Can I use my existing spray foam equipment to raise concrete? Jen Mazur Oct 11, 2011 0000 Spray foam insulation contractors use similar equipment for polyurethane concrete lifting There is however, specific material and equipment necessary to start using this equipment for concrete raising. Everything necessary to begin raising concrete with existing spray foam equipment is available from HMI in the Concrete Raising Conversion kit. Comprehensive training is also available, to teach you how to raise concrete, bid jobs, and market this type of business. For those interested in making this transition, training is available without any commitment to buy. Qualifying purchases will provide FREE training. For more information about our training opportunity go to www.ConcreteRaisingEquipment.com/training Traditional spray foam does not react aggressively enough to raise concrete slabs. In order to raise concrete, you must use material specially designed to do so. HMI has a superior line of polyurethane material designed for different concrete raising applications.