Epoxy Adhesive Formulations

Appendix B: Properties of Selected Commercial Epoxy Adhesive Formulations

Table B.1: Two-Component Epoxy Adhesives

Adhesive trade name

Adhesive supplier

Mix ratio, by weight

Curing conditions

Properties

Master Bond EP 35

Master Bond

100/70

24 48 h at RT

1 2 h at 95 C

High strength at 450 500 F

Master Bond 21 LV

Master Bond

100/100

24 48 h at RT

1 2 h at 95 C

General-purpose adhesive; good chemical resistance

Master Bond EP45HT

Master Bond

100/30

1 h at 65 C plus

2 3 h at l25 150 C

Excellent chemical and temperature resistance; sterilization-resistant

Araldite AY103/Hardener HY 991

Huntsman

100/40

24 h at RT

15 min at 100 C

Low-viscosity, transparent liquid

Araldite AV 144-2/Hardener HV997

Huntsman

100/60

10 h at RT

6 min at 100 C

Paste; tough high strength, good chemical resistance

Araldite XB 5308/Hardener XB 5309-1

Huntsman

100/100

10 h at RT

7 min at 100 C

Thixotropic, nonsagging adhesive that forms resilient bonds to FRP

Stycast E 1000 A/B

Emerson and Cuming; National Starch

100/120

3 h at 80 C

Low-viscosity, flexible adhesive; -40 to +65 C service temperature

Stycast W 19/Catalyst 9

Emerson and Cuming; National Starch

100/12

16 24 h at RT

l 2 h at 95 C

Very low viscosity (250 cP)

Bondmaster 4E90 A/B

Bondmaster

100/35

24 h at RT

4 h at 65 C

Unfilled, general-purpose adhesive; transparent

Scotch-Weld 2216

3M Company

2/3

24 48 h at RT

General-purpose, flexible epoxy; 8 12 h handling strength

Scotch-Weld 3501

3M Company

1/1

2 h at RT

Fast cure; 20 30 min handling strength; rigid

Scotch-Weld 1751

3M Company

3/2

24 h at RT

Long working life; 8 12 h handling strength; rigid

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