SciGrip® Weld-On® #4 Adhesive

SciGrip® Weld-On® #4 Adhesive is a fast-setting solvent cement designed for bonding acrylic and similar plastics in fabrication applications requiring clean, clear joints and precise assembly. This water-thin adhesive is commonly used for signage, display fabrication, and plastic assembly where capillary action and seamless bonding are important.

This material features a water-thin solvent cement formulation that works through capillary action, allowing it to flow into tight-fitting joints and create strong, clear bonds within minutes. Compared to Weld-On® 3, it offers a slightly slower set time, reducing the risk of blushing (white marks) and improving overall bond clarity and strength development. Weld-On® 4 is ideal for bonding cast and extruded acrylic, providing clean, nearly invisible joints while achieving increased strength over several hours.

Weld-On® 4 is commonly used for acrylic fabrication, display cases, signage assembly, and precision bonding applications where clarity, control, and clean finishes are required.

Specifications

Brand: SCIGRIP
Product: Weld-On® 4 Solvent Cement
Type: Water-Thin Solvent Cement
Color: Clear
Set Time: Fast Initial Set (Minutes)
Cure Time: Strength Builds Over Several Hours
Application Method: Capillary Action
Features: Clear Bonds, Reduced Blushing, Precision Application
Compatibility: Acrylic (Cast & Extruded), Similar Plastics
Applications: Acrylic Fabrication, Display Cases, Signage, Precision Bonding