Plasti-kote krystal clear instead of Krylon??

I can't find krylon here in the uk, someone said b&q but I went to my local b&q and searched everywhere for ages and couldnt find it! I also asked and they looked at me like I was crazy and sent me to the aisle with plasti-kote crystal clear coating, saying it was the same thing. I also searched every craft store and found only plasti-kote. I was going to buy it but read on the back and it said 'WARNING, highly flammable, spray in well ventilated area etc'

Does it say this on the krylon sealant? This scared me lol. I looked up the uses of it and researched it and it seems to be the same thing. I just bleached the knots on the front part of my wig and it actually kind of worked!!! most that I covered bleached I think, and none of the roots! which I am SO happy about as it limits my faux bleaching. But now I want a strong! sealant because I want to wear my wig tomorrow night. 

At the moment I am using Got2Bglued freezing hairspray (2 coats) but feel I also need an acrylic spray now that I have bleached? Is this stuff safe to put on a wig which I put on my head? I'd really appreciate any help.