3M CA40H | Krayden

Main features

Higher-Viscosity Controlled Dispensing
EPDM, Vinyl, and Aluminum Bonding
Alignment-Friendly Slower Set Time

Product Description

3M™ Scotch-Weld™ Instant Adhesive CA40H is a clear, single-component, high-strength cyanoacrylate adhesive designed for room-temperature curing. Formulated as a higher-viscosity and slightly slower-setting alternative to standard CA40, it helps prevent run-off during application while providing extra time for precise part alignment. This adhesive delivers exceptional performance on difficult-to-bond substrates, offering particularly good adhesion to aluminum, EPDM rubber, and flexible vinyl, alongside good resistance to soap solutions and isopropyl alcohol.

Key features

Controlled application: Higher viscosity formulation (400-600 cP) helps prevent adhesive run-off for cleaner, more precise dispensing.
Optimized set time: Slightly slower setting time allows for the proper alignment of parts before handling strength is achieved.
Difficult substrate bonding: Provides strong, reliable bonds to challenging materials such as aluminum, EPDM rubber, and flexible vinyl.

Applications / Suitable for

Bonding difficult-to-bond rubbers, plastics, and metals
Assembling EPDM rubber and flexible vinyl components
Applications requiring resistance to soap solutions and isopropyl alcohol

TDS, SDS & Technical Documents

Technical Specifications

General Properties

Appearance

Clear

Chemistry Type

Ethyl

Specific Gravity

1.05

Thermal Properties

Temperature Resistance

100 ˚C

Physical Properties

Net Weight

87 kg/m3

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties; these values are not intended for use in preparing specifications.

Property	Value	Unit	Method / condition
Base	Ethyl Cyanoacrylate	-	-
Color	Clear	-	-
Specific Gravity	1.05	-	-
Viscosity	400 - 600	cP	-
VOC Content	<= 6	g/L	Less H2O & Exempt Solvents