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Brief description
DOWSIL 732 is a one-component silicone sealant and adhesive (RTV) for universal sealing and bonding applications in industrial environments. The material is non-sagging (non-running), easy to apply, and cures at room temperature through exposure to humidity to form a tough, permanently elastic rubber . Available in white and transparent (clear to translucent).
Your advantages with DOWSIL 732
- 1K, ready to use: no mixing, no pot life, direct processing
- Non-running: ideal for vertical joints and gaps
- Rapid skin formation: Skin Over (typically approx. 7 minutes), Tack Free (typically approx. 20 minutes)
- Permanently elastic and robust: hardens into a tough, flexible rubber.
- Wide temperature range: stable and flexible from -60 °C to +180 °C, briefly up to +205 °C
- Good electrical insulation: excellent dielectric properties
- Standards and conformity : meets, among others, MIL A 46106 and FDA 21 CFR 177.2600 requirements (Rubber articles intended for repeated use)
White or transparent: which version is right?
White
- When the joint is visible and should appear visually clean
- Typical for housings, covers, apparatus construction, light-colored surfaces
Transparent (clear to translucent)
- If the joint is to remain as inconspicuous as possible
- Typical for glass, visible surfaces, transparent covers
Typical applications
DOWSIL 732 is suitable for general industrial sealing and bonding applications, for example:
- Sealing housings, covers, and penetrations against moisture and dust
- Elastic bonding, fixing and joint sealing in the MRO environment
- Applications where density and electrical insulation are required simultaneously
Key technical data (typical values)
- Consistency: firm paste, non-sag
- Extrusion rate: typically 350 g/min
- Skin Over: typically 7 minutes
- Free trial: typically 20 minutes
- Density: typical. 1.04
- Hardness: typical Shore A 25
- Tensile strength: typ. 2.3 MPa
- Elongation at break: typical. 540 %
- Curing time: approx. 3 mm in 24 h at room temperature and 50% relative humidity
Instructions for use (to ensure reliable adhesion)
- Prepare the surface: Ensure it is clean and dry, degreased, and free of contaminants. Suitable solvents include isopropanol, acetone, or MEK.
- Application and joining: Apply material to a surface, then join it promptly.
- Smoothing: Finish tool machining before skin formation.
- Allow to harden: Hardening proceeds from the outside in; deeper cross-sections require correspondingly more time.
- Optimize adhesion: Unprimed adhesion is possible on many substrates. For maximum adhesion, Dow recommends the DOWSIL 1200 OS Primer.
Information on material compatibility
- DOWSIL 732 is an acetoxy-curing agent. Byproducts (typically acetic acid odor) are formed during curing. Test the suitability of DOWSIL 732 for corrosion-sensitive metals and in closed volumes in the specific setup.
- Good adhesion is possible on many substrates; PTFE, PE, PP and related materials are typically problematic
Technical data for DOWSIL 732 Multi Purpose Sealant, 1K silicone sealant and adhesive
| Product information | |
|---|---|
| Container | 90 ml |
| Physical properties | |
|---|---|
| Color | transparent, white |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
No public documents are available.
We will gladly send you the TDS and SDS by email upon request; please submit a request.
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Product specifications
| Product information | |
|---|---|
| Container | 90 ml |
| Physical properties | |
|---|---|
| Color | transparent or white |
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