I spilled water on my laptop this morning, while working on it, so I had to delay it's progress until I fixed it
These are general guidelines for anyone feeling a little lost. Finding out what other materials you need may take trials and practice. Further information may just take some google-ing. If you have any specific questions you really can't find the answer to then feel free to ask~
I'll try to make a full list of materials later on so be a little patient with me ^^
(I apologize, in advance, for any typos or grammar errors )
Unfortunately, I only use Mr.Super Clear sealant. But look up other tutorials to see what other people are using. I wouldn't use paper sealant because it doesn't spray as finely and I think it stays tacky sometimes (MSC dries quickly, is meant for dolls/figures/kits and sprays very finely), but if you have it on hand maybe you could practice with it and then remove it? I wouldn't spend the money buying a temporary sealant, though, so if you're just starting out I think looking up other people materials may be helpful.
I think liquitex has non-toxic sealers, but they come in liquid form and need a lot of practice and an airbrush (to achieve the spray effect) to use them on dolls. Even then, the spray could still be bad for inhaling so I really don't think there are any sealants you can use without some kind of protection. This one also happens to be the easiest/best rated sealant to use.