BOA HOLD RS 85 Semi Rigid Rapid Set Joint Filler
$38.50
INTENDED USES:
- Fill and Protect Garage and Industrial Floors
- Contraction/Construction Joints
- Fill Random Cracks
- Refill Joints Fillers Separation Voids
ADVANTAGES
- Rapid Gel Time
- 100% Solids, Nn VOC’s
- USDA/FDA/LEED Acceptable
- Description
- Additional information
Description
Fast-Setting, Semi-Rigid Joint Protection for Concrete

The BOA-HOLD RS 85 Semi-Rigid Rapid Set Joint Filler is engineered for fast, reliable concrete joint protection in demanding industrial, commercial, and residential environments. This 100% solids, low-VOC formula delivers rapid gel time and semi-rigid flexibility, allowing concrete movement while maintaining a strong, durable seal.
Key Features & Benefits:
✅ Rapid Gel Time – Quick cure enables faster job completion
✅ 100% Solids Formula – No VOC emissions; USDA, FDA, and LEED acceptable
✅ Semi-Rigid Construction – Balances flexibility with structural integrity
✅ Excellent Adhesion – Forms a permanent bond with concrete surfaces
✅ High Traffic Ready – Withstands forklifts, carts, and heavy equipment
✅ Color-Stable – Maintains appearance over time without fading or discoloration
Ideal Intended Uses:
- Garage & Industrial Floor Joints – Fast-curing protection in high-traffic areas
- Contraction/Construction Joints – Seals and protects expansion points
- Random Crack Filling – Quick repairs for unexpected concrete damage
- Joint Filler Voids & Refills – Restores protection when existing fillers separate or wear
Technical Advantages:
Composition: 100% Solids Polyurea Hybrid
VOC Content: Zero VOC – No harmful emissions
Cure Time: Rapid gel; workable shave window (application-dependent)
Traffic Ready: Typically 24–48 hours for full strength
Certifications: USDA, FDA, and LEED Acceptable
FAQ – BOA-HOLD RS 85 Semi-Rigid Joint Filler
Q: How quickly does BOA-HOLD RS 85 cure?
A: This product features a rapid gel time, allowing you to complete joints faster than traditional epoxies or polyurethanes. Exact cure times depend on temperature and humidity; consult the product data sheet for specific details.
Q: Is BOA-HOLD RS 85 safe for food processing environments?
A: Yes! Being FDA acceptable, this product can be safely used in food and beverage facilities where contact with food products is possible. It meets strict health and safety standards.
Q: Can I use this on horizontal and vertical surfaces?
A: BOA-HOLD RS 85 is designed primarily for horizontal joints and floors. For vertical or overhead applications, consult the product data sheet or contact technical support for guidance.
Q: What’s the difference between BOA-HOLD RS 85 and other joint fillers?
A: The RS 85 combines rapid setting speed, semi-rigid flexibility, zero VOC emissions, and regulatory approvals (USDA/FDA/LEED). It’s ideal for contractors seeking fast turnaround without sacrificing quality or environmental compliance.
Q: How do I apply BOA-HOLD RS 85?
A: Use a standard cartridge gun with a static mixer tip (like the INFINITY MIX 161-230). Dispense material directly into the joint, slightly overfill, and shave flush once partially cured. See product instructions for detailed guidance.
Q: Can I paint or seal over BOA-HOLD RS 85 once cured?
A: Yes, once fully cured, BOA-HOLD RS 85 can be painted or sealed with compatible topcoats. Ensure adequate cure time and clean the surface before applying additional coatings.
Additional information
| Weight | 2 lbs |
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