Detailed Product Description:
Scotch-Weld #2216 B/A is a clear two-part epoxy structural adhesive that attains structural
properties after a room temperature cure. It is formulated to give a combination of
very high peel strength along with excellent shear strength. It is a perfect choice for
bonding dissimilar materials including aluminum, carbon fiber, fiberglass, steel, stainless, etc.
Mix ratio by weight: 5 parts base to 7 parts accelerator.
Mix ratio by volume: 2 parts base to 3 parts accelerator.
Working life (pot life): 90 minutes.
Fixturing time: 8-12 hours
Cure time (full strength): 7 days (at 75ºF)
2 hours (at 150ºF)
30 minutes (at 200ºF)
Coefficient of thermal expansion: 102 ppm/ºC
Recommended bond line thickness: 0.005”
Typical Overlap Shear Strength: 1700 psi (cured 2 hours at 150ºF)
(etched aluminum) 3500 psi (aged 40 days at 300ºF)
Viscosity: 11,000 to 15,000 cps (for resin)
Scotch-Weld #2216 A/B is identical to Scotch-Weld Epoxy Adhesive EC-2216 B/A which is certified for aircraft and aerospace applications. Scotch-Weld #2216 B/A may be used for aircraft and aerospace applications if proper Certificates of Test have been issued and material meets all aircraft manufacturer’s specification requirements.
Can be an eye and skin irritant.
Note that bond strength is only as good as adhesion to the adjoining substrates. Follow manufacturer’s recommendations for surface preparation.
Resin comes packed in 2-ounce tube. Hardener comes packed in 2-ounce tube.