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-   -   Coating cast glass (http://talk.craftweb.com/showthread.php?t=12565)

Dave Bowers 03-20-2020 09:53 PM

Coating cast glass
 
I've heard and/or read about coating castings (Gaffer in this case), especially after sandblasting to protect from finger prints, oils, and what not. Obviously there's Liquid Lust'er and I've had a thin coating of Hextal suggested. Years back I read on this forum (I believe) of a common clear bathroom sealant being used.

While I may take my current casting to a polish, I'm interested to hear others experiences, whats good and what not.

Eric Trulson 03-21-2020 09:27 AM

I've been playing around with a new (for me) substance, Liquin. It's a lacquer-type outer coating for oil paintings, a lot of online art suppliers stock it.

Has worked well so far the handful of times I've used it on sandblasted glass pieces, but it needs to be applied carefully - I messed up one piece by trying to use a paper towel to wipe off some excess and getting little paper particles stuck on the surface (Going to need to re-sandblast that piece to fix it).

Going forward I am planning to heat up the liquin a bit in a double boiler beforehand to thin it out, and use a soft brush to apply it, to try and get a more even coverage


Edit: Link to another useful thread on this topic from 2011 that Dave unearthed: Sandblasted surface coatings

Dave Bowers 03-21-2020 08:38 PM

After figuring out the right search terms, I found the thread from 2011 under "Sandblasted surface coatings".

Shawn Everette 03-23-2020 09:03 AM

Here ya go, https://www.bullseyeglass.com/method...?articleid=766 .

Bought it, but have yet to use it. Personally I like Hxtal thinned with acetone and air bushed. It's kind of a huge pain, but the results are perminant.

Pete VanderLaan 03-23-2020 11:45 AM

Air spraying Hxtal gives me the willies. Only do that with superb ventilation. If I say what I really think, I hear from their lawyer.

Shawn Everette 03-23-2020 12:30 PM

Agreed. I haven't done it in some time, but always under a hood and with a respirator. You can apply thinned by brush and still get a lot of detail, but spraying lets you retain the blasted texture, if that's what you're after.

Marty Kremer 03-23-2020 01:07 PM

Quote:

Originally Posted by Shawn Everette (Post 147414)
Here ya go, https://www.bullseyeglass.com/method...?articleid=766 .

Bought it, but have yet to use it. Personally I like Hxtal thinned with acetone and air bushed. It's kind of a huge pain, but the results are perminant.

I use it all the time on sandblasted bullseye. Good stuff. And surprisingly, BE's price is ok.

Nick Delmatto 03-23-2020 08:10 PM

Has the Clean Shield withstood the test of time? How old is it?

Marty Kremer 03-23-2020 09:42 PM

If you're talking about shelf life, I don't know.
It's not permanent. I'd say it's good for a couple of years before needing another application (but that's a guess).


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