Reforming kinked synthetic yaki

I just want to double check this method before I go and try it.

I have an older commercial grade Rowenta steamer and a very large mane of slightly bent synthetic yaki that I know needs heat to straighten it. Problem is, I cannot hold a giant mask over a pot of warm water and dip and fix everything like that.

So the question is, could I possibly use the steamer to straighten everything back out again with a little help from a brush? I would assume it would work, but I want to make sure I won't melt it inadvertently or do some other nonsense.