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Bulletin Board

painting spray booth maintenance [Jun 07,2016]
painting spray booth maintenance
Paint spray operation hazards include those created by carrier solvents' flammable vapors and the residue buildup from paint over spray. Infrequent cleaning and casual maintenance can destroy even the best designedand constructed equipment's effectiveness. Fire statistics show infrequent cleaning or poor maintenance asa contributing factor to the size of a loss or the cause of the loss itself. These maintenance tips are essential for the continued safe operation of a paint spray booth. 

Frequent Cleaning
All booth surfaces should be kept as free from over spray deposits and residues as practical. Surfaces should be cleaned daily if necessary. Automatic sprinkler heads or other fire protection devices should be given special attention, and exhaust dust interiors and fan blades should not be overlooked. Using special or "strippable" coating on interior booth walls will simplify cleaning.

Keep Filters Clean
Disposable filters should be changed frequently. Filter gauges should be used to detect filter condition and to indicate change intervals. Gauges should shut off the paint spray gun's supply if there is not enough air flowing through the filters. All discarded filters should be immediately removed to a safe, well-detached location, or placed in water-filled metal containers and removed at the end of the day.
Ventilation Ducts
Ductwork and fan blades should be checked for excessive paint residue accumulation, and any buildup should be removed promptly. Frequent cleaning may be an indication of filter problems.
Use Non-sparking Tools
Scrapers and all other tools and devices used for cleaning should be made of non-sparking materials.
Cleaning Solvents
Only solvents with flashpoints over 100°F should be used for cleaning purposes. The ventilation system should continue to operate during solvent cleaning. No more than one day's supply of solvents should be kept near the booth.

Residue Disposal
 Scrapings and sweepings should never be left in piles on the floor or in uncovered containers. They should be wet down with water and removed from the building once the cleaning operations are completed.
Safety Containers
Approved metal waste containers should be provided wherever rags or wastes are impregnated with finishing materials. The contents of these containers should be removed from the building at the end of each work shift or at least daily. All solvents should be stored in listed or approved safety cans. 
Combining Hazardous Materials
As a result of some combinations of materials igniting spontaneously, different types of coating materials should not be sprayed interchangeably. All of the residue should be removed from the spray booth and all ductwork before another coating material is used.

Safe Distances
 Maintain at least a 3-foot clear space around all spray booths. This is done for maintenance purposes and to reduce the chance of fire spreading either into the spray booth or away from it. Combustible
materials should not be stored near paint spraying operations.

Smoking Restrictions
NO SMOKING signs in large letters should be conspicuously posted near both the paint spraying operation and paint and solvent storage areas.