Check the surface of the canvas tent. Sprinkle some water on the fabric. If the fabric absorbs the water, it is ready for treatment. If the water beads and rolls off, you do not need to apply Thompson's WaterSeal.
Test spray on an inconspicuous piece of fabric to ensure that the fabric will not be damaged or discolored. Spray until surface is damp. Wipe with a light-colored cloth. If color is transferred, do not use the product.
Protect surrounding areas from overspray by laying out newspapers. Ensure that the area is well ventilated.
Clean and dry the surface to be sprayed, as needed. Hold can 6 to 8 inches from the surface and use long, even strokes to spray the fabric. Do not soak the fabric. Allow a drying time of four hours. Apply a second coat of Thompson's WaterSeal.
Wait 24 hours before exposure to water.
