# Thinning of waterproof silicone sealant - what solvent?

**URL:** <https://boards.straightdope.com/t/thinning-of-waterproof-silicone-sealant-what-solvent/411350>\
**Category:** Factual Questions\
**Created:** [July 11, 2007, 11:38am UTC](https://boards.straightdope.com/t/thinning-of-waterproof-silicone-sealant-what-solvent/411350 "2007-07-11T11:38:41Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [August 29, 2024, 4:18pm UTC](https://boards.straightdope.com/t/thinning-of-waterproof-silicone-sealant-what-solvent/411350/23 "2024-08-29T16:18:33Z")

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I should probably say… I never did pursue this project past the conceptual stage; or at least, I haven’t. Yet.

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**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\
**Post date:** [August 29, 2024, 6:41pm UTC](https://boards.straightdope.com/t/thinning-of-waterproof-silicone-sealant-what-solvent/411350/24 "2024-08-29T18:41:22Z")

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If you want to smooth down the surface of your silicone after it has been put in place and formed, I find that can use my fingers or gloves coated with cooking oil spray. The silicone won’t stick to the oiled surface and you can smooth it out nicely.

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