Best-CA 221

low viscous, high strength, temperature resistant, for bonding of rubber, EPDM, viton, metals/synthetic materials
Strength class: high strength
Curing system: humidity
Viscosity: 100
Chemical type: ethyl-cyanoacrylate
Final Strength: 20 hours
Fixture Time: 5 - 10 seconds
Appearance:

BEST-CA 221 is a one-component, solvent free cyanoacrylate adhesive based on ethyl-cyanoacrylate. 

BEST-CA 212 is the standard product for bonding of plastics, e.g. polyamide, PVC, PMMA and various elastomeres, e.g. rubber, EPDM and viton amongst each other and with metals and wood. 

BEST-CA 221 is very fast cure. After full cure the adhesive is high strength and temperature resistant. 

BEST-CA 221 is ready-to-use and can be applied from the original container. 

BEST-CA 221 is applied spot-wise or bead like. Assemble parts by using short, firm pressure. Curing process starts within seconds. On most materials fixture time is reached within 5 to 10 seconds. 85 % of final cure is reached after 30 minutes, 100% after 20 hours. The rate of cure depends on the ambient relative humidity. A relative humidity of 40 to 60% will lead to best results. Lower values may delay cure. 

Bonding surfaces must be dry, free of dust and grease as well as other contaminants. Sand-blasting, grinding and staining bonding surfaces will enhance adhesion on bonding surfaces.

CHEMICAL AND ENVIRONMENTAL RESISTANCE

BEST-CA adhesives show good resistance to changing climatic conditions and chemical influences.

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