27453 activator is for one component, not including FI and chlorin solvent it is mainly use to accelerate the instant cure speed.  
 
27453 spray nozzle activator can use before or after the adhesion, it can make sure the Stable of glue position, improve the efficiency.
 
Character: activator before the adhesion, accelerate the cure speed use to the electronic area, 4 seconds to the operation