Recognised for their glossy finish, solid colours and affordability, acrylic bathtubs are standard in homes. Acrylic bathtubs consist of stretched and moulded plastic sheets that resist peeling, cracking and chipping. Although acrylic bathtubs are durable, they aren't immune to damage. Abrasive cleaning supplies, such as scouring pads and powders, can scratch an acrylic bathtub and make its lustrous surface appear dull and blemished. Fortunately, unlike porcelain, it is possible to restore a damaged acrylic bathtub to its original condition.
Clean the damaged acrylic before attempting any repairs. Squeeze 1/4 tsp of liquid dish soap onto a microfiber rag moistened with warm water. Wipe the soapy rag over the scratched acrylic to remove any grime.
Dampen a second microfiber rag with only warm water. Wipe the damp rag over the affected acrylic to flush away the soap. Dry the damaged area with a clean cotton towel.
Moisten a sheet of 1,500-grit sandpaper with water. Rub the wet sandpaper over the scratched acrylic surface, using circular motions. Sand the area until the scratch disappears.
Squeeze a dime-sized amount of metal polish onto a third microfiber rag. Using the rag, rub the polish into the acrylic surface to restore the bathtub's original glossy appearance. Buff the acrylic surface until the polish dissolves.
Remove light scratches by buffing them with the metal polish. You can substitute toothpaste for the metal polish.
Abrasive cleaners, acetone, white spirit and paint removers will damage the bathtub and void its warranty. Sanding with dry sandpaper will scratch the bathtub.