What is Spray Foam Insulaion Equipment

Spray Foam Insulation Equipment is used to process a two part polyurethane foam and other types of plural component coatings at a 1:1 ratio by providing the necessary pressure, heat and atomization to manufacture open and closed cell spray foam insulation. The two part polyurethane foam is typically sold in 55 gallon drums, 1 part A (Iso) to 1 part B (resin) and is often referred to as a set of foam when purchased.

Trailers and or Box Trucks (Known as a Mobile Spray Foam Rig) containing, a stationary Generator, Air compressor, Air dryer, Plural Component Proportioner, Drum Pumps, heated hoses, plural component spray gun, 55 gallon drum heaters, spare parts and Personal protection Equipment (PPE) all defines what is spray foam insulation equipment and are the main fundamentals of owning a spray foam business.

The mobile spray foam rig transports the polyurethane foam product in 55 gallon drums and equipment to and from the job site. The generator provides an energy source to power the plural component proportioner, air compressor unless a gas compressor is used, lighting and electrical outlets throughout the spray rig. The air compressor is used to power the air motor on the drum pumps and the plural component spray guns triggering mechanism. The air dryer is used to filter out any moisture contamination from the air compressor. The drum pumps (Known as transfer Pumps) supply the (A) and (B) chemicals from the drums to the plural component proportioner (Known as a spray foam machine)

There are three different types of spray foam machines having a single drive system powered by either (Hydraulic, Air or Electric) The drive system in return moves two pumps (Known as proportioning pumps) simultaneously creating high pressure that is needed to process spray foam insulation, typically around 1,000 psi to 1,500 psi. After this process the A and B components are heated to the chemical manufactures recommendations ranging from 120 to 140 degrees. This is done with heaters (Known as Pre-Heaters). The pre-heaters help to thin the viscosity of the (A) and (B) materials and provide the necessary heat to help accelerate the chemical reaction when mixed.
From the pre-heaters the heated material temperatures are maintained with separate (A) and (B) insulated heated hoses (Known as foam hose) to the plural component spray gun. The plural component spray gun (Known as the spray foam gun) is where the (A) and (B) chemicals are atomized in a mixing chamber in return manufacturing spray foam insulation.


55 gallon drum heaters are also part of spray foam insulation equipment. The drum heaters are utilized to pre-warm the (A) and (B) components to manufactures drum temperatures recommendations and is especially necessary to thin the viscosity in the drums when used in cold weather environments. This assures that the transfer pumps can deliver the chemicals to the spray foam machine.

Spare parts are recommended to have on hand, assortment of mixing chambers sizes for the spray foam gun allows for output and spray pattern options as well as extra O-ring rebuild kits for the gun. O-Rings are a common wear item in spray foam guns. Other common items are check valves, filters, side seals and springs.

The number one piece of equipment that is most important above all when owning and operating spray foam insulation equipment is Personal Protection Equipment (PPE) and proper utilization of it.

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