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Equipment Discussions >> ATM, Optics and DIY Forum

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Rockā„¢
member


Reged: 03/18/12

Tiles tear off please help new
      #5611392 - 01/08/13 06:04 AM

Hi 2 hours ago i was grinding my 8" F6 mirror, process was going fine then suddenly my son show me that 4 tiles are wearing off and red color brick like material is coming out behind the smooth face of tiles. It looks to me that smooth face of tiles is wearing n tearing off.
This is very looking like bricks. I am using ceramics tiles.

Coach me friend, what should i do now and my camera is also damaged otherwise i shows u all the image.

Edited by Rock™ (01/08/13 06:05 AM)


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planet earth
Carpal Tunnel
****

Reged: 09/07/10

Loc: Ontario Canada
Re: Tiles tear off please help new [Re: Rockā„¢]
      #5611394 - 01/08/13 06:15 AM

I believe you are using the wrong type of tiles.
Porcelain tiles are ther ones that you want or unglazed ceramic.
Willman Bell sells a sq ft for $9.00
Sam

Edited by planet earth (01/08/13 11:27 AM)


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dave brock
professor emeritus


Reged: 06/06/08

Loc: Hamilton, New Zealand
Re: Tiles tear off please help new [Re: Rockā„¢]
      #5611429 - 01/08/13 07:09 AM

I don't think you need to worry if the surface is just grinding off, that's normal. I've used tiles like that many times without problems.

Dave


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planet earth
Carpal Tunnel
****

Reged: 09/07/10

Loc: Ontario Canada
Re: Tiles tear off please help new [Re: dave brock]
      #5611785 - 01/08/13 11:33 AM

Quote:

I don't think you need to worry if the surface is just grinding off, that's normal. I've used tiles like that many times without problems.
Dave




I found that some cheaper glazed tiles use a soft ceramic, but yes if you wear off the glaze and ceramic is good quality they are fine.I like the Willman Bell unglazed tiles at $9.00 a sq ft.

Sam

Edited by planet earth (01/08/13 11:35 AM)


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mark cowan
Vendor (Veritas Optics)
*****

Reged: 06/03/05

Loc: salem, OR
Re: Tiles tear off please help new [Re: planet earth]
      #5612138 - 01/08/13 03:10 PM

You have glazed clay tiles and once the glazing wears off they don't really work, sadly, as the brick-like stuff isn't hard enough. You want ceramic tiles which are essentially glazed all the way through.

Best,
Mark


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dave brock
professor emeritus


Reged: 06/06/08

Loc: Hamilton, New Zealand
Re: Tiles tear off please help new [Re: mark cowan]
      #5612154 - 01/08/13 03:19 PM

Hi Sam and Mark.
Rock says he is using ceramic tiles so I've taken him at his word. The ones I use have a glazing on the surface which wears off but under that is still very hard and I've had no problem with chipping, scratching etc.

Dave


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mark cowan
Vendor (Veritas Optics)
*****

Reged: 06/03/05

Loc: salem, OR
Re: Tiles tear off please help [Re: dave brock]
      #5612969 - 01/09/13 12:04 AM

I only said he has glazed tiles because I tried some many years ago and had exactly that experience - once the glaze wore through they were useless.

Best,
Mark


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MKV
Carpal Tunnel
*****

Reged: 01/20/11

Re: Tiles tear off please help new [Re: Rockā„¢]
      #5613094 - 01/09/13 02:35 AM

Rock, try using glass tiles like these. It's best to use clear ones. They also come preattached so they handle like one a sheet, and can be cut to size and epoxied at once. You can buy then in home improvement stores.

Or, as someone already mentioned, buy Willmann-Bell's solid ceramic hex tile. They are very affordable.

Mladen


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Rockā„¢
member


Reged: 03/18/12

Re: Tiles tear off please help new [Re: MKV]
      #5613124 - 01/09/13 03:58 AM

Thanks will try this one out

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Pinbout
Postmaster
*****

Reged: 02/22/10

Loc: nj
Re: Tiles tear off please help new [Re: Rockā„¢]
      #5613341 - 01/09/13 09:10 AM

but pennies are the cheapest and work really well, and I get less severe zones with them, but I'm spin grinding...



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