this post was submitted on 08 Sep 2024
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Various recipes say it both dyes and adds to waterproofing by filling in the gaps in the weave.
Now that I think about it, I'm wondering if the weave was too loose to hold the particles. I wanted something lighter than a full weight canvas so I used a seemingly tightly woven linen tablecloth. I hot washed it to shrink/tighten it further before applying the treatment, but I've noticed I can still see light through the fabric.
We live and learn I guess. Bit of an expensive experiment, but it's an excuse to try again. I prefer the natural linseed colour to the red of the iron oxide anyway.
Once its dry you might be able to wash it off so it doesn't stain when you touch it
So I hung out out in the weather and sure enough most of it is more dry now (even after a few bits of rain) and the boys that are dry don't shed powder. There are still bits of oil damp spots, and they still release powder. Patience I guess.