KEWEIYOW Heavy Duty Metal Glue 1.76 oz — Waterproof High-Temp Epoxy Repair Kit, Bonds Metal & Plastic

KEWEIYOW Heavy Duty Metal Glue is a two-part, waterproof epoxy repair kit that bonds metals, plastics, ceramics and more, curing to a high-strength, high-temperature resistant solid in 24 hours.

Whether you're fixing a cracked muffler, patching a radiator leak, or rebuilding a broken plastic bracket, this 1.76 oz liquid-weld kit provides a fast-setting, heavy-duty adhesive that replaces or supplements traditional welding for many small repairs. The syringe contains a 1:1 resin and hardener ratio and includes a pusher and scraper so you can measure, mix and apply with minimal mess. Once cured the compound can be sanded, drilled and painted, making it useful for permanent, functional repairs and cosmetic touch-ups.

How fast does this epoxy set and how long until it reaches full strength?

The KEWEIYOW epoxy begins to set in about five minutes and reaches practical handling strength quickly, with full cure achieved in approximately 24 hours at room temperature. Cure time may vary with temperature, humidity and the amount applied; thicker layers can take longer to stiffen.

• Initial set: ~5 minutes for tack and shaping
• Functional handling: within a few hours for small repairs
• Full cure: about 24 hours for maximum strength
• Can be sanded, drilled and painted after full cure

What materials and environments can this repair kit handle?

This heavy-duty formula adheres to a wide variety of substrates including steel, aluminum, stainless steel, plastics, ceramics, fiberglass and glass. It’s engineered for durability: resistant to oils, many chemicals, impact and high temperatures, making it suitable for automotive, marine and household repairs.

• Compatible with metals, PVC, fiberglass, ceramics and many plastics
• Temperature stability from -65°F to 548°F (-54°C to 287°C)
• Good oil and chemical resistance for engine and outdoor use
• Curing strength up to about 4680 PSI for load-bearing repairs

How do I apply the kit for a reliable repair?

Prepare surfaces by cleaning and roughening for better adhesion, then dispense equal parts of resin and hardener from the 1:1 syringe onto a flat surface. Mix thoroughly for about five minutes using the included stirrer, apply with the scraper, position parts and allow to rest undisturbed while the epoxy cures.

• Clean and degrease surfaces before bonding
• Dispense equal volumes from the syringe (1:1 ratio)
• Mix thoroughly for ~5 minutes for uniform cure
• Clamp or support parts and wait 24 hours for full cure

What practical repairs can this kit replace or simplify?

The KEWEIYOW metal glue is designed to repair or patch items where welding or replacement would be costly or impractical. It’s commonly used for automotive bodywork, muffler patches, cracked plastic housings, broken ceramic fixtures and small marine or plumbing fixes.

• Patch mufflers, fuel tanks, radiators and exhaust components
• Repair cracked bumpers, headlight brackets and motorcycle fairings
• Bond broken ceramics, vases, concrete chips and glass
• Rebuild or fill missing metal sections on DIY projects

Who is this for: KEWEIYOW Heavy Duty Metal Glue is aimed at DIY mechanics, boat owners, home repairers and hobbyists who need a compact, all-purpose epoxy capable of high-temperature, high-strength repairs without specialized welding equipment. It’s also a practical kit for workshops and garages that want a portable, versatile adhesive for emergency fixes, restoration work and everyday maintenance tasks.