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Water beading on fabric after spraying with water repellant.

How To Waterproof Fabric

A simple 10 minute process to waterproof fabrics including upholstery, outdoor cushions, and tarps using a water repellant that won't change color. Spill proof, easy maintenance, and longevity.
Cook Time 10 minutes
Total Time 10 minutes
Servings 6 pillows
Author Rachel
Cost $20


  • Fabric ready for waterproofing Cleaned and vacuumed


  • Only spray outdoors! Lightly spray the entire surface, holding the sprayer 6″ to 8″ away from your fabric. Make sure to slightly overlap each pass to make sure the entire surface is covered. The surface should be evenly damp/wet, but no need to completely saturate. Let your project dry for about six- eight hours. Full sun is best for curing.
    Barstool saturated with waterproofing spray and sitting outside.
  • Test by pouring water on fabric. After it is dry again, reapply to any spots that did not fully bead.
    Water beading on fabric after spraying with water repellant.
  • When all fumes have dissipated, feel free to bring it back in the house. I let my bar stools sit out most of the day in full sun and it worked perfectly.
    Gray kitchen island with two toned cabinets in brown cherry.


How much material with this cover?
For 3 bar stools, I used the 16 oz bottle, and had about half left over. Because we are using the spray on cushioned, upholstered fabric, it takes more than a thinner tightly woven fabric like a tarp or tent. The smaller bottle would cover about a medium ottoman size and several pillows. The instructions say about 40 sq feet for heavy fabrics.
What types of fabrics does this work for?
This method works best for tightly woven fabrics that are used indoors or outdoors including cotton and synthetics.