I wonder why you couldn't use Zinser Primer? It works on sheet rock, etc. to block stain and odor. Use a dry paint or stencil technique to cover the stain but not plug the hole.... Let it dry. Let me know how that works.
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cleaning moldy needlework by: Anonymous
Dear Valerie -
Try soaking it in Oxiclean (found with the laundry items at the grocery store). This is one of those enzyme cleaners advertised on TV. My sister-in-law had a needlepoint piece that was dear to her, but had framed it without glass. Since her household is filled with heavy smokers, the piece was extremely dirty, yellowed and also had duct tape residue on the back. I would allow it to soak overnight in an Oxiclean solution, rinse it, then soak again. I must have done this seven or eight times, but eventually, this piece came clean and now looks great. Good luck!
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Removing mould from fabric by: Carol
Hi,
Oh dear, that is a shame about your needlepoint canvas with mould stains.
You seem to have already done what I would try, which is to take the piece outside and brush off the mould spores. Don't do this in the house!
Leaving the piece out in the fresh air and sunshine can help to kill the mould spores and remove the musty smell.
I believe most hand painted needlepoint canvas is painted with acrylic paint, or sometimes oil, both of which are waterproof.
Does anyone else have any ideas for solving this problem?