Results 1 to 11 of 11

Thread: Finishes compatible with disinfectants

  1. #1
    Join Date
    Oct 2008
    Location
    Columbus, OH
    Posts
    1,888

    Finishes compatible with disinfectants

    Got to wondering this morning. With our new reality of living with viral outbreaks, and everything being wiped down with disinfectant wipes (bleach, lysol,, etc), what finishes do and don't hold up to these cleaning agents? I'm thinking about child toys to moderately handled pices like decorative bowls, salt/pepper grinders, etc. My guess would be that lacquer would be best. How do wax finishes hold up?

    Thanks!
    Brian

    "Any intelligent fool can make things bigger or more complicated...it takes a touch of genius and a lot of courage to move in the opposite direction." - E.F. Schumacher

  2. #2
    Bleach and alcohol are tough on most finishes.

  3. #3
    Join Date
    Dec 2010
    Location
    WNY
    Posts
    6,607
    Anything with ammonia in it, like most household cleaners contain, is really bad on most finishes, especially shellac. Lacquer is not a very chemically durable finish, actually, unless it's a catalyzed one. On the other hand, solvent based varnishes will tolerate a quick wipe with those cleaners and with alcohol or water with bleach in it. Think bar top finishes.

    John

  4. #4
    Join Date
    Apr 2013
    Location
    Kansas City
    Posts
    1,423
    wax is always a temporary finish.

  5. #5
    Join Date
    Mar 2003
    Location
    SE PA - Central Bucks County
    Posts
    52,833
    The most durable finishes are going to be some catalyzed products, 2K polyester products and some finishes with additional crosslinking chemicals added to them for greater resistance. No finish like lacquer or shellac is going to hold up...they don't cure/coalesce/crosslink and will re-dissolve with many of the chemicals commonly used for cleaning.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  6. #6
    Join Date
    Aug 2015
    Location
    N. Texas
    Posts
    1,583
    Quote Originally Posted by Brian Tymchak View Post
    .. what finishes do and don't hold up to these cleaning agents? ..
    In a chemical plant, for outdoor use we applied 1-2 coats of S-W epoxy (mechanical strength), then top-coated with S-W white high-build aliphatic polyurethane (largely for the UV resistance). It was bulletproof to virtually all solvents, but pricey.

    Quick search shows this as similar clear option? If anything close to the S-W product, toys should last forever, or at least until age 4. Maybe.
    Molann an obair an saor.

    If Heaven ain't alot like Texas, I don't wanna go. - Hank Jr.

  7. #7
    Join Date
    Oct 2008
    Location
    Columbus, OH
    Posts
    1,888
    Quote Originally Posted by Jim Becker View Post
    The most durable finishes are going to be some catalyzed products, 2K polyester products and some finishes with additional crosslinking chemicals added to them for greater resistance. No finish like lacquer or shellac is going to hold up...they don't cure/coalesce/crosslink and will re-dissolve with many of the chemicals commonly used for cleaning.
    Jim, can you provide a recommendation? This is an area I don't know much about. Any chance any of these products are available in small sizes, or even spray cans?

    Thanks!
    Brian

    "Any intelligent fool can make things bigger or more complicated...it takes a touch of genius and a lot of courage to move in the opposite direction." - E.F. Schumacher

  8. #8
    Join Date
    Mar 2003
    Location
    SE PA - Central Bucks County
    Posts
    52,833
    You can buy some 2K products in spray cans online, but I'm not up on the various suppliers. You can get products like Target Coatings EM9300 polyester in quarts plus get the crosslinker. Same for the EM8000cv conversion varnish. General Finishes products are also available in quarts.
    --

    The most expensive tool is the one you buy "cheaply" and often...

  9. #9
    Join Date
    Oct 2008
    Location
    Columbus, OH
    Posts
    1,888
    Quote Originally Posted by Jim Becker View Post
    You can buy some 2K products in spray cans online, but I'm not up on the various suppliers. You can get products like Target Coatings EM9300 polyester in quarts plus get the crosslinker. Same for the EM8000cv conversion varnish. General Finishes products are also available in quarts.
    Thanks Jim!
    Brian

    "Any intelligent fool can make things bigger or more complicated...it takes a touch of genius and a lot of courage to move in the opposite direction." - E.F. Schumacher

  10. #10
    Join Date
    Mar 2003
    Location
    San Francisco, CA
    Posts
    9,147
    Before you commit to catalyzed finishes, research their health hazards. Conversion varnishes depend upon formaldehyde. 2K urethanes depend upon isocyanates. Those are both very hard on the human body. In commercial use -- cabinet shops, auto body shops -- those finishes are used only in spray booths which remove those chemicals from the exhaust air, and the painters wear certified protective gear. Perhaps hobby use isn't enough exposure to require that sort of stuff, but it has been enough to keep me with good ol' solvent-based varnish. It takes days to finish a piece, which is why commercial shops don't use it, but I appreciate the safety.

  11. #11
    Join Date
    Oct 2008
    Location
    Columbus, OH
    Posts
    1,888
    Quote Originally Posted by Jamie Buxton View Post
    Before you commit to catalyzed finishes, research their health hazards. Conversion varnishes depend upon formaldehyde. 2K urethanes depend upon isocyanates. Those are both very hard on the human body. In commercial use -- cabinet shops, auto body shops -- those finishes are used only in spray booths which remove those chemicals from the exhaust air, and the painters wear certified protective gear. Perhaps hobby use isn't enough exposure to require that sort of stuff, but it has been enough to keep me with good ol' solvent-based varnish. It takes days to finish a piece, which is why commercial shops don't use it, but I appreciate the safety.
    Thanks for the heads up Jamie. Something to think about.
    Brian

    "Any intelligent fool can make things bigger or more complicated...it takes a touch of genius and a lot of courage to move in the opposite direction." - E.F. Schumacher

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •