WELD-ON 3* is a water-thin, non-flammable cement formulated to quickly develop high strength, clear bonds to many thermoplastic substrates, particularly acrylic. The bond is achieved by first softening the surfaces to be joined and then fusing them together with dissipation of the solvent. The initial bond forms within a few minutes and quickly increases in strength. Substantial strength will be obtained within only a few hours. Under certain conditions, especially with high humidity, a white mark on the plastic (commonly called blushing) may sometimes be encountered. Where a more blush resistant cement and longer open time is required, WELD-ON® 4™ is recommended.
WELD-ON® 3™ is formulated for cementing acrylic (poly-methyl methacrylate) plastic to itself. It will also form strong bonds with other thermoplastics such as polystyrene, CAB (cellulose acetate butyrate), PETG (polyethylene terephthalate glycol) and polycarbonate to themselves. It is not recommended for cross-linked acrylic.
SUGGESTED BONDING APPLICATIONS AND RECOMMENDATIONS:
WELD-ON 3 is used extensively in sign fabrication. Strong butt joints are made with flat sheets by using the soak method for such applications as cementing letters to acrylic panels. Butyrate trim-capping of acrylics is another highly recommended use for WELD-ON 3. It is also widely used in the POP industry (e.g. display), and in the fabrication and bonding of plastic containers, housewares, bottles and many other applications using the capillary method.
Important Shipping Restrictions:
Shipping class: ORM-D
AVAILABLE SHIPPING SERVICE: FedEx Ground ONLY*
This item is a shipping hazard and can only ship via ground delivery within the United States (except Alaska and Hawaii) and Canada.
INSTRUCTIONS FOR CHOOSING A SHIPPING OPTION AT CHECKOUT:
*When selecting a shipping service at checkout, please select ground or home delivery shipping. At checkout please do not choose express saver, 2 day air, standard overnight, priority, or first overnight because we are unable to ship the Weld-On via Air due to federal regulations. We reserve the right to change shipping to ground or home delivery (if it is a residential address) if an "air" shipping method is chosen.
*WELD-ON 3 is not available for use in areas regulated by California’s South Coast Air Quality Management District (SCAQMD) and cannot be purchased by customers in the following California counties: San Bernardino, Los Angeles, Riverside, and Orange County.