3M™ AC-735B1/2 Aerospace Sealant 70005204303, 3.5 oz

3M™ AC735B1/2 class B non-sag aerospace sealant 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 paste part-B base is off-white in color. This slight odored part-A catalyst has a specific gravity of 1.58 and VOC contents of 2.4 grams per liter. This sulfurous odored part-B base has a specific gravity of 1.1 and VOC contents of 1.9 grams per liter. The sealant is supplied in a 3.5-ounce container and can be mixed in a 100 base/10 catalyst ratio by weight to form a mixed compound. It requires 1/2 hour for application and will be sufficiently cured after 5 hours. The product withstands a service temperature range of -65 to 250 degrees F.

Features:

• Efficiently maintains flexibility and bond strength on various metal and coated substrates
• Easy to apply using spatula, extrusion gun or injection dispenser
• Uses low-density formula that weighs 3 to 4 pounds less per gallon than traditional sealants
• Quick cure rate helps to achieve increased throughput
• Provides low shrinkage results in less rework
• Density of 1.58 grams per milliliter for part-A catalyst and 1.1 grams per milliliter for part-B base
• Viscosity of 11,000 to 13,000 poise at 77 degrees F for part-A catalyst
• 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, titanium, steel and stainless steel

Applications:

• Corrosion protection
• Sealing fuselages
• Filling voids

Specifications:

MIL-PRF-81733, Class I, Grade B, Type II