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| silicone contamination ?? http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=19321 |
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| Author: | Jody [ Sat Oct 25, 2008 9:32 am ] |
| Post subject: | silicone contamination ?? |
I read about the possibility of silicone contamination on another thread, now I am wondering . i have been using a piece of furniture grade foam , the yellowish stuff that is used for cushions, as sort of a non slip matt , and to protect the underside of my work. could this type of foam be a source of contamination ? thanks Jody |
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| Author: | Sheldon Dingwall [ Sat Oct 25, 2008 10:48 am ] |
| Post subject: | Re: silicone contamination ?? |
If it's non-slip that tells you it's not likely a problem with the foam itself. However, if you've set anything on it that was contaminated i.e. a guitar you're repairing that someone used Pledge furniture polish on, then the foam could have picked that up. Some metal cutting fluids can cause problems too. |
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| Author: | Pat Foster [ Sat Oct 25, 2008 11:55 am ] |
| Post subject: | Re: silicone contamination ?? |
Jody, Yes, it could be. But your foam isn't likely to have silicone. The source of contamination could be a plasiticiser which keeps the material flexible, Those agents are present in just about everything made of plastic and can be about as destructive as silicone as far as getting a finish to stick. We hear about how leaving your guitar leaning against a naugahyde couch can cause lacquer to blister. That's the plasticizer migrating into the finish from the naugahyde. If you're in a Wal-mart or dollar store, run your fingers across something cheap made out of foam (like a non-skid bathtub mat) or plastic. Sometimes they feel slick or greasy. That's a release agent, used to make it easy to release from a mold during manufacture and are likely to to come from those non-skid bathtub mats. Some finishes are less affected, but it's best to be safe and avoid foams and plastics for padding. Pat |
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| Author: | Jody [ Sat Oct 25, 2008 1:03 pm ] |
| Post subject: | Re: silicone contamination ?? |
o.k. thanks Sheldon and Pat , will a naptha "bath" remove any residual contaminates?? thanks jody |
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| Author: | Fleck [ Sun Oct 26, 2008 2:41 am ] |
| Post subject: | Re: silicone contamination ?? |
I have good luck with a product called Polycracker for removing silicone. |
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| Author: | Martin Turner [ Sun Oct 26, 2008 5:36 am ] |
| Post subject: | Re: silicone contamination ?? |
Sounds like something you spray around your house if youve got a problem with Parrots. Fleck wrote: I have good luck with a product called Polycracker for removing silicone.
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| Author: | Fleck [ Sun Oct 26, 2008 12:47 pm ] |
| Post subject: | Re: silicone contamination ?? |
| http://www.repaintsupply.com/pd_polycracker.cfm
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| Author: | Mark Groza [ Sun Oct 26, 2008 5:18 pm ] |
| Post subject: | Re: silicone contamination ?? |
Jody wrote: o.k. thanks Sheldon and Pat , will a naptha "bath" remove any residual contaminates?? thanks jody acryli-clean DX330 from ppg will work. |
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