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Thread: Tru Oil or No?

  1. #101
    Registered User Jim Baker's Avatar
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    Default Re: Tru Oil or No?

    Arnt: Do you know if tru oil will adhere to polyurethane?
    Jim Baker

  2. #102
    Registered User Arnt's Avatar
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    Default Re: Tru Oil or No?

    I haven't tried it, I guess its one of those test-on-scrap questions... If it adheres, and doesn't violate the "fat over lean" rule, why not.

  3. #103

    Default Re: Tru Oil or No?

    Not asking why you would want to, but that sounds like a job for shellac, after breaking the glaze of the PU.

  4. #104
    Registered User Jim Baker's Avatar
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    Default Re: Tru Oil or No?

    Actually I just received some shellac flakes from a place called Wood Essence. I also got hold of some denatured alcohol. So, I'll be trying that on an off cut to see how fresh shellac and the proper thinner perform compared to premixed and shellac mixed with laquer thinner. (that is what is available from Lee Valley here in Canada). Fingers crossed.
    Jim Baker

  5. #105

    Default Re: Tru Oil or No?

    CONTAINS: 65-75% METHANOL (67-56-1)[200-659-6],
    20-30% ETHANOL (64-17-5)[200-578-6],
    < 10% ISOPROPANOL (67-63-0)[200-661-7],
    < 10% METHYL ISOBUTYL KETONE (108-10-1)[203-550-1]


    I found it hard to believe, but a Google search on 'denatured alcohol' and MSDS confirmed that a substantial minority of "denatured alcohol" products located in this way contain 50% or more methyl alcohol. Which I think should be criminal misrepresentation. One can, however, consult the MSDS and find a suitable product. There are plenty, apparently, that still list the traditional 90% ethanol (approximately) and lesser amounts of the poison. This may be a trend arising because of the rising price of ethyl alcohol being used as fuel.

    Isopropanol doesn't naturally contain water (as one might say of ethanol), but any sold as "rubbing alcohol" will have about 30% water in it, making it useless for many purposes. I can't think why isopropanol would be considered more "toxic" than any product with methanol added to it.

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