Fibreglass showers are recognised for their durability, glossy appearance and simple maintenance. However, shower surfaces can become marred with sticky adhesive from non-slip appliqués and stickers. Dirty water, bacteria, and airborne dust particles become trapped in adhesive, causing the sticky residue to become dark and gummy. The adhesives cause fibreglass showers to appear dingy and improperly maintained. The longer adhesives remain on fibreglass, the more difficult they are to remove. Fortunately, certain solutions can effectively remove adhesives from fibreglass showers.
Scrape off as much adhesive as possible using a plastic scraper.
Spray commercial adhesive remover directly onto the remaining adhesive. Follow the manufacturer's directions on the product's label. Normally, you should keep the adhesive remover on the fibreglass surface for 30 minutes to soften the adhesive.
Wipe off the adhesive and solution with a paper towel. Thoroughly dry the fibreglass surface with clean paper towels.
Inspect the fibreglass for any remaining adhesive. Repeat the cleaning process if traces of adhesive remain.
Fill a plastic pail with 1 gallon of warm water. Add 1 tsp of liquid dish soap to the water. Thoroughly mix the solution.
Dampen a nonabrasive sponge in the soapy water. Gently scrub the fibreglass shower surface with the soapy sponge to remove any remaining dirt or residue. Frequently rinse the sponge with water to prevent reapplying grime to the fibreglass.
Rinse the fibreglass surface with warm water. Thoroughly dry the fibreglass with a clean terry cloth towel.
You can substitute a commercial all-purpose cleaner for the soapy water. You can substitute a microfiber cloth or nylon brush for the nonabrasive sponge.
Do not use a metal scraper or other abrasive supplies, as the fibreglass may become scratched. Do not use scouring powders or other abrasive cleaning products, as the fibreglass may become damaged.