wd-40 is rated to 300f, so it can withstand it. It's just wd-40 is not a very good lubricant -- it's much better as a water displacer than anything else
When i slammed my head i blacked out, then i saw a white haze as people run up to me and werw helping me out, then a off duty paramedic saw and ram over to help and i layed there not able to move or breath