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Intumescent Coating with Thermal and Ignition Barriers

Intumescent paint is a fireproofing product applied inside buildings and on exterior structures in the form of a surface coating. Intumescent products are effective for these reasons because they expand exponentially when under extreme heat, such as that in the case of a fire, with some intumescent products expanding to as much as 100 X of the coating’s original thickness. The expanded product loses density, filling in gaps that could allow the fire to reach structural supports, susceptible pipes, or ports into the internal portions of the building.

To apply this, foam contractors need to possess the product itself, as well as a paint sprayer to coat the surfaces effectively. Graco’s fireproofing sprayers are a fantastic choice for these types of jobs, being able to handle the intumescent materials and being flexible enough for spraying materials composed of singular or plural components. These sprayers are also capable of handling jobs ranging from minor touch-ups to significant coating projects.

Thermal and Ignition Barrier Coatings

Determining the type of material needed will be based on whether you need a thermal barrier, ignition barrier, or both. Different ratings measure flame spread, how effectively the coating limits flammability, coating efficacy for delaying and resisting the effects of fire. All intumescent coating is intended to be fire retardant. A thermal barrier is typically used on foam to further prevent increased temperature when a fire or fire hazard is present. An ignition barrier prevents material from igniting, slowing the spread of fire.

Defining Fire Retardant Coating

Intumescent Coating is an affordable option for passive fire protection. According to SSPC’s 2011 Protective Coatings Glossary, a fire-retardant is a “ . . . product, under accepted methods of test, that will significantly: (1) reduce the rate of flame spread on the surface of a material to which it has been applied, or (2) resist ignition when exposed to high temperatures, or (3) insulate a substrate to which it has been applied and prolong the time required to reach its ignition, melting, or structural-weakening temperature” [ASTM D 16]. Flammability is defined as the ability to catch fire (a flammable material burns quickly and easily). Inflammability can sometimes mean “not flammable.” SSPC has separate definitions for a flammable aerosol, gas, liquid, and solid material, based on their respective properties to ignite and burn, according to various test methods. Moreover, an intumescent coating, according to SSPC’s definition, is “a fire-retardant coating that when heated forms a foam produced by nonflammable gases, such as carbon dioxide and ammonia. This [reaction] results in a thick, highly insulating layer of carbon (about 50 times as thick as the original coating) that serves to protect the coated substrate from fire. See also FIRE-RETARDANT [ASTM D 16].”

Applications Available with Our Intumescent Coating:

  • Walls, Foam, Attics, Crawl Spaces
  • Open cell insulation foam
  • Closed cell insulation foam
  • Bio Foams
  • Lumber
  • Oil Rigs, Boats, Ships
  • Industrial Worksites, Mining
  • Commercial Trucks, Machines
  • Factories
  • Storage tanks
  • Structural Steel

Intumescent Coating Material Manufacturers

ICP Group

Innovative Chemical Products Group (ICP Group) is a leading formulator and manufacturer of specialty coatings, adhesives, and sealants serving the construction and industrial end markets.

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