A full troubleshooting guide is available to all Interlock customers.

Simply request via the ‘contact page’.

It covers some of the main causes and solutions for the following problem areas:

• Degraded Adhesive - Eg. darkening, charred particles, thickening or gelling, excessive fuming.
• Blocked nozzles on hot melt applicators - Blocked glue nozzles can result in little or no adhesive being applied and are a common  cause of downtime, smash ups, and product wasteage.
• Stringing - Stringing is also called ‘candy floss’ or ‘cobweb’. It can build up on the machine causing frequent stoppages and lost production. It can also contaminate the product being bonded.
• Poor adhesion - eg, adhesive is glossy and is only on the surface to which it was applied, adhesive is glossy on both surfaces, but shows solidified ‘legs’, adhesive has matt finish, and is only on one surface, but has flattened out in compression etc.
• Tram Lines - Tram lines’ are particular to wheel applicators and appear as two beads of adhesive joined by a thin layer in-between,  i.e. the edges of the glue line are thick and  the middle is thin. This can  result in adhesions that look well bonded, but when tested are weak and could fail in transit or subsequent handling.