Troubleshooting Guide for Pressure Sensitive Hot Melts
	Problem	Cause	Solution
	Adhesive thin	Cooked adhesive	1. Purge system and replenish 2. Low use=turn off/down system
	Bond strengths low	Too little adhesive	1. Increase quantity
		Contamination	1. Check for silicone contamination 2. Check for slip additives in film
	Adhesive stringing from nozzle	Temperature too low	1. Allow adequate melt time 2. Increase nozzle/hose temperature
	Adhesive bond is 'stringy'	Cooked adhesive	1. Purge system and replenish
		Substrate contains plasticizers	1. Use non-plasticized substrate
	Adhesive 'not melting'	Heater element out	1. Check hot melt system
		Adhesive added when tank is empty	1. Maintain half filled tank
	Troubleshooting Guide for Extended Open Time Hot Melts
	Problem	Cause	Solution
	Adhesive bond fails	Fails from substrate(s)	1. Adhesive too cool-increase temp 2. Increase amount of adhesive
		Adhesive cohesively splits (on both sides)	1. Reduce temperature 2. Reduce amount of adhesive
		Substrate changed	1. Send new substrates to Heartland for evaluation
	Adhesive stringing from nozzle	Temperature too low	1. Allow adequate melt time 2. Increase nozzle/hose temperature
	Adhesive dark	Cooked adhesive	1. Purge system and replenish 2. Low use=turn off/down system
	Corporate: 262-255-9171 Technical- Ext. 104 “Big enough to serve your needs...small enough to care.”