Thermo Solutions uses hydraulic powered proportioning pumps on every spray foam insulation project for their reliability and smooth operation. This helps us get the best results for your jobs. We specifically chose this type of proportioner because of its smooth pumping action. Other proportioners use bi-directional vertical drives, causing lag and inconsistency with the application. Whereas, the hydraulic side to side motion uses a single drive offering a smooth and consistent delivery for the best results.