3M 7100039255 Scotch-weld Pr Gel Instant Adhesive 20g

Product Description

The 3M 7100039255 Scotch-Weld Plastic Rubber PR Gel is a high-viscosity, cyanoacrylate-based instant adhesive formulated for bonding difficult substrates that standard instant adhesives struggle to grip. The gel consistency resists running on vertical surfaces and provides gap-filling capability, making it well suited for irregular or porous mating surfaces. Supplied in a 20-gram container, it cures clear and is designed for professional assembly, repair, and field-service applications where a fast, strong bond is required on demanding materials.

This adhesive is used across mechanical, HVAC, plumbing, and general trade applications where components made from hard-to-bond plastics or elastomers need a reliable, permanent repair or assembly bond. Common use cases include sealing or bonding EPDM gaskets, nylon fittings, rubber grommets, and plastic housings. Its gel format makes it practical for overhead or angled work where a liquid adhesive would shift before curing.

Key Features

• Very high viscosity gel formula stays in place on vertical and overhead surfaces
• Formulated for difficult-to-bond substrates including EPDM rubber and nylon
• Gap-filling capability accommodates minor surface irregularities
• Cures clear for clean, low-visibility bonds
• 20-gram container sized for job-site and shop use

Compatibility

Designed for bonding plastics and rubber substrates, with documented performance on EPDM and nylon. Suitable for use in assembly and repair applications across HVAC, plumbing, and general mechanical trades.

Installation Notes

Clean and dry both mating surfaces before applying adhesive. Apply sparingly to one surface only, as excess adhesive can slow cure and weaken the bond. Avoid skin contact and work in a well-ventilated area per standard cyanoacrylate handling practices. Follow applicable safety data sheet guidance for storage and disposal.

Technical Specifications

• Net Weight: 20 grams
• Package Weight: 0.2 pounds
• Color: Clear
• Viscosity: Very high (gel)
• UOM: Each
• UPC: 00051115068096

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100039255