What technique can be used to effectively maintain the condition of fiberglass fixtures?

Using a crème compound is the most effective technique for maintaining the condition of fiberglass fixtures. This approach allows for a gentle yet thorough cleaning, which can help remove minor scratches and restore the glossy finish of fiberglass surfaces without damaging the material. Crème compounds often contain mild abrasives that can polish the surface without causing significant wear.

In contrast, heavy scrubbing can be too abrasive and may lead to scratches or dull the surface of the fiberglass, while oil application does not address cleaning but may leave a residue that attracts dirt. Rinsing with hot water is generally a good practice for cleaning, but it may not adequately restore the surface's shine or address the wear that can accumulate over time. Therefore, using a crème compound strikes the right balance of cleaning and maintenance for fiberglass fixtures.