Troubleshooting Radio Frequency Edge Gluing

‍Issue: Undercured joint/glue line still wet
Possible Causes:

• ‍Low power| Recommendation: Increase power
• ‍Short cure cycle | Recommendation: Increase cycle time
• ‍No pressure | Recommendation: Check filler boards and pressure system
• ‍High moisture content | Recommendation:6-8% moisture content recommended
• ‍Improper catalyst mix | Recommendation: Please contact technical support
• ‍Generator malfunction | Recommendation: Contact equipment repair company

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Issue: Cured joint-weak bonds
Possible Causes:

• ‍Slightly under-cured | Recommendation: Check power and time settings
• ‍Incorrect pressure | Recommendation: Check edge pressure
• ‍Irregular or burnished surfaces | Recommendation: Check surface preparation
• ‍Improper moisture | Recommendation: 6-8% moisture content recommended

Issue: Panel open on ends
Possible Causes:

• ‍Poor stock preparation | Recommendation: Check quality of gluing surface/end fit
• ‍Pressure shoes overlapping on next panel | Recommendation: Check and correct if necessary
• ‍Shrinkage between time of surfacing and pressing | Recommendation: 6-8% moisture content, 30% minimum relative humidity and glue within 24 hours of preparation
  
  
  

Issue: Burning in joints
Possible Causes:

• ‍Power too high | Recommendation: Reduce power
• ‍Improper catalyst level | Recommendation: Please contact technical support
• ‍Surface irregularities | Recommendation: Check surface preparation
• ‍Excessive spread | Recommendation: Reduce glue spread
• ‍Long assembly time | Recommendation: Press within five minutes
• ‍High edge pressure | Recommendation: Reduce edge pressure

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Issue: Black glue lines
Possible Causes:

• ‍Iron contamination in adhesive | Recommendation: Isolate and eliminate contact source of wet adhesive with iron or steel