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Thread: My Rubber Has Black Spots
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28th July 2018, 10:34 PM #1SENIOR MEMBER
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My Rubber Has Black Spots
Some six months ago, I mixed a batch of brown shellac in a glass jar that I keep in a cupboard and transfer some of it in a plastic sauce bottle that I use to charge my rubber which I keep in a screw top glass jar. I recently made a new rubber and after about two weeks, I noticed some black spots developing on it, almost like a very fine mold.
Does this suggest that my batch of shellac is contaminated or is it to do with the material I am using to make the rubber? The rubber is made of cheese cloth wrapped up in an old piece of T-shirt material.
Suggestions and advice will be gratefully received.
Yvan
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28th July 2018 10:34 PM # ADSGoogle Adsense Advertisement
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28th July 2018, 10:54 PM #2Member
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I think that you will find that the mold spots that are appearing is quite normal. All of my rubbers are the same and this does not hinder the performance.
router
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