GoBoard® Pro Sealant is a premium, moisture-curing sealant designed specifically for contractors and professional tile installers who require durable, long-lasting adhesion and waterproofing. This low-odor, environmentally friendly sealant bonds securely to GoBoard® panels, ceramic tile substrates, and a variety of building materials, ensuring reliable flexibility and waterproof protection for both interior and exterior tile installation projects.
Key Features & Benefits of GoBoard® Pro Sealant
- Easy Dispensing & Compatibility: Fits standard caulk guns and performs consistently across wide temperature ranges for hassle-free jobsite use.
- No Sag Formula: Stays put on vertical and horizontal surfaces without dripping, ensuring clean, precise application.
- Dual-Function Sealant & Adhesive: Ideal for bonding GoBoard® panels and sealing joints on tile backer boards for interior and exterior use.
- Fast Skin Over Time: Enables same-day tile installation, accelerating project completion timelines.
- Flexible Joint Movement: Accommodates up to 25% joint movement, adapting to building shifts and thermal expansion.
- Weather & UV Resistant: Durable sealant that withstands long-term exposure to weather, UV rays, and temperature extremes up to 250°F.
- Broad Material Adhesion: Bonds well to metals, plastics, concrete, wood, foam, and ceramic substrates.
- Eco-Friendly & Safe: Non-toxic, solvent-free, non-yellowing, non-corrosive, and compliant with VOC regulations.
- Certified Professional Quality: Meets ASTM C920 standards for sealants, assuring trusted performance on tile installation projects.
Technical Specifications
| Specification | Details |
|---|---|
| Color | White |
| Solids | 100% |
| Density | 13.4 lbs/gal |
| Extrusion Rate (ASTM C1183) | 110 g/min |
| Tack Free Time (@77˚F/50% RH) | 15 minutes |
| Allowable Joint Movement (ASTM C719) | 25% |
| Hardness, Shore A (C661) | 55 |
| Tensile Strength (D412) | TB 1.98 MPa / EB 250% |
| 24 Hour Cure Depth (77°F/50% RH) | 3 mm |
| UV-A Rating (G53) | 10,000 hours |
| Temperature Resistance | 250°F |
| Volume | 20 oz / 591.5 ml |
Application Tips for Tile Installers
For effective waterproofing during tile installations, apply GoBoard® Pro Sealant generously to all joints and fastener penetrations. Ensure no gaps or pinholes, maintain 1/8” spacing between panels, and spread sealant at least 1 inch beyond the joints to create a fully watertight surface ready for tile setting.
Warranty and Quality Assurance
Johns Manville guarantees GoBoard® Pro Sealant meets all stated performance specifications when used as directed in GoBoard® panel installations, giving professionals peace of mind on every project.
Choose GoBoard® Pro Sealant for a trusted, flexible, and environmentally responsible sealant solution. Order now to protect your tile and building projects with professional-grade waterproofing and adhesion.
