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Tip O' The Day


Tip O' The Day

Inexpensive RTV for Molds    


[Science!]

Category:

   Molds and Casting

Submitted By:

   thechad@midohio.net

Tip:

   I found a cheap RTV silicone invarious store's auto departmant. It's for making/replacing engine Gaskets and it is great for molds. It dries strong in a day. It comesin a squeezable tube like toothpaste and costs around $10.

You can get 6 molds or more out of the RTV. I only use it 1/4" thick. Its strong that thin, but I also reinforce it with plaster or Ultra cal 30. I recommend when making a two part mold use Vaseline as a mold release. Nothing sticks to it.


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Tips database last updated 21 July 2014



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DISCLAIMER: These procedures and practices represent the recommendations of the members of the Starship Modeler readership. These ideas are not necesscessarily endorsed for their saftey or results by the staff of Starship Modeler. The reader assumes full responsibility for any and all results stemming from the application of the procedures and practices listed here.








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Previously updated on 9 May 2007 and 26 August 2014. Source last updated on 11 September 2022.

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This page copyright ©1999-2022 . Previously updated on 9 May 2007 and 26 August 2014. Source last updated on 11 September 2022.