Products

3M™ Scotch-Weld™ Instant Adhesive CA40H

Brand: 3M™ Scotch-Weld™
Package Sizes: 0.45 kg, 29.57 ml
Shelf Life: 15 months

Product Description

3M™ Scotch-Weld™ Instant Adhesive CA40H is a high-strength, high-viscosity cyanoacrylate adhesive, formulated for bonding difficult-to-bond substrates, including aluminum, EPDM rubber, and flexible vinyl. It is a slower setting version of CA40, providing additional time for proper alignment of bonded parts. This adhesive exhibits good resistance to soap solutions and isopropyl alcohol, and its high viscosity prevents runoff during application.


Key Features

  • One-component, high-strength adhesive – cures at room temperature
  • High viscosity – prevents runoff, allowing precise application
  • Slower set time – enables proper alignment of parts before full cure
  • Excellent adhesion – bonds metals, rubbers, and plastics effectively
  • Good chemical resistance – withstands soap solutions and isopropyl alcohol
  • Economical to use – only requires a small amount to achieve strong bonds

Recommended Applications

  • Bonding aluminum, EPDM rubber, and flexible vinyl
  • Small joint assembly requiring extra alignment time
  • Adhesion for high-precision industrial applications
  • Applications needing chemical resistance to soap solutions and alcohol

Technical Data

Typical Uncured Physical Properties

Attribute Name Value
Color Clear¹
Viscosity 400 – 600 cP
Net Weight 8.7 lb/gal
Base Ethyl Cyanoacrylate

¹ Color may vary from nearly white to yellow/amber without affecting adhesive performance.


Typical Cured Physical Properties

Attribute Name Value
Handling Strength Time 5 – 40 seconds
Specific Gravity 1.05 g/mL

Typical Performance Characteristics

Attribute Name Value
Long-Term Temperature Resistance 100°C (212°F)
Minimum Long-Term Temperature Resistance -54°C (-65°F)

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