Hi,
I've recently bought a new house and the bath tub seems really easy to stain - even just with conditioner or shower gel drips.
I don't think its acrylic - the surface is matt and feels slightly rough - I suspect it must be slightly porous which is why it absorbs colours so quickly. It looks awful compared with the rest of the bathroom suite which is ceramic.
Before I replace the bath does anyone have any suggestions for what it is made of and how to clean it??