Roberts 6399 Firm Set Transitional 4 Gallon

In Store pick up only - No Shipping Availiable

High-performance adhesive for resilient flooring and carpet tile installations - 4 Gallon

ROBERTS 6399 is a professional-grade, acrylic pressure-sensitive adhesive designed for demanding installations of LVT, LVP, VCT, vinyl sheet goods, carpet tile (vinyl-backed), carpet cushion, and rubber or vinyl stair treads. Engineered for high-traffic environments, it delivers aggressive tack, superior shear strength, and exceptional resistance to lateral movement and rolling loads.

This adhesive installs like a pressure-sensitive product and transitions to a firm-set bond as it cures—providing long-term durability and peace of mind. Powered by Microban® antimicrobial technology, it helps protect against odor- and stain-causing bacteria that can degrade product performance over time.

Key Features:

• Dual-installation flexibility: Use as pressure-sensitive (60 min open time, 12-hour working time) or semi-wet (20 min open time, 40 min working time)

• Low odor, low VOC: Less than 1g/L for healthier indoor air quality

• Moisture-tolerant: Up to 99% RH and 12 lbs MVER

• High-tack & firm-set: Excellent bond strength for heavy traffic and rolling loads

• Microban® protection: Fights bacteria that cause stains, odors, and degradation

• Versatile substrate compatibility: Concrete, primed gypsum, cement backerboard, APA-grade plywood, OSB, properly prepared ceramic tile, terrazzo, and radiant-heated floors (≤85°F)

• Coverage: Up to 350 sq. ft. per gallon depending on application method

• Certifications: FloorScore® and CRI Green Label Plus Certified

• Warranty: 10-year limited bond warranty; limited lifetime warranty for certified professional installations