Table 4-2. - Shelf Life Data for Common Two-Part Epoxy Adhesives

TM 1-1500-204-23-11

Table 4-2.

Shelf Life Data for Common Two-Part Epoxy Adhesives

Material

90 F

77 F

40 F

0 F

Part A

1 month

3 months

12 months

EA956/EA9321

Part B

12 months

Part A

12 months

EA9309.3 NA

Part B

12 months

Part A

2 months

3 months

12 months

EA934NA

Part B

12 months

Part A

12 months

EA9394

Part B

12 months

Part A

12 months

EA9396

Part B

12 months

Part A

2 months

6 months

12 months

EA9390

Part B

12 months

Note: Values are based on the manufacturer s material data sheets.

4-7. POT LIFE. The pot life of an adhesive is the

data for common two part adhesive systems. The

amount of time elapsed between the time a two part

pot life igures listed for any given resin system are

adhesive is mixed and when the material hardens

usually determined at room temperature. Since the

into an unworkable state. Each adhesive has a

chemical reaction of crosslinking is accelerated with

different pot life which must be taken into account

heat, pot life is reduced at elevated temperatures.

when accomplishing a repair. Table 4-3 lists pot life

Table 4-3.

Pot Life Data for Common Two-Part Epoxy Adhesives

Pot Life @ 77 F

Maximum Amount to Mix (grams)

Material

(see Note 1)

(see Note 2)

EA956

30 minutes

250

EA9321

40 minutes

450

EA9309.3NA

35 minutes

450

EA934NA

40 minutes

450

EA9394

90 minutes

450

EA9396

90 minutes

450

EA9390

120 minutes

250

Note:

1. At 90F these times are reduced by 50%.

2. Maximum amount to mix to prevent excessive exotherm. Values are based on the manufacture s material

data sheets.

4-15