3M™ AC730B1/2 class B non-sag aerospace sealant is ideal for offering effective barrier against the common causes of corrosion. This product comes in two parts which includes part-A catalyst and part-B base. The liquid part-A catalyst of sealant is dark brown in color, while the thixotropic paste part-B base is light tan in color. This slight odored part-A catalyst has a specific gravity greater than or equal to 1.58 and VOC contents of 3 grams per liter. This sulfurous odored part-B base has a specific gravity of 1.5 and VOC contents of 3.8 grams per liter. The sealant is supplied in a 3.5-ounce container and can be mixed in a 100 base/10 accelerator ratio by weight to form a mixed compound. It requires 1/2 hour for application and will be sufficiently cured after 6 hours. The product withstands a temperature range of -65 to 250 degrees F.

Features:

• Efficiently maintains flexibility and bond strength on various metals
• Easy to apply using spatula, extrusion gun or injection dispenser
• Provides low shrinkage results in less rework
• Density of 1.58 grams per milliliter for part-A catalyst and 1.5 grams per milliliter for part-B base
• Viscosity of 9500 to 16,000 poise at 77 degrees F for part-B base
• Withstands a tensile strength of 200 psi
• Flash point greater than or equal to 200 degrees F

Benefits:

• Employs non-chromate corrosion inhibitive formula, thereby helping to comply with chromate reduction initiatives
• Suitable for use on most metal substrates including aluminum and between other dissimilar metals

Applications:

• Seals faying surfaces of mating parts
• Seals joints from passage of liquid or air
• Prevents corrosion and channeling leakage

Specifications:

• AMS 3265
• FAM-3104
• LMA MU006 Type I, DPM 5896-2 and 5PTMUT06 Type I