A hot melt hose is a vital part of any hot melt system, and its performance can degrade over time. While the need to replace hot melt parts can be frustrating, the improved output and dispensing quality can save you money in the long run.
On average, hot melt hoses should be replaced every 5 years.
This timeframe can vary depending on factors such as the dispensing volume, the type of adhesive used, and the volume of automatic movement. However, there are certain signs that indicate it’s time for a replacement.
1) The Hose Is Leaking
If you see hot melt adhesive leaking from the hose, whether from the fittings or elsewhere, it’s a sign that the hose is no longer functioning correctly. Hot melt adhesive is expensive, so even a tiny leak can add up quickly. In addition, hot melt adhesive can be dangerous if it encounters skin.
2) The Hose Is Visibly Damaged
If the hose is cracked or otherwise damaged, it can no longer contain hot melt adhesive properly. In some cases, you may be able to patch the hose, but it’s generally best to replace it entirely.
3) New Nozzles Clog Within Minutes
If you find that new nozzles are clogging after only a few minutes of use, it’s likely due to build-up within the hose. Over time, hot melt adhesive can harden and become difficult to remove, even with regular cleaning. This can cause clogs that prevent the glue from flowing properly.
4) You’re Experiencing Uneven Dispensing
If hot melt adhesive is not coming out evenly from the nozzle, it’s another sign of a clog somewhere in the system. Uneven dispensing can also be caused by air bubbles in the adhesive, which are often the result of damaged hot melt hoses.
5) Changes In Adhesive Quality
If you notice a change in the quality of your hot melt adhesive, such as a change in colour or consistency, it could be due to contamination. Hot melt hoses can become contaminated over time, affecting the quality of the adhesive being dispensed.
6) A Non-Wet-Wash Hose Has Become Wet
If a hose gets wet, water can get into electronics and this will blow fuses or potentially damage the control board in the Melt Unit.
Find Out More
To speak with one of our experienced hot melt system engineers about the best strategy for maintaining and replacing your hot melt hoses, please call 01480 869220 today.