Storage of Formulated Adhesives by the End User

The method by which the adhesive or sealant is stored can affect the quality of the bond even before the containers are open. The manufacturer s storage directions are usually found in the technical bulletins describing the particular adhesive or sealant. As a general rule, all adhesives and sealants should be stored in a cool, dry place until it is time for then-use. Certain adhesives are very tolerant of storage conditions, but some types may have to be stored at low temperature or under special conditions. Some adhesive systems are affected by light or moisture, and others will require periodic agitation to make sure that the components do not settle irreversibly. 

Ram inserted into rod to open valve and inject catalyst 

Rod valve opens to combine catalyst with base 

Barrier-and injection-style kits. Source Techcon systems inc. 

FIGURE 17.3 Several varieties of preproportioned adhesive containers (a) side-by-side syringe with a static mixer, (b) bubble pack with hinge, and (c) barrier style cartridge.3 

---