Some substrates may require corona, plasma, or other treatments for optimum bonds. Start-up typically requires as much as 45 minutes at 330 F before application, but may vary according to the material selected for any given application. Overheating should be avoided. Temperatures over 400 F may cause some degradation and the loss of some adhesives properties. Viscosity may be reduced by agitation or restricting line flow and adding pump capacity to feed lines.
Appropriate testing can occur after that time.