Convert Your Spray Foam Business to Concrete Raising Eliminate downtime in your spray foam business. Any business that is in the spray foam business can easily convert their equipment to include concrete raising as a service. Let us show you how smooth a transition it is! At HMI, we specialize in offering the industry’s first Spray foam-to-Concrete Raising Conversion Kit for spray foam insulators looking to expand their market opportunity into the concrete raising and leveling business. Polyurethane concrete raising requires specially formulated material and equipment, conveniently packaged by us, so you can start raising concrete with your existing spray foam rig. Are you a spray foam business that is wondering if concrete raising is right for you? Check out our Training Seminar!