Monday, February 6, 2017

Silicone, again

If you've been reading this blog for a while, you might remember my declaring my absolute hatred for silicone rubber.  Our Previous Owner loved the stuff - he slathered it everywhere.  He even used it to glue stuff to Eolian's vinyl headliner.  I removed the various things, but try as I might, I was unable to remove the silicone from the vinyl without damaging it, creating a bigger problem than I was solving.

Years went by.

And then Drew reviewed a product: Re.Mov.It, aka DSR-5.  (Sorry Drew, I can't find the reference in your blog)...

I ordered some:

Holy cow!  This stuff actually works!

OK, it doesn't actually dissolve the silicone (I don't think anything would do that). But what it does do is soften it and swell it, making it easy to scrape off.

I applied it using the end of a paper napkin, wiping it on the silicone over and over.  And then I lowered my thumbnail and continued to wipe back and forth, scraping the silicone as well as wetting it.  The silicone came right off!

I need to mention again that previously I had actually reached the point of damage to the naugahyde headliner in trying to remove the silicone...  and now it's gone!

If you have a Previous Owner like ours, you need this stuff!



Deb said...

Have you tried it on fiberglass yet? We have some stains from PO silicone that I would love to get off.

SV Kintala

Robert Salnick said...

Deb, I have not. But it caused no detectable harm to the Naugahyde, so I would think it would be safe on gelcoat...

Drew Frye said...

Told you so! The blog post vanished because it was made into a published article. The moral of the story is to subscribe to Practical Sailor.

It did restore 100% bonding strength to gelcoat when I followed up with polyurethane (Locktite PL S40 is my favorite), so it might help with stains. Or they might be too deep.

Spoiler. If have trouble with polyurethane, try Debond Marine Formula. The trick is to score the edges well with a razor knife and try to get some pealing action going. It takes time, but it does help a good deal (I tested on 3M 5200).

It would be nice if one product worked for all, but chemistry isn't like that.

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