Page 333 - Handbook of Adhesives and Sealants

Anerobic temperature cure Indefinite pot life High strength on some substrates Not recommended for permeable surfaces will not cure in air Limited gap cure
Rapid room Good solvent resistance Good elevated temperature resistance No mixing Nontoxic Moderate cost as a wet filet

Cyanoacrylate Rapid room temperature cure One component High tensile strengths Long pot life Good adhesion to metal Dispense easily from package High cost Poor durabilit

Advantages and Limitations of the Five Most Widely Used Chemically Reactive Adhesives 5

Modified acrylic Good flexibility Good peel and shear strengths No mixing required Will bond dirty (oily) surfaces Room temperature cure Moderate cost Low hot temperature

Polyurethane Varying cure times Tough Excellent flexibility and low temperatures One or two component, room temperature or elevated temperature cure Moderate costs Both u

High strength Good solvent resistance Good gap filling properties Good elevated temperature resistance Wide range of formulations properties Two component mixing One
Epoxy Relatively low cost Exothermic reaction Exact proportions needed for optimum formulations require exact measuring and formulations often require refrigerated

TABLE 8.4a Advantages Disadvantages 292