Summary: Adhesive bond failure after pressing can result from the adhesive, materials, equipment or process conditions. Check the following causes before changing products.
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1. Incorrect adhesive selection
Confirm that the adhesive is suitable for the substrate, application and required strength.
2. Poor surface preparation
Dust, oil, moisture or an uneven surface can prevent proper wetting and bonding.
3. Incorrect application amount
Too little adhesive creates weak coverage, while too much can delay curing and reduce stability.
4. Pressing conditions
Check pressure, temperature and pressing time against the adhesive specification.
5. Material moisture
Excessive or uneven moisture in the materials may cause weak joints or later failure.
6. Equipment and process issues
Inspect rollers, nozzles, mixing systems and line speed for inconsistent application.
7. Curing and storage
Allow sufficient curing time and store adhesive under the recommended conditions. TECHBOND specialists can help identify the root cause and recommend a suitable grade.
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