WELD-ON® 4 is a water-thin, somewhat flammable cement formulated to quickly develop very clear and high strength bonds for many thermoplastic substrates. The bond is achieved by first softening the surfaces to be joined and then fusing them together with the dissipation of the solvent. The initial bond forms within a matter of minutes and is followed by a significant and continual increase in bond strength over the next several hours. WELD-ON® 4 may be preferred by some plastic fabricators because it is less likely to leave white marks (commonly called blushing). For similar applications but faster setting cement, SCIGRIP® 3 is recommended.
- This product is not for general consumer use. It is an industrial product intended for use by industry. Plastic-Craft Products reserves the right to substitute similar quantity WELD-ON 4SC for WELD-ON 3 or WELD-ON 4 when ordered by an individual consumer.
- This product may not be shipped into Los Angeles, San Bernardino, Orange, or Riverside Counties. Plastic-Craft Products reserves the right to substitute WELD-ON 4SC for WELD-ON 3 or WELD-ON 4 when ordered for delivery to zip codes in those counties.
- WELD-ON® 4 is formulated as a blush-resistant cement for bonding acrylic (poly-methyl methacrylate) to itself
WELD-ON® 4 is used extensively in sign fabrication for cementing acrylic letters to flat acrylic presentation panels and trim-capping of cut out acrylic letters
- WELD-ON® 4 is also widely used in many applications (e.g. fabrication of display and presentation cases, medical equipment assembly, the bonding of plastic containers and pre-forms, and in the manufacture of numerous solvent welded structures and sub-assemblies using the capillary method)