3M RT300B, RT3500B User Manual
3
Scotch-Weld
™
Rubber Toughened Instant Adhesiv es
RT300B•RT3500B
Product Description
3M™ Scotch-Weld™ Rubber Toughened Instant Adhesives are formulated with
a unique elastomer that maximizes impact, vibration, peel, and thermal cycling
resistance while providing tough flexible bonds. These adhesives are ideally suited
for bonding flexible substrates and dissimilar materials.
Technical Data May, 2011
Specific Featur es
• 3M™ Scotch-Weld™ Rubber Toughened Instant Adhesive RT300B (formerly
PR80) is a medium viscosity black, rubber toughened cyanoacrylate.
• 3M™ Scotch-Weld™ Rubber Toughened Instant Adhesive RT3500B (formerly
PR10) is a high viscosity, black, rubber toughened cyanoacrylate. It is formulated
to provide a more flexible bond than standard cyanoacrylates and has good gapfilling capabilities.
3M™Scotch-Weld
™
Rubber Toughened Instant Adhesives
RT300B • RT3500B
- 2 -
Typical Uncured
Physical Properties
Note: The following technical information and data should be considered representativ e or
typical only and should not be used for specification purposes.
3M™ Scotch-Weld™ Rubber Toughened Instant Adhesives
RT300B RT3500B
Color Black Black
Base Ethyl Hybrid Ethyl Hybrid
Appearance Liquid Liquid
Specific Gravity (g/ml) 1.1 1.1
Viscosity (cps) 300 - 1,000
3
1,000 - 3,000
1
5,000 - 10,000
2
Time to Handling Strength (sec) 20 - 50 20 - 90
Full Cure Time (hr) 24 24
1
Brookfield RVT, #3 spindle @ 20 rpm.
2
Brookfield RVT, #3 spindle @ 2.5 rpm.
3
Brookfield LFT, #2 spindle.
Typical Cured
Properties
Note: The following technical information and data should be considered representativ e or
typical only and should not be used for specification purposes.
3M™ Scotch-Weld™ Rubber Toughened Instant Adhesives
RT300B RT3500B
Continuous Temperature Range (°F) -65 to 200 -65 to 200
Intermittent Temperature Range (°F) -65 to 250 -65 to 250
Gap Fill (in) 0.004 0.008
Overlap Shear Strength (psi)
4
1,500 1,300
4
ASTM D1002 (grit-blasted steel).
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