I made a new canvas cover for an outdoor umbrella. Naturally I wanted to waterproof the canvas. If I can keep the sun from fading the color, that would be nice too.
The most eco friendly way to waterproof fabric is to coat it in melted beeswax. It's a messy process and I'm afraid the wax coating will melt in the high heat days of summer we like to describe as Hell's Front Porch.
A fabric waterproofing spray is the easiest and least messy way to go. Since I am doing this project outside while wearing a dust mask, I used this exact Scotchgard Sun and Water Shield Spray because it repels water and UV ray resistant. (Disclosure: I am including affiliate links for your convenience.) Although truthfully, I wasn't looking forward to the finger cramps and pain and uneven coating result of using a traditional aerosol spray can - until I hacked it!
When I noticed the button on the can of Scotchguard looked like it was the same size the large button on a can of spray paint, I had a flash of inspiration and hoped it would work. I made my aerosol spray can pain free by grabbing this exact wide button spray paint trigger, excuse me comfort grip from the garage and attached it to the Scotchguard can. It fit!
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