One set chemicals came in 2 parts... 5 kgs each... i used about 2 sets... that would be 20kgs i guess... if i only used it in the areas i said b4... one set would be more than enough...
The chemicals are exothermic... and do not require oxygen or any other gases in the atmosphere to activate.... there fore the end product should weigh less than the original 2 ingredients.... by how much.... no idea....
