Part# 09-27810
MFR Model# 3138372
DescriptionColorPart Number
#732 Dow Silastic RTV, 4.7 Oz. TubeWhite09-27810


Dow DOWSIL™ 732 Multi-Purpose Sealant is a one-component, non-slumping, silicone paste that is used for bonding and sealing industrial applications. It offers easy application, acetoxy cure system, flexibility, and good dielectric properties.
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  • Used for adhering auto, aircraft and appliance trim, including metal, fabric and fabric-backed plastics, bonding gaskets in heating and refrigeration units and protecting components from moisture from frequent wash downs or weathering.


exactly what we ordered

Front R
May 14, 2021

High quality RTV sealant

Blaine W
April 8, 2021

Good product works fine I am very happy

Yvan R
March 8, 2021

I have always had great customer service and products are as advertised. Process improvement recommendation is that a large plastic bag isn’t always needed. Example 5 washers in a small plastic bag put in a larger bag to hand to customer.

Tom M
July 21, 2020

Awesome as usual. Thank you.

October 21, 2019

It does what they say it does. It holds in crankshaft seals just like Lycoming says it does

October 27, 2018

High quality RTV when only the best will do

William B
April 20, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can Dow Corning 732 RTV sealant be used to seal up against acrylic windows without crazing the glass? I'm trying to seal the external seam between the metal trim and the rear window.

Yes, this is commonly used to seal windows when installed.

Q: Do you have the SDS/MSDS for the 732 DOW Silastic RTV, 3 oz, black?

Yes, we have added it as a PDF to the Documents tab of this web page. Please download it there.

Q: I need a product to seal around skylights already installed in a Cessna 172 to stop water. Is this the best product?

RTV can be used similar applications as this, but we suggest reviewing your aircraft maintenance manual or consult with your A&P to be sure this is the best material for your specific application.

Q: What is the manufacturers recommended shelf life for the 732 RTV?

DOW 732 had a 30 month shelf life from date of manufacture.

Q: What product is used when cleaning up RTV sealant?

We recommend you use a lint free oil absorbant cloth, oil based solvent removers. Safesolve is a good adhesive remover.

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