While this portable spray foam proportioner component may seem simple in concept, for some reason this has been made complicated through the use of transfer pumps, bad piping and the lack of understanding of how hard it is to work with the “ A “ side of the chemistry.
So once again, what are you looking for when it comes to chemical feed concepts for your future portable spray foam machine?
· Less is more. Just get the chemicals to the gun
· Stainless steel for all of the feed parts
· Few, if any pipe fittings that bend or restrict flow
· Cleanable and easy to repair
· Use gravity to feed the chemicals when possible