Div 07 · Thermal & Moisture Protection
CFS-SP WB Firestop Joint Spray
H
Hilti · CFS-SP WB
A water-based acrylic firestop joint spray applied by airless sprayer, brush or trowel to seal top-of-wall joints and perimeter gaps.
✓ Verified 2026-08-28
Specs on this page were checked against Hilti CFS-SP WB product data sheet on 2026-08-28.
Specifications
| Movement capability | Up to 50% |
| Flame spread / smoke developed | 15 / 10 |
| Substrates | Concrete, masonry, gypsum, steel |
Certifications & Standards
UL 2079
UL 1479
ASTM E2307
ASTM E1966
Attributes — product claims, not third-party certifications
FM ApprovedWater-based acrylic dispersionMold and mildew resistant
Sustainability
No sustainability metrics on file for this product.