HYDRO-BLOKĀ® Joint Sealant is a polyurethane-based joint sealant used as part of HYDRO-BLOKĀ® waterproofing accessories for sealing seams, joints, and panel connections within shower assemblies. It creates a flexible, watertight bond that supports moisture control in wet-area installations.
The non-sag formulation allows controlled application on vertical and horizontal surfaces, while primerless adhesion supports direct bonding to HYDRO-BLOKĀ® components and compatible construction substrates.
Key Features
- Polyurethane Joint Sealant: Forms a flexible, waterproof seal for seams, joints, and panel connections in shower systems.
- Primerless Adhesion: Bonds directly to HYDRO-BLOKĀ® panels and common construction materials without primer.
- Non-Sag Consistency: Supports clean application on vertical joints and seams.
- Flexible Performance: Elongation of 250% accommodates movement within the assembly.
- Weather-Resistant Formula: Exterior-grade, paintable, and non-yellowing after cure.
- Wide Temperature Tolerance: Applies between 35Ā°F and 110Ā°F with service temperatures from -60Ā°F to 225Ā°F.
- Industry Compliance: Meets ASTM C920 Type S, Grade NS, Class 25, Use NT, M, and A.
Specifications
| Specification | Details |
|---|---|
| Consistency | Non-sag |
| Skin Time | 30ā40 minutes |
| Elongation at Break | 250% |
| Tensile Strength | 200 psi |
| Lap Shear | 250 psi |
| Application Temperature | 35Ā°F to 110Ā°F |
| Service Temperature | -60Ā°F to 225Ā°F |
| Shelf Life | 12 months unopened at 75Ā°F |
HYDRO-BLOKĀ® Joint Sealant is a core waterproofing accessory for creating watertight seams and movement-tolerant joints within HYDRO-BLOKĀ® shower system installations.
