Fiberglass tubs can become dull and lose their white color over time due to soap scum, hard water, and stains. To make a fiberglass tub white again, follow a thorough cleaning process with the right materials and techniques to prevent damage.
This guide covers how to evaluate the tub's discoloration, choose the correct cleaners, apply them properly, tackle tough stains, and keep the tub white.
Following these steps will help restore the tub's original white finish and maintain its cleanliness.
Assessing Tub Discoloration
Before cleaning a fiberglass tub, assess the discoloration's severity and type. Fiberglass is prone to yellowing due to soap residue, minerals, and environmental reactions. To choose the right cleaning method, first determine whether the stains are surface-level or deeper. Light stains typically come off easily, while deeper yellow or brown discoloration may require stronger cleaners or techniques.
Observe how the tub's color has changed over time. If the tub has slowly become dull or yellow, the cleaning process may be simple. Sudden or uneven discoloration might indicate fiberglass damage or mold, needing a specialized approach.
Check the tub for damage like cracks or scratches, as these can hold dirt and bacteria and affect cleaning.
Choosing Appropriate Cleaners
Choosing the right cleaner is vital for effectively cleaning a fiberglass tub while avoiding damage. Fiberglass tubs are susceptible to scratching and dulling if abrasive cleaners are used.
For routine cleaning, mix white vinegar with water. This mixture works well against hard water stains. Vinegar gently dissolves mineral deposits without harsh chemicals. For soap scum or light stains, a paste made from baking soda can be applied for a non-abrasive scrub.
For tougher stains, use a specialized fiberglass cleaner like Rog3, CLR Kitchen and Bath Cleaner, or a similar Bath and Kitchen spray. These products are designed to combat hard water and soap scum. Always follow the manufacturer's instructions to protect the tub's finish.
In extreme cases, Easy Off No Fume Oven Cleaner in the blue can may be effective. While not a standard fiberglass cleaner, it can clean fiberglass tubs. Use it sparingly, in a well-ventilated area, and don't let it sit on the surface too long to avoid damage.
Applying Cleaning Solutions
To clean a fiberglass tub and restore its white color, start by applying a suitable cleaning solution. White vinegar is effective for general cleaning and removing stains, as its acidity dissolves soap scum and water spots. For more stubborn stains, hydrogen peroxide can be used for its bleaching effect. Before using any cleaner, test it on a small, hidden section to prevent damage, particularly if the tub is made of materials other than fiberglass, like acrylic.
For a bathtub that hasn't been cleaned in a while, a mix of baking soda and vinegar can remove built-up grime. Sprinkle baking soda on the stain, add vinegar, let the reaction occur, then gently scrub with a non-abrasive sponge and rinse well.
If these methods fail, consider commercial products such as Easy Off No Fume Oven Cleaner, CLR Kitchen and Bath Cleaner, or specific products like Rog3, following the manufacturer's instructions. Always ventilate the area when cleaning with vinegar or chemicals for safety.
Addressing Stubborn Stains
Some fiberglass tubs may retain stains even after initial cleaning. To remove these, white vinegar can be effective due to its acidity, which helps dissolve mineral deposits and soap scum.
For more resistant stains, mix hydrogen peroxide with water in equal parts and add cream of tartar to form a thick paste. Apply this to the stains, let it sit, and then gently scrub with a non-abrasive pad to avoid damaging the fiberglass.
For very stubborn stains, consider using specialty cleaners like Rog3, designed for fiberglass. Apply as per the instructions, allowing enough time for the cleaner to work.
Do not use steel wool or other abrasive tools that could scratch the tub. Instead, opt for dish sponges or soft bathroom brushes. After treatment, rinse the tub with cold water to remove any remaining cleaner and the loosened stains.
Maintaining Tub Whiteness
To maintain the whiteness of a fiberglass tub, it is important to clean it regularly with non-abrasive materials to prevent grime and soap scum accumulation. If refinishing the tub, use a fiberglass gel coat and follow the kit's instructions closely, while wearing protective gear and ensuring the area is well-ventilated to handle the chemicals safely.
Good ventilation is crucial to prevent mold and mildew, which can stain the tub. Use an exhaust fan or open a window after showering to keep the area dry.
Additionally, maintain the plumbing to avoid mineral deposits from hard water, which can cause stains.
