DOWSIL™ 732 Multi-Purpose Sealant is a one-part, room-temperature vulcanizing (RTV) silicone adhesive/sealant renowned for its versatility across various industrial applications. Notably, it complies with FDA 21 CFR 177.2600, making it suitable for incidental food contact applications.
Product Overview
Cure System : Acetoxy (releases acetic acid upon curing)
Cure Time : Tack-free in approximately 20 minutes; full cure in 24 hours to 7 days, depending on thickness and environmental conditions
Operating Temperature : -60°C to +180°C (intermittent peaks up to +205°C)
Colors Available : Clear, white, black, aluminum
Packaging Options : Available in 90 mL tubes, 139 mL tubes, 300 mL cartridges, and 17.7 kg pails
Key Features
FDA Compliance : Meets FDA 21 CFR 177.2600 for incidental food contact
Electrical Insulation : Excellent dielectric properties, with a dielectric strength of approximately 550 V/mil
Mechanical Properties:
* Hardness: Shore A 25
* Tensile Strength: 335 psi
* Elongation at Break: 540%
Adhesion : Good adhesion to a variety of substrates, including metals, glass, ceramics, and plastics
Weather Resistance : Resistant to ozone, UV radiation, and temperature extremes
Certifications : Complies with MIL-A-46106 and is UL recognized under UL QMFZ2
Applications
Food Industry : Sealing and bonding in food processing equipment where incidental food contact may occur
General Industrial Use : Bonding and sealing in appliances, automotive, aerospace, and electronic assemblies
Formed-in-Place Gaskets : Creating custom gaskets for compressors, gearboxes, and pumps
Sealing : Flashing, vents, flues, gutters, marine cabins, windows, and electrical boxes
Safety and Handling
Ventilation : Use in well-ventilated areas to avoid inhalation of acetic acid vapors released during curing
Skin and Eye Contact : Avoid contact; use appropriate personal protective equipment
Storage : Store in a cool, dry place away from direct sunlight
Shelf Life: Up to 12 months when stored in unopened containers at or below 27°C
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