DOWSIL 732 Multi-Purpose Sealant

Overview

DOWSIL 732 Multi-Purpose Sealant is a general-purpose acetoxy RTV sealant that meets the requirements of 21 CFR Section 177.2600 for rubber articles intended for repeated use. It is a one-part adhesive/sealant that cures at room temperature when exposed to moisture in the air, has a non-sag paste consistency for easy application, and cures to a tough, flexible rubber with good adhesion to many substrates. It offers excellent dielectric properties and complies with MIL-A-46106 and FDA 177.2600. Available in white, black, clear and aluminum; the black version withstands slightly higher continuous and peak temperatures than the other colors.

Specifications

Color

White, Black, Clear, Aluminum

Strength

Medium

Base Type

RTV silicone

Cure Type

Acetoxy cure (moisture-curing)

Service Temperature

-60°C to +180°C, short peaks to +205°C (Black version: to +205°C, short peaks to +230°C)

Fixture Time

Tack-free 20 minutes (50% RH)

Certifications

FDA 21 CFR 177.2600, MIL-A-46106

Technical Information

• Durometer Shore A 25
• Elongation 540%
• Tensile strength 333.6 psi (2.3 MPa)
• Specific gravity 1.04 @ 25°C

Typical Applications

• General industrial sealing and bonding applications
• Electrical and electronic component sealing where dielectric properties matter
• Applications requiring FDA 177.2600 or MIL-A-46106 compliance

Industries

Technical Documents