TLS melting?

TLS melting?

Post by Sjpolycl » Thu, 25 Mar 1999 04:00:00



Dear Group
I used some TLS on some pins, and baked them....when I wet sanded a week
later, the TLS turned white and soluable enough to wipe off.....then dried
again
when left to sit.
Has this happened to anyone else? Am I not supposed to wet sand?
Not exactly burning questions---more like melting ones!

Sarajane Helm
http://hometown.aol.com/sjpolyclay/index.htm

 
 
 

TLS melting?

Post by DBuck268 » Thu, 25 Mar 1999 04:00:00


Hi Sarajane,
  Weird! I've never had anything like that happen and I wet sand all the time.
What temperature were you baking at? I bake at 275-300,since the TLS is made to
cure at 300. It sounds like they might have been underbaked. Other than that,I
can only guess that maybe there might have been some residue on your brush that
interacted with the TLS? That's a long shot.

<< Dear Group
I used some TLS on some pins, and baked them....when I wet sanded a week
later, the TLS turned white and soluable enough to wipe off.....then dried
again
when left to sit.
Has this happened to anyone else? Am I not supposed to wet sand?
Not exactly burning questions---more like melting ones!

Sarajane Helm
http://hometown.aol.com/sjpolyclay/index.htm
 >>

Jody Bishel

 
 
 

TLS melting?

Post by Vicki L. Domansk » Fri, 26 Mar 1999 04:00:00


Quote:

> I used some TLS on some pins, and baked them....when I wet sanded a week
> later, the TLS turned white...

I had the same problem!  I pressed some textures into gold clay and carefully
filled the depressions with thin layers of TLS, baking between layers.  After
I _finally_ got the pieces basically level, I wet sanded to finish levelling
them off and in preparation for buffing.  But to my dismay the TLS turned
chalky white in many places, particularly in the depressions.  They are
actually still sitting on the tile I baked them on.  I'm hopeful that I can do
something to save them, but haven't bothered to try yet.

I know that people have sanded LS and TLS, did you guys wet or dry sand?

Inquiring minds want to know :-)

Vicki in Vancouver, Canada

http://www.geocities.com/soho/museum/8565
http://users.envise.com/clayamies/

 
 
 

TLS melting?

Post by Vicki L. Domansk » Fri, 26 Mar 1999 04:00:00


Quote:

>   Weird! I've never had anything like that happen and I wet sand all the time.
> What temperature were you baking at? I bake at 275-300,since the TLS is made to
> cure at 300. It sounds like they might have been underbaked.

Don't know about Sarajane, but I deliberately baked the TLS pieces a bit higher
than normal, ending with close to 300 because I knew the baking temp was higher.
But maybe I didn't leave them in long enough.

Quote:
> Other than that,I
> can only guess that maybe there might have been some residue on your brush that
> interacted with the TLS? That's a long shot.

There might have been some acrylic paint or water left in the bristles I suppose,
but I would have thought the brush should have been dry by the time I applied the
TLS.  But maybe not.  Guess I'll try again, since wet sanding obviously can be
done.

Thanks,

Vicki in Vancouver, Canada

http://www.geocities.com/soho/museum/8565
http://users.envise.com/clayamies/

 
 
 

TLS melting?

Post by DBuck268 » Fri, 26 Mar 1999 04:00:00


Hi Vicki,
   If there was water mixed into the TLS, it would turn to steam in the oven
and make white spots in the baked TLS. Usually this shows up right away when
they're baked. If anybody has some TLS that has been acting strangely,would you
send me a small sample so I can test it? Mysteries like this make me nervous!

<< There might have been some acrylic paint or water left in the bristles I
suppose,
but I would have thought the brush should have been dry by the time I applied
the
TLS.  But maybe not.  Guess I'll try again, since wet sanding obviously can be
done.

Thanks,

Vicki in Vancouver, Canada
 >>

Jody Bishel

 
 
 

TLS melting?

Post by Vicki L. Domansk » Fri, 26 Mar 1999 04:00:00


Quote:

>    If there was water mixed into the TLS, it would turn to steam in the oven
> and make white spots in the baked TLS. Usually this shows up right away when
> they're baked.

The pieces were definitely fine when they came out of the oven.  It was after I wet
sanded and the pieces started to dry that the white started to show.  I have a
couple of other pieces that I put too much TLS and ended up too opaque so I put
them aside.  On the weekend I'll try wet sanding them and see if the same thing
happens.

Vicki in Vancouver

http://www.geocities.com/soho/museum/8565
http://users.envise.com/clayamies/

 
 
 

TLS melting?

Post by Wire4Cla » Fri, 26 Mar 1999 04:00:00


Have you all tried rebaking the TLS after sanding?  The white effect might be a
result of sandpaper scuffing the surface.  Rebaking might melt the scuff marks
out and bring the shine back up.

This trick worked with sanded enamels so it might work here too.

Linda

 
 
 

TLS melting?

Post by Helen Fleisch » Fri, 26 Mar 1999 04:00:00



Quote:
>Dear Group
>I used some TLS on some pins, and baked them....when I wet sanded a week
>later, the TLS turned white and soluable enough to wipe off.....then dried
>again
>when left to sit.
>Has this happened to anyone else? Am I not supposed to wet sand?
>Not exactly burning questions---more like melting ones!

That almost sounds like you painted them with white glue (Sobo, etc)
instead of Liquid Sculpey!


 Helen "Halla" Fleischer,
 Fantasy & Fiber Artist in Fairland, MD USA

 
 
 

TLS melting?

Post by DBGis » Sat, 27 Mar 1999 04:00:00


I had just gotten a can of liquid sculpey and since it didn't have any
instructions I just baked it at the normal 250 that I bake most things at.  I
put some on a bead, baked and then put some more and baked.  When I wet sanded
and buffed it was perfect.  No white at all.  And I was not that careful with
it since I was experimenting.  

Diana G.