For sure, POR-15 has iso-cyanates. YOU MUST WEAR SUPPLIED-AIR when spraying them to avoid them. Nothing filters them out. They can cause long term damage. It just isn't worth it take a chance. If you were applying with a brush in good ventilation you might get away with a mask, but why take a chance? Your health is far to valuable. You young guys are bullet-proof, I know, but you do want to get old, don't you? Sorry for the rant. Safety is drilled into me at work and I can't see doing anything differant at home. Hope you feel better soon.
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Michael
1971 GMC Suburban "Crusty"
2000 GMC Sierra 1500 2wd
1978 Scout II
1992 Passat Syncro
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