TechnicianVision · Knowledge base
3M: Adhesive Cartridges
I-CAR · November 18, 2019
Summary
This article outlines critical handling, storage, and troubleshooting procedures for 3M 2-part adhesive cartridges and expanding foams. It details shelf life expectations, how to preserve partially used cartridges by leaving the mixing nozzle attached, and how to diagnose curing issues.
What to do on the job
Leave the mixing nozzle on partially used cartridges to seal out air, and for expanding foams, keep the cartridge in the applicator gun under plunger pressure for at least 5 minutes after use to prevent back-expansion.
How to use it
Use this document to justify the proper handling and preservation of 3M adhesives on estimates. It supports billing for cartridge equalization, nozzle replacement, and explains why a cartridge may need to be replaced if it fails manual cure testing or exceeds its 12-24 month shelf life.
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