I have a need to spray, mix, pour or inject large amounts of foam into forms, 3 cubic feet or more at once, But i cant find any information on the products as to what activates it,
Will it activate inside of a air tight inviroment like a trashbag?
I have used the brand tough -r- stuff available at walmarts, for household needs before, but would like a little more information on expantion rate, if tempature critical for optium expantion and cure time? In addition to cost effectiveness,
how large of a hole should i leave to allow pressure build up to exit without form blowout?.
I have used Polyurethane Glue that is activated with water, and it foams up about 5 to 1 but it will not provide me with what i want, as i've wound up with a mess after the cure time, results with water pockets and pockets of non cured glue,
and cold joint layering is not an answer,, is there a method of creating foam to fill larger voids such as to fill the needs in this project?
the plan i have undertaken is to create large blocks of foam, to be constructed on site, of midivel reinactments, these blocks are 1ft x 1ft x 3ft and are attached with rods & pins. as a fake Castle wall to cover scaffolding where archers shoot arrows from the top of the walls.
great plan but no great results as of yet. thanks for any help