Applying weapon blanch to unarmed stikes?

[Crisischild]

"A brawler’s unarmed strike is treated as both a
manufactured weapon and a natural weapon for the purpose
of spells and effects that modify either manufactured
weapons or natural weapons."

"When poured on a weapon and placed over a hot flame for a full round, they melt and form a temporary coating on the weapon."

Can I apply weapon blanch's to my fists/body?
How much damage does 'a hot flame' do per round?
I know you can't enchant fists since they're not masterwork, but blanch's don't need masterwork to work.

[lemeres]

I assume 1d6 damage for a fire.

Plus horrific scars, since you are both burning your hands and covering them in melted metal.

[Human Fighter]

I just imagine you looking like the silver surfer

[Krodjin]

You're better off putting blanche on ammunition; it goes 10x further!

Otherwise I'd go with the 1d6 fire damage - sounds about right.