I used to work in a ship yard in seattle
,union bay. there was an insulation paint on/sprayon applacation, called DEVCO, basicly the product was a fluoropolymer. looked like a hard foam, the foam was sprayed in fuel tanks
for for anti vibration, and leak control. you have to have compressed air C-card , plus factory basic training, $35, at the dealership. I used to use the product in engine rooms with great sucess. just look up tank coatings on the net, this stuff has been tested,tryied by the military and shiping companys for 40 years.
back to the lead insulation! Iwill be removing lead cloth from a boat next week, it vibrated away from from a vertical hold posistion, I will try to find a fluoropolymer for that area, when I bided the job I noticed that mold
,rust, nuts, bolts had goten behind the product and did a bad number on the bulkhead. oh way the way this is dangerous! must use 2.5 psi air mask and jump suit