Permabond QFS16 Cyanoacrylate Activator

Description

Permabond QFS16 accelerates cyanoacrylate adhesive cure rate to provide a shorter set time. It can be used in a variety of applications but is particularly suited for porous parts, poorly mated parts, wire-tacking applications and applications where stress cracking of plastic could be an issue. It can also be used to cure excess adhesive “fillets”.

Features & Benefits

• Contains no ozone-depleting agent
• Rapid setting on closely mated parts
• Faster cure through gaps
• Enables cyanoacrylates to bond to porous surfaces
• Reduces stress cracking on plastic parts
• No discoloration of part surfaces
• Reduces frosting or fogging of the adhesive
• Allows cyanoacrylates to cure on strongly passivated metals, aged PVC, or acidic surfaces such as wood

Permabond surface activators pre-treat acidic surfaces to facilitate and speed cure. They can also be used post-application to quickly cure any exposed cyanoacrylate to eliminate blooming.

Directions for Use

• Surfaces should be clean, dry, and grease-free prior to primer application.
• Permabond QFS16 should be applied either by wiping (using a clean cloth or brush), spraying or dipping one component.
• Allow QFS16 to fully evaporate before bonding to make sure there isn’t any solvent entrapment in the joint.
• Permabond cyanoacrylate adhesive is then applied to the untreated surface; the two parts should be quickly mated.
• Do not put the adhesive on the treated surface as the adhesive could cure before the parts can be properly mated. Only if the gap is extremely large (>20 mil) activator may be applied to both surfaces.
• For maximum bond strength, allow the adhesive to cure for 24 hours at 23°C.
• Permabond QFS16 is formulated to minimize attack and maximize performance on certain plastics. However, it is recommended that the product is tested for compatibility prior to use in production.
• For post-applying (e.g. for curing excess adhesive fillets or for wire tacking):
  • Lightly spray or drip activator onto uncured adhesive (do not react large quantities).