Description
ROBERTS 6399 Firm Set is a premium, aggressive, transitional pressure-sensitive acrylic adhesive specifically engineered for high-performance interior installations of resilient flooring. Ideal for challenging commercial and residential environments experiencing heavy foot traffic and demanding rolling loads, this adhesive offers exceptional shear strength and high lateral resistance. It installs with the rapid, high-tack grab of a pressure-sensitive adhesive, transitioning into a rigid, permanent bond as it cures to securely lock flooring into place.
- Versatile Material Compatibility: Specifically designed for Luxury Vinyl Tile (LVT), Luxury Vinyl Plank (LVP), Vinyl Composition Tile (VCT), vinyl sheet goods, vinyl-backed carpet tiles, fiberglass-reinforced sheet vinyl, rubber or vinyl stair treads, and carpet cushion-to-substrate bonding.
- Advanced Substrate Versatility: Formulated for interior application over concrete, primed gypsum underlayments, cement backerboards, fiber-cement underlayments, APA-grade plywood, OSB, properly prepared ceramic tile, terrazzo, and radiant-heated floors (not exceeding 85°F / 30°C).
- Microban® Antimicrobial Protection: Infused with built-in antimicrobial product protection to fight the growth of stain- and odor-causing bacteria, actively preventing premature product degradation.
- Industry-Certified Eco-Profile: Proudly FloorScore and CRI (Carpet and Rug Institute) Green Label Plus Certified. Features a near-zero VOC formula (< 1 g/L) and ultra-low odor profile for safer indoor air quality.
- Superior Moisture Control: Provides advanced moisture protection, rated for up to 99% RH and a Moisture Vapor Emission Rate (MVER) of 12 lbs. Dries completely clear and cleans up effortlessly.
SPECIFICATIONS
| Brand | ROBERTS |
|---|---|
| Product Type | Resilient Flooring & Carpet Tile Adhesive |
| Collection Name | 6399 Firm Set Transitional Pressure Sensitive Adhesive |
| Chemical Base | Acrylic Pressure-Sensitive Adhesive (PSA) |
| Approximate Coverage | Up to 350 sq.ft per Gallon (dependent on substrate porosity, trowel selection, or roller application) |
| Application Windows |
Pressure-Sensitive Method: 60-Min Open Time | 12-Hour Working Time Semi-Wet Method: 20-Min Open Time | 40-Min Working Time |
| Cure Time | 24 – 48 Hours |
| Environment & Safety | VOC Compliant (< 1 g/L) | FloorScore Certified | CRI Certified | Low Odor | Indoor Use Only |
| Storage & Stability | 2-Year Shelf Life (unopened container). Freeze-Thaw Stable down to 20°F (-6.7°C); protect from freezing. |
| Volume / Packaging | 1 U.S. Gallon (3.79 Liters) |
| Logistical Layout | 4.00 Units per Pack | 120.00 Units per Skid |
| Warranty Coverage | Adhesive Bond: Limited Lifetime (when installed by a Certified Flooring Professional) or Limited 10-Year Standard Warranty |
DOCUMENTATION
-
📄 Technical Data Sheet 6399 Firm Set Transitional Pressure Sensitive Adhesive (English) – 2025
-
📄 Safety Data Sheet 6399 Firm Set Transitional Pressure Sensitive Adhesive (English) – 2025
-
📄 Warranty Document Roberts Adhesive Bond Warranty Program – North America (English) – 2025
-
📄 Roberts Adh6399 3.78lt Data Sheet (English Alternative)
-
📄 Roberts Adh6399 3.78lt Safety Data Sheet (English Alternative)
-
📄 Roberts Adh6399 3.78lt Warranty (English Alternative)
-
📄 Warranty Document Adhesive Bond (English Standard)
-
📄 Fiche Technique 6399 Adhésif de transition à prise rapide sensible à la pression (Français) – 2025
-
📄 Feuillet de sécurité 6399 Adhésif de transition à prise rapide sensible à la pression (Français) – 2025
-
📄 Document de garantie Sur l’efficacité des adhésifs Roberts – Amérique du Nord (Français) – 2025
-
📄 Roberts Adh6399 3.78lt Fiche de données (Français Alternative)
-
📄 Roberts Adh6399 3.78lt Fiche de données de sécurité (Français Alternative)
-
📄 Roberts Adh6399 3.78lt Garantie (Français Alternative)
*Please refer to the manufacturer website for the most updated product documentation.

