Among the merits of pitch is that it sticks to virtually anything, but this merit instantly becomes a liability when you get pitch on a home fixture just like a tub. The process would almost surely scratch on the bath even in the event that you were able to scrape it all off, which you typically can not. Because pitch dissolves in mineral spirits, you can generally remove it by scrubbing it using a rag saturated with that that is solvent — but there are options. Some work faster, others are noxious, and a few are designed especially for the task.
To get a coating of pitch attentively chip off as much as you possibly can using a steel paint scraper. Wedge the blade supporting the border of the pitch and pull on out the handle aggressively to split a part off. Take care to not rub against the scraper from the plastic, and eliminate just as much as you can part by section.
Soak a rag with both mineral spirits or kerosene and rub the pitch that stays off. They may be resolvents that readily dissolve pitch, however they produce fumes that are harmful, therefore put on a respirator and keep the windows open while with them. If it becomes alter the rag turns black and saturated with pitch. Do not use more than one of these resolvents on the pitch.
The pitch with alloy lubricant instead to using kerosene or mineral spirits. Allow it to soak in, then scrub off the pitch using a solution of dish soap and warm water. Make use of a plastic scrubber as an alternative to a steel one to prevent scraping on the bath.
Replace vegetable oil for an option for the spray lubricant. Wipe the oil on the pitch using a rag, allow it to soak in, then scrub off the pitch with water and dish soap. Oil might not work fast, but it will not give any fumes off.
Work with a commercial pitch-eliminating solvent as an option that is additional. It’s offered by automotive supply shops.