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Marinite Board
Posted: Thu Apr 24, 2003 9:21 am
by quill
I just ordered dome stuff from Thompson Enamels & I noticed they had various sizes of 'Marinite Board' for sale.
I am not familiar with this & was wondering, is it useful in fusing, say for slumping molds or as a kiln shelf?
Re: Marinite Board
Posted: Thu Apr 24, 2003 11:01 am
by Bert Weiss
quill wrote:I just ordered dome stuff from Thompson Enamels & I noticed they had various sizes of 'Marinite Board' for sale.
I am not familiar with this & was wondering, is it useful in fusing, say for slumping molds or as a kiln shelf?
I'm surprised to hear that Thompson would be selling Marinite. It warps pretty badly at the temps we work at.
Posted: Thu Apr 24, 2003 9:01 pm
by quill
It warps pretty badly at the temps we work at.
It was advertised for use with enamels not fusing, I just wondered if it would work with fusing.
Posted: Fri Apr 25, 2003 1:45 am
by Bert Weiss
quill wrote:It warps pretty badly at the temps we work at.
It was advertised for use with enamels not fusing, I just wondered if it would work with fusing.
Thompson enamels mature around 1400ºF which is similar to fusing. I wouldn't spend my money on another marinite board.
Posted: Fri Apr 25, 2003 7:54 am
by watershed
A local shop used it for annealer doors. They won't use it again. They had 2 theories, either they fitted it too tightly, or it was just C**p. Either way it cracked badly, though it has not failed.
Greg
Posted: Fri Apr 25, 2003 11:47 am
by Jacques Bordeleau
I tried it for a 24x55 kiln shelf years ago. It warped like a pototo chip, blistered, and cracked .... not all on the first firing. Pretty much sucks for anything above low-fire enamels 1100-1200 degrees. The factory couldn't believe it, since it is rated much higher (2,000?) and did replace the 4x8' sheet....which also failed. I still have one more piece leftover. I'm waiting for someone really smart to tell me how to use it without these problems....hahahahah. Save your money.
regards, Jacques