3M 4941 is a gray, 0.045 in (1.1 mm), multi-purpose acrylic adhesive with a conformable, foam core.
It can replace rivets, welds, and screws. The fast and easy-to-use permanent bonding method provides high strength and long-term durability.
It offers design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces
|3M 4941 TDS|
|Foam Density||720 kg/m³|
|Thickness||1.10mm ± 15 %|
|Adhesive Carrier||Acrylic Foam (Closed Cell)|
|Release Liner||Printed Paper|
|Peel Adhesion to|
|Static Shear Strength||1000g @ 22°C
500g @ 70°C
|Temperature Performance （short time)||150 °C|
|Temperature Performance （Long time)||93 °C|
The conformable nature of the acrylic foam core allows for good 'wetting out of the adhesive to the glass surface thus providing good adhesive-to-surface contact.
Also, good contact eliminates unsightly air bubbles. Primers might be appropriate when bonding such systems.
It has also been found excellent when bonding to relatively irregular surfaces such as grained wood. (Care must be taken to provide a good unified surface through priming.)
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