3M

Health and Safety Precaution

3M™ Aerospace Sealant AC-735 Class B are safe to use and

apply when recommended precautions are followed. Before

using this product, read and understand the Material Safety Data

Sheet (MSDS), which provides information on health, physical

and environmental hazards, handling precautions and first aid

recommendations. An MSDS is available on request.

Storage

The shelf life of 3M™ Aerospace Sealant AC-735 Class B is

9 months from date of packaging, when stored at temperatures

below 80°F in its original unopened container.

Mixed 3M AC-735 Class B Sealants may be stored under

refrigeration as follows:

15 days at -10°F

30 days at -40°F

It is important to remember that freezing, storing and thawing

procedures reduce application life. In addition, frozen storage

will reduce application life by varying amounts depending on the

storage temperature and length of storage time. All aspects of

storage, freezing and thawing should be planned carefully and it

is not recommended to mix and freeze with less than 1/2 hour of

available application time.

- 2 -

Load / %

Substrate

Conditioning

Cohesion

AMS 4049

14 days room temp

32 piw / 100%

(Alclad)

7 days 140°F in JRF/Salt Water

24 piw / 100%

MIL-C-5541

14 days room temp

31 piw / 100%

7 days 140°F in JRF/Salt Water

25 piw / 100%

Chromic Acid

14 days room temp

35 piw / 100%

Anodized

7 days 140°F in JRF/Salt Water

24 piw / 100%

MIL-S-5059

14 days room temp

29 piw / 100%

(Stainless steel)

24 piw / 100%

7 days 140°F in JRF/Salt Water

22 piw / 100%

MIL-T-9046

14 days room temp

30 piw / 100%

(Titanium)

26 piw / 100%

7 days 140°F in JRF/Salt Water

22 piw / 100%

14 days room temp

33 piw / 100%

AMS-C-27725

7 days 140°F in JRF

22 piw / 100%

23 piw / 100%

7 days 140°F in JRF/Salt Water

20 piw / 100%

14 days room temp

31 piw / 100%

BAMS

7 days 140°F in 3% NaCl

27 piw / 100%

565-001

7 days 140°F in JRF/Salt Water

26 piw / 100%

22 piw / 100%

7 days 140°F in DI Water

23 piw / 100%

14 days room temp

30 piw / 100%

BAMS

7 days 140°F in 3% NaCl

29 piw / 100%

565-002

20 piw / 100%

7 days 140°F in JRF/Salt Water

20 piw / 100%

14 days room temp

44 piw / 100%

48 hrs 140°F in MIL-PRF-83282

36 piw / 100%

MIL-PRF-

48 hrs 140°F in MIL-PRF-7808

37 piw / 100%

23377

48 hrs 140°F in MIL-PRF-23699

37 piw / 100%

48 hrs 140°F in Salt Water

37 piw / 100%

48 hrs 140°F in JRF

32 piw / 100%

14 days room temp

44 piw / 100%

48 hrs 140°F in MIL-PRF-83282

41 piw / 100%

AS4/3501-6

48 hrs 140°F in MIL-PRF-7808

38 piw / 100%

(Graphite-Epoxy)

48 hrs 140°F in MIL-PRF-23699

43 piw / 100%

48 hrs 140°F in Salt Water

43 piw / 100%

48 hrs 140°F in JRF

30 piw / 100%

Typical Values of 3M

AC-735 Class B

Peel Strength*

Specification

Conditioning

Requirements

Results

Standard Cure - 14 days

200 psi / 200%

230 psi / 390%

- 7 days @ 250°F

200 psi / 100%

270 psi / 120%

- 72 hrs in JRF at 140°F,

72 hrs at 120°F, 7 days

200 psi / 100%

270 psi / 170%

at 250°F

80 psi / 100%

120 psi / 250%

Tensile Strength and % Elongation

*Testing per AS5127a