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3M CA40H Instant Adhesive for Rubber Plastic Metal and Aluminum Bonding
| Item | Specification |
|---|---|
| Brand | 3M |
| Product Name | 3M™ Scotch-Weld™ Instant Adhesive CA40H |
| Common Name | 3M CA40H / 3M Scotch-Weld CA40H |
| Product Type | Instant Adhesive / Cyanoacrylate Adhesive |
| Color | Clear |
| Components | 1-Part |
| Base | Ethyl Cyanoacrylate |
| Viscosity | 400–600 cP |
| Specific Gravity | 1.05 g/mL |
| Net Weight | 8.7 lb/gal |
| Time to Handling Strength | 5–40 seconds |
| Full Cure Reference | 24 hours |
| Long Term Temperature Resistance | -54°C to 100°C |
| Main Substrates | Aluminum, EPDM rubber, flexible vinyl, plastics, rubbers, metals |
| Key Features | High viscosity, less run off, better void filling, high strength, impact resistance |
| Storage | Refrigerated at 0–4°C, do not freeze |
| Shelf Life | 15 months from manufacture date |
3M CA40H Instant Adhesive Overview
3M CA40H Instant Adhesive is a professional one-part cyanoacrylate adhesive designed for fast bonding, high strength and controlled application. It is part of the 3M Scotch-Weld instant adhesive family and is commonly used for bonding rubber, plastic, metal, aluminum, EPDM rubber and flexible vinyl. For manufacturers and repair users who need a fast setting adhesive with better void filling capability than lower viscosity instant glues, 3M CA40H provides a practical and reliable bonding solution.
This product is also known as 3M Scotch-Weld Instant Adhesive CA40H, 3M CA40H cyanoacrylate adhesive, or 3M CA40H super glue. It is a higher viscosity and slightly slower setting version of 3M CA40, which allows more controlled application and gives users additional time for part alignment. The clear adhesive is easy to apply from the bottle and can be used when a precise drop or steady bead is required.
Key Features of 3M CA40H Instant Adhesive
High Viscosity for Controlled Application
One of the main advantages of 3M CA40H Instant Adhesive is its high viscosity. Compared with lower viscosity instant adhesives, CA40H helps reduce run off during application and provides better void filling capability. This is useful when bonding small joints, uneven surfaces, vertical surfaces or parts that require more controlled adhesive placement. The higher viscosity also helps improve handling during assembly and repair work.
Fast Handling Strength
3M CA40H Instant Adhesive is designed to reach handling strength quickly at room temperature. This helps improve production efficiency and reduces waiting time compared with slower curing adhesives. The adhesive cures in the presence of moisture on the bonding surface and can create a strong bond within seconds. This makes it suitable for fast assembly, small part bonding, maintenance work and high productivity production environments.
Excellent Adhesion to Difficult Substrates
3M CA40H is suitable for bonding many difficult-to-bond substrates, including aluminum, EPDM rubber and flexible vinyl. It can also bond many plastics, rubbers and metals. This broad substrate compatibility makes it useful for mixed-material assemblies, rubber component bonding, plastic repair, metal attachment and general industrial applications. For users who need a versatile instant adhesive, CA40H is a strong option.
High Strength and Impact Resistance
3M CA40H Instant Adhesive provides high strength and good impact resistance after cure. This makes it useful for assemblies that require durable bonding performance under handling stress, vibration or repeated use. The adhesive is suitable for small joints and precision assemblies where mechanical fasteners are not practical or where a clean bond line is required.
Typical Applications of 3M CA40H Instant Adhesive
3M CA40H Instant Adhesive can be used in many professional bonding applications. Typical uses include gasket attachment, small joint assembly, jewelry assembly, orthopedics, footwear, rubber bonding, plastic bonding, flexible vinyl bonding, aluminum bonding and general industrial repair. It is also suitable for attaching small parts, bonding trim pieces, securing components and assembling lightweight materials.
In rubber and plastic applications, CA40H helps provide fast bonding without the need for heat curing or complex mixing. In metal and aluminum applications, proper surface preparation can help improve bond strength and long-term performance. In small assembly work, the controlled viscosity helps reduce adhesive waste and supports more accurate placement.
How to Use 3M CA40H Instant Adhesive
Before applying 3M CA40H Instant Adhesive, make sure the bonding surfaces are clean, dry and free from oil, dust, grease, mold release agents and other contaminants. For metals such as steel and aluminum, wipe the surface with an oil-free solvent such as acetone or isopropyl alcohol. For plastics and rubber, clean the surface with isopropyl alcohol and allow it to dry completely before bonding.
Apply only a small amount of adhesive to the bonding area. Instant adhesives usually require only a thin layer to create a strong bond. Join the parts immediately and hold them together with light pressure until handling strength is achieved. Avoid using too much adhesive, as excess adhesive may slow curing and create a messy bond line. After use, keep the container tightly closed and store the product according to the recommended conditions.
Why Choose 3M CA40H Instant Adhesive
3M CA40H Instant Adhesive is a reliable choice for users who need a clear, high viscosity instant adhesive for rubber, plastic, metal, aluminum, EPDM and flexible vinyl bonding. It offers controlled application, fast handling strength, better void filling capability, high strength and impact resistance. For buyers searching for 3M CA40H, 3M instant adhesive, cyanoacrylate adhesive, rubber bonding glue, plastic bonding glue, aluminum adhesive or flexible vinyl adhesive, this product provides a professional and efficient bonding solution.
