Weld-On #3 Cement, DCM & TCE Free Formula, Gallon, with Applicator Bottle & Needle (Pack of 5)

Weld-On #3 is a fast-setting, water-thin solvent cement designed specifically for bonding acrylic (plexiglass) and other compatible thermoplastics. Formulated without DCM (dichloromethane) or TCE (trichloroethylene), this safer alternative delivers clean, strong, virtually invisible bonds — making it a go-to choice for fabricators who want reliable performance without harsh solvents. The natural, low-viscosity formula flows effortlessly into joints through capillary action, creating a chemical weld that becomes part of the material itself. This pack of five includes both an applicator bottle and needle with each unit, so your team or workshop stays fully equipped across multiple workstations or projects. It's widely used in sign making, display fabrication, aquarium construction, retail fixture assembly, and architectural model building. Whether you're joining sheet acrylic, cementing mitered edges, or assembling clear enclosures, Weld-On #3 produces tight, optically clear seams with minimal setup time. Apply it along the joint line and let capillary action do the work — no clamping pressure required in most applications. Stocked and ships from West Nyack, NY.

• designed for strong, clear bonds on acrylic and compatible plastics, providing professional-grade adhesion while meeting evolving regulatory and workplace safety standards for chemical exposure reduction.
• Bulk Pack Value — Comes as a Pack of 5 full gallons of Weld-On #3 cement, suitable for high-volume fabrication shops, production environments, and continuous assembly operations. Gallon containers reduce downtime from frequent reordering and ensure consistent formula batch-to-batch for repeatable bonding results across large projects.
• Versatile Bonding Applications — Formulated for plastic bonding, fabrication, repair, and assembly across industries including signage, displays, retail fixtures, aquariums, medical devices, aerospace components, and architectural glazing. suitable for acrylic and similar transparent plastics where clarity and bond integrity are critical to finished product quality.
• Easy Fabrication Use — Apply Weld-On #3 with a needle applicator, brush, or flow method for capillary action bonding. The low-viscosity formula wicks into joints quickly, fusing plastic surfaces at a molecular level. Compatible with standard plastic fabrication workflows including mitered joints, butt joints, and edge bonding for clean, clear results.
• Precision Tolerances & Quality — Dimensions held to +/- 0.010" providing consistent, precise fit for fabrication and engineering applications.