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HomeShop SuppliesAdhesives, Tapes, & SealantsSealantsCorrosion Inhibitive Sealant3M Aerospace AC-665 Class B-1/2 Corrosion Inhibitive Sealant
3M Aerospace AC-665 Class B-1/2 Corrosion Inhibitive Sealant

3M Aerospace AC-665 Class B-1/2 Corrosion Inhibitive Sealant

Corrosion on aircraft is typically caused by aviation gasoline, jet fuel, petroleum products and other chemicals common to the aerospace industry. Provide an effective barrier against these common causes of corrosion to your aircraft with the use of 3M Aerospace AC-665 Class B-1/2 corrosion inhibitive sealant from SkyGeek. This anti-corrosion aircraft sealantís formula features a manganese-cured, chromated compound, which provides a strong seal. Applying the product is incredibly easy with the use of a spatula, extrusion gun or injection gun. Once applied and cured, the AC-665 sealant retains its flexibility, even in extreme conditions. This sealant lasts through extreme temperatures, weathering and other stresses. Order your sealant in a 25-gram touch-up kit, 2.5- and 6-ounce tubes, pints and gallons.

Approvals, References and Specifications
  • BAMS 552-007
  • CML 09-044
  • GAMPS 7115
  • MB1658
  • MIL-PRF-81733
  • STM 40-111
  • 299-947-074 B-2 (PMF)
Use Instructions
Mixing Instructions

Two Part Sealant: 1. Holding the cartridge, grasp the dasher rod and pull back approximately one inch.

2. Insert the ramrod into the hollow of the dasher rod, break the piston loose, and inject about 1/3 of the contents into the cartridge.

Note: Do not inject all of the catalyst in one location. Distribute evenly throughout base material.

3. Repeat steps 2 and 3 until all the contents of the rod are emptied into the cartridge. Remove the ramrod.

4. Mix for the required number of strokes (hand mixing) or for the required amount of time (machine mixing) indicated in the kit intructions.

5. When mixing is complete, remove bottom cap.

6. Pull the dasher rod back to the neck of the cartridge, grasp the cartridge firmly at the neck, unscrew the dasher rod and remove.

7. Screw the nozzle into the cartridge, insert into the extrusion gun and use as required. For hand extrusion, press the used dasher rod against the

plunger to force the material from the cartridge.



Storage

The shelf life of AC-665 Class B is at least 9 months from date of packaging, when stored at temperatures below 80 degrees F in its original

container.



Mixed AC-665 Class B may be stored under refrigeration as follows: 15 days at -10 degrees F, 30 days at -40 degrees F. It is important to remember that

freezing, storing and thawing procedures reduce application life. Also, 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 application time.



Health and Safety Precautions

AC-665 Class B sealant is 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 upon request. Avoid overexposure. Obtain medical care in case of extreme overexposure.

Features
  • Corrosion-inhibitive sealant resistant to the corrosive effects of petroleum products, aviation gasoline and jet fuel
  • Manganese-cured, chromated compound
  • Apply with spatula, extrusion gun or injection gun
  • Maintains flexibility through temperature extremes and weathering
  • Available in 25-gram kits, 2.5-ounce tubes, 6-ounce tubes, pints and gallons
View DetailsEnable JS
Part Number
051141-58141
Size
25 Gram Kit
Spec
MIL-PRF-81733D Type II-1/2, Class 1, Grade A
Price
$9.30
Hover for Qty Pricing
Qty
Certification
Material Safety Data Sheet:
MSDS1
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Part Number
051141-58139
Size
2 oz Kit
Spec
MIL-PRF-81733D Type II-1/2, Class 1, Grade A
Price
$31.15
Hover for Qty Pricing
Qty
Certification
Material Safety Data Sheet:
MSDS1
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Part Number
051141-58144
Size
3.5 oz Kit
Spec
MIL-PRF-81733D Type II-1/2, Class 1, Grade A
Price
$34.56
Hover for Qty Pricing
Qty
Certification
Material Safety Data Sheet:
MSDS1
View DetailsEnable JS
Part Number
051141-58148
Size
Pint Kit
Spec
MIL-PRF-81733D Type II-1/2, Class 1, Grade A
Price
$65.13
Hover for Qty Pricing
Qty
Certification
Material Safety Data Sheet:
MSDS1
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