils WFT

POURED CONCRETE: 500 ft² (46 m²) at 10 mils WFT

EMBED SHEATHING FABRIC

SikaWall-9000 Sheathing Fabric 4: 630 ft (192 m)
SikaWall-9000 Sheathing Fabric 6: 420 ft (128 m)
SikaWall-9000 Sheathing Fabric 9: 280 ft (85 m)

*Roll or spray / backroll for optimum coverage rate. Other application methods may provide less coverage. Actual results may vary depending on surface porosity, roughness, moisture uptakes, type of OSB orother factors.