Description
ROBERTS 6399 Firm Set is a premium, acrylic-based transitional pressure-sensitive adhesive engineered for high-performance commercial and residential resilient flooring installations. Specially formulated for Luxury Vinyl Tile (LVT), Luxury Vinyl Plank (LVP), Vinyl Composite Tile (VCT), vinyl sheet goods, and vinyl-backed carpet tiles, it offers an aggressive, high-tack initial grip with exceptional shear strength. It applies with the ease of a traditional pressure-sensitive adhesive but cures into a firm, permanent cross-linked bond that effortlessly withstands lateral forces, heavy foot traffic, and demanding rolling loads.
- Versatile Application Window: Provides exceptional installation flexibility. When used as a pressure-sensitive adhesive (PSA), it delivers a 60-minute open time and a generous 12-hour working window. For semi-wet methods, it offers a 20-minute open time and a 40-minute working time.
- Advanced Moisture Control: Highly moisture-resistant, handling demanding environmental conditions up to 99% RH and a Moisture Vapor Emission Rate (MVER) of 12 lbs.
- Microban® Antimicrobial Protection: Infused with advanced antimicrobial technology to actively fight the growth of stain and odor-causing bacteria, preventing premature product degradation.
- Eco-Conscious & Certified: Proudly FloorScore and CRI Certified with a ultra-low VOC (< 1g/L), low-odor formula that dries completely clear—perfect for sensitive, occupied interior environments.
- Excellent Coverage: Yields high-efficiency coverage up to 350 sq. ft. per gallon depending on substrate porosity, environmental factors, and trowel or roller selection.
SPECIFICATIONS
| Brand | Roberts |
|---|---|
| Collection Name | 6399 Pressure Sensitive Adhesive |
| Product Type | Carpet and Vinyl Adhesive |
| Approved Substrates | Concrete, primed Gypsum, cement backerboard, fiber cement underlayment, APA-grade plywood, OSB, prepared ceramic tile, terrazzo, single-layer VCT/fully adhered sheet vinyl, and radiant-heated floors (≤ 85°F / 30°C). |
| Open & Working Time | PSA: 60 min Open / 12 hr Work | Semi-Wet: 20 min Open / 40 min Work |
| Cure Time | 24 – 48 hours |
| Volume | 15.14 L (4 U.S. Gallons) |
| Environmental & Safety | FloorScore Certified, VOC Compliant (< 1g/L), Antimicrobial (Microban®), Freeze-Thaw Resistant to 20°F (-6.7°C) |
| Usage Environment | Indoor Usage Only (Clearance: false) |
| Packaging Units | 1.00 per Pack | 48.00 per Skid |
| Warranty | Adhesive Bond: Limited Lifetime (when installed by Certified Flooring Pro) or Limited 10 Years |
DOCUMENTATION
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📄 Technical Data Sheet (English) – 2025
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📄 Safety Data Sheet (English) – 2025
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📄 Warranty Program Document (North America) – 2025
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📄 Fiche Technique (Français) – 2025
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📄 Feuillet de Sécurité (Français) – 2025
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📄 Document de Garantie (Français) – 2025
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🔗 Roberts Adh6399 15.1L Legacy Data Sheet
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🔗 Roberts Adh6399 15.1L Ancienne Fiche de Données
*Please refer to the manufacturer website for the most updated product documentation.




