Wood Adhesives

Troubleshooting Assembly Gluing

The following information is a summary of potential issues and recommendations. Check out our complete Assembly Gluing Guide for additional recommendations!

Issue: Weak joint
Possible Causes:

  • ‍Loose part fit | Recommendation: Part should fit snugly but not require undue assembly force
  • ‍Joint design (dowels too short, etc.) | Recommendation: Redesign joint
  • ‍Glue setting too quickly/too slowly | Recommendation: Please contact technical support
  • ‍Insufficient glue coverage | Recommendation: Apply uniform coating of glue to all parts of joint
  • ‍Burnished surfaces | Recommendation: Sharpen cutter blades
  • ‍Overspray of finish on gluing surface | Recommendation: Remove finish before gluing
  • ‍Undercured or frosted glue lines due to low temperature | Recommendation: Raise plant, wood, and adhesive temperature
  • ‍Undercured or frosted glue lines due to short clamp time| Recommendation: Increase clamp time
  • ‍High Moisture Content | Recommendation: 6-8% moisture content recommended

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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

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Issue: Brilliant white on glue squeeze-out and/or glueline
Possible Causes:

  • ‍"Chalking" caused by low temperature | Recommendation: Raise temperature of plant, wood and adhesive above minimum use temperature of adhesive

Corporate Contact

Audrey L. Albright
Technical Marketing Specialist
E: audreyalbright@franklininternational.com
T: 1.800.877.4583

Corporate Contact

Mark Schroeder
Vice President of Marketing
E: markschroeder@franklininternational.com
T: 614.445.1507

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More information is available about our complete product offerings. Our experts can recommend specific solutions for your needs.

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