3M Super Weatherstrip Adhesive — Black 5 oz Tubes (2-Pack), Fast‑Curing Flexible, Water‑Resistant Seal

3M 08008 Black Super Weatherstrip Adhesive is a fast-curing, flexible glue formulated to securely bond rubber weatherstripping and gaskets to metal and other surfaces for a durable, water-resistant seal.

When you need a dependable bond between rubber seals and vehicle bodywork, this 2-pack of 5 oz tubes delivers a professional-grade solution without specialty tools. The adhesive goes on easily from the tube, spreads smoothly, and cures to a rubbery, flexible joint that stands up to vibration, temperature swings, oils, and detergents. It’s tailored for automotive applications—doors, trunks, sunroofs—but works on many substrates where a resilient, long-lasting connection is required.

How quickly will the adhesive hold rubber weatherstripping in place?

The product begins to set quickly and provides immediate tack so strips stay where you position them, but full cure and peak strength develop within about 24 hours. During this time the bond remains flexible rather than rigid, which helps maintain a consistent seal as parts move or expand.

• Initial tack on contact for easier alignment and fit
• Surface cure time roughly within hours; full cure up to 24 hours
• Remains flexible after curing to accommodate movement

What surfaces does this adhesive bond to effectively?

This formula is designed for strong adhesion to rubber and common automotive materials. It bonds permanently to rubber, vinyl, metal, fabrics, gaskets, and many other seal materials used in vehicle assemblies and small repair projects.

• Excellent for rubber-to-metal weatherstrip attachment
• Works on vinyl and fabric trims as well as gasket materials
• Good oil and water resistance for automotive environments

How do I apply and prepare surfaces for the best results?

Application is simple: squeeze from the tube, spread with a brush or fingertip, and align the weatherstrip. For a reliable bond, clean and dry both surfaces first, remove old adhesive residue, and apply a continuous bead before pressing parts together and holding until initial set.

• Clean surfaces of grease, dirt, and old adhesive for best adhesion
• Apply a continuous, even bead and press firmly to seat the seal
• Allow up to 24 hours for full cure; avoid heavy stress during cure

Will the adhesive stand up to car use and outdoor conditions?

Yes—the cured adhesive is formulated to resist the stresses common to vehicle use, including vibration, heat and cold cycles, and contact with detergents and oils. Its rubbery finish preserves a waterproof, airtight seal without becoming brittle over time.

• Resistant to vibration and temperature extremes
• Repels water and tolerates oils and cleaning agents
• Flexible bond helps maintain a consistent seal through movement

Who this is for: Automotive DIYers, professional mechanics, body shops, and restoration enthusiasts who need a reliable adhesive for weatherstripping and gaskets will appreciate this 3M solution. It’s also useful for anyone repairing or replacing seals on appliances, metal enclosures, and small equipment where a forgiving, water-resistant bond is required. Note: follow label directions and safety guidance when using; California’s Proposition 65 lists certain chemicals that may be present.