alienentity
Illuminator
- Joined
- Feb 21, 2009
- Messages
- 4,325
Further to what I was saying, the rust forms in only a couple of minutes but only a very thin layer which is usually removed the next time the blade is used. It might take a couple of days in the right conditions for it to become unusable. I think part of it is due to the fine scoring on the surface from the abrasion (still feels smooth though) so I'm wondering if anything could have been effectively sand blasted in some way by the dust and debris and if anything in the dust when mixed with water would be acidic.
What was it that rusted?
Structural steel debris and exposed metal on burned-out cars I think.
The vast quantities of dust may have had just such a corrosive effect, they certainly should be included in the possible causes anyway.
Here's a picture I found with two cars, one of which burned down the carport it was in. I think it was an arson case. You can see both vehicles are totally rusted, and the picture must've been taken shortly after the fire, since it hasn't been cleaned up yet. Almost guaranteed the fire dept poured water on the fire as well.
OH DEAR! I just realized the steel beams of the garage have....sagged! from the heat. This picture may debunk two myths at once!

Last edited: