N.Y.C. Admin. Code § FC 2409: Section FC 2409: Indoor Manufacturing of Reinforced Plastics

2409.1 General.

Indoor manufacturing processes involving spray or hand application of reinforced plastics and using more than 5 gallons (19 L) of resin in a 24-hour period shall be conducted in accordance with this section and FC 2408.

2409.2 Design and installation.

Indoor manufacturing processes involving spray or hand application of reinforced plastics shall be conducted in a facility designed and installed in compliance with the requirements of this section.

2409.2.1 Fire protection.

Resin application areas shall be protected throughout by a sprinkler system. The sprinkler system design shall not be less than that required for Ordinary Hazard, Group 2, with a minimum design area of 3,000 square feet (279 m

2

). Where the materials or storage arrangements are required by other regulations to be provided with a higher level of sprinkler system protection, the higher level of sprinkler system protection shall be provided.

2409.2.2 Ventilation.

Mechanical ventilation shall be provided in resin application areas in accordance with Chapter 5 of the Mechanical Code. The ventilation rate shall be adequate to maintain the concentration of flammable vapors in the resin application area at or below 25 percent of the lower flammable limit (LFL).

Exception: Mechanical ventilation is not required for buildings that are unenclosed for at least 75 percent of the perimeter.

2409.2.2.1 Local ventilation.

Local ventilation shall additionally be provided inside of workpieces where personnel will be under or inside of the workpiece.

2409.2.3 Sources of ignition.

Sources of ignition in resin application areas shall comply with the requirements of FC 2403.2.

2409.3 Operation and maintenance.

Facilities in which indoor manufacturing processes involving spray or hand application of reinforced plastics are conducted shall be operated and maintained in compliance with the requirements of this section and FC 2403.3 and 2403.4.

2409.3.1 Handling of excess catalyzed resin.

A noncombustible, open-top container shall be provided for disposal of excess catalyzed resin. Excess catalyzed resin shall be drained into the container while still in the liquid state. Enough water shall be provided in the container to maintain a minimum 2-inch (51-mm) water layer over contained resin.

2409.3.2 Control of overchop.

In areas where chopper guns are used, exposed wall and floor surfaces shall be covered with paper, polyethylene film or other approved material to allow for removal of overchop. Overchop shall be allowed to cure for not less than 4 hours prior to removal of the wall and floor coverings. Used coverings shall be placed in a noncombustible container and removed from the premises.

2409.3.3 Storage and use of hazardous materials.

Storage and use of organic peroxides shall be in accordance with FC 2408 and FC Chapter 62. Storage and use of flammable and combustible liquids shall be in accordance with FC Chapter 57. Storage and use of unstable (reactive) materials shall be in accordance with FC Chapter 66.