Full definition
A specialized adhesive system designed for cold splicing and repair of conveyor belts in the field, where hot vulcanizing presses are unavailable or downtime must be minimized. A complete cold splice system typically includes: (1) belt conditioner/cleaner — removes surface contaminants and oxidized rubber, (2) primer — promotes adhesion to the buffed rubber surface, (3) two-component cement — the main bonding agent (neoprene or PU base + isocyanate hardener), (4) splice rubber/repair strips — uncured or semi-cured rubber that bonds with the cement, and (5) patches — pre-shaped repair pieces for localized damage. Application: buff damaged area or splice ends to expose fresh rubber, apply conditioner, coat with primer, apply mixed cement in 2-3 thin layers (drying between each), apply splice rubber or patch, press with hand roller/stitcher to remove air, and allow 4-12 hours cure at >15°C. Bond strength: 60-80% of original belt strength. The system must be chemically compatible with the belt cover compound (NR, SBR, EPDM, NBR, or PU). Leading brands: Rema Tip Top (TIP TOP SC 2000/SC 4000 cement + E-40 hardener — the industry standard), Almex, Beltwin, Fenner Dunlop, and ContiTech.