10016398

Contact Cyanoacrylate Adhesives have a shelf life of at least 9 months, when stored in unopened condition at room temperature (+18 °C to +25 °C) in a dry and dark space. Temperatures of approx. +5 °C will increase the shelf life to 12 months.

Surface pre-treatment:

• For a flawless adhesive bond, surfaces must be clean and dry (clean and degrease with Surface Cleaner).

• Smooth surfaces should be roughened mechanically.

• To improve the adhesion of plastics difficult to bond (e.g. PE, PP, POM, PTFE), thermoplastic elastomers (TPE) and silicones, CA-Primer can be applied to the bonding surface.

Processing: 

• Apply Contact Cyanoacrylate Adhesive to just one of the bonding surfaces.

• The layer thickness when applying the adhesive should be between min. 0.05 and max. 0.2 mm (depending on the type), as otherwise complete curing cannot be guaranteed.

• For large-surface bondings, Contact Cyanoacrylate Adhesives should be applied in dots in order to prevent inner tensions.

• Contact Cyanoacrylate Adhesives are very economical.

• One drop covers approx. 3 to 5 cm² bonding surface.

• The components should be bonded at a relative air humdity level between 40% and 80%.

• Below 40 %, the curing process is slowed down significantly or even prevented altogether.

• At an air humdity level above 80 % or with strongly basic substrates (e.g. glasses), the risk of shock-curing occurs.

• In these cases, certain materials show a drop in strength by 10 % to 15 % due to tensions in the adhesive layer.

• Alkaline surfaces (pH value >7) accelerate the curing process, acidic surfaces (pH value <7) slow down the curing process and can prevent polymerisation altogether in extreme cases.