How to Seal Vinyl Fabric


Whether you need to seal a vinyl cover on a boat or a vinyl porch umbrella, it is important to seal the fabric to repel moisture. Moisture from humidity and rain causes mold and mildew, which will damage vinyl fabric. Most vinyl fabric sealers are made to withstand outdoor environmental elements and repel dust and dirt, which makes everyday cleaning easier and increases the life of the fabric. Before sealing any type of vinyl fabric, it is important to clean the fabric first.

Things You'll Need

  • Bowl
  • Liquid dish soap
  • Soft cloths
  • Spray vinyl fabric sealer
  • Mix a solution of 1 part liquid dish soap and 10 parts warm water. Clean the vinyl surface with the solution and a soft cloth to remove light soiling.

  • Wipe away excess soap with a dampened cloth and let the vinyl dry.

  • Spray vinyl fabric sealer over the entire surface. Be sure to follow the manufacturer's directions on the spray bottle before application.

  • Wipe the surface dry with a soft cloth to seal the vinyl.

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