Is the lignin in wood frames a concern?

Discussion in 'Presentation & Marketing' started by walbergb, Dec 20, 2012.

  1. walbergb

    walbergb Subscriber

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    I make my own wood frames, usually out of maple. I don't usually stain and top coat the rabbet cut. Should I be concerned about the lignin from the raw wood adversely affecting the overmat?
     
  2. Paul Goutiere

    Paul Goutiere Subscriber

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    Any time the mat touches wood you can have a chemical change. The glass will prevent contact, assuming you intend to use glass or plexi.
     
  3. BMbikerider

    BMbikerider Member

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    A coat of varnish inside the rebate and the back edge will also make it sealed.
     
  4. DREW WILEY

    DREW WILEY Member

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    Never use conventional varnish unless its been thoroughly outgassed over a period of six months or
    more. The solvent fumes aren't good for the print; and water-based versions might not consitiute a suitable barrier layer. What you want to use it true shellac, the alcohol-soluble kind. It is a unique product which can't be synthetically duplicated. You could also apply foil tape to the rabbet, but
    shellac is simpler.
     
  5. fdi

    fdi Advertiser

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    Wood is a naturally acidic product. Most people are aware in the protective use of the mat in keeping the print off the glass, but it is also useful for keeping the print away from the rabbet of a wood frame. Lineco makes a frame sealing tape.
     
  6. Bob Carnie

    Bob Carnie Subscriber

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    + 1 on the frame sealing tape


     
  7. walbergb

    walbergb Subscriber

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    Thanks everyone. Frame seal tape sounds good:wink:
     
  8. thefizz

    thefizz Member

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    Interesting info.
     
  9. RalphLambrecht

    RalphLambrecht Subscriber

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    yes, stay away from wood and go for anodized(not painted)aluminum.
     
  10. Paul Goutiere

    Paul Goutiere Subscriber

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    Conservators will use foil (aluminum) duct tape for the inside of the rabbet which is inexpensive and really easy to find at most hardware stores. It is a tad
    hard to install because the aluminum can tear easily.

    Better yet is material like some stuff from "LINECO" called "I-Film Frame Sealing tape". It is archival and easier to install in the rabbet.
     
  11. rhcgn

    rhcgn Member

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  12. Paul Goutiere

    Paul Goutiere Subscriber

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  13. walbergb

    walbergb Subscriber

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    Thought about it, but woodworking is another hobby of mine, and it is so much fun making wood frames.
     
  14. georg16nik

    georg16nik Member

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    yes, its fun but If You are not a MASTER in bacteriology and parasitology, wood is not Your friend, not even close.