Graco Inc GC-1392 Z Important Safety Information, Methyl Ethyl Ketone Peroxide Mekp

Important Safety Information

Methyl Ethyl Ketone Peroxide (MEKP)

MEKP is among the more hazardous materials found in commercial channels. Proper handling of the “unstable (reactive)” chemicals presents a

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valuable to the plastics industry in producing the curing reaction of polyester resins and gel-coats also produces the hazards which require great care and caution in its storage, transportation, handling, processing and disposal.

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disposal of MEKP and other hazardous materials used in the laminating operation.

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Read material manufacturer’s warnings and

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Contaminated MEKP can become explosive. Prevent contamination of MEKP with other materi- als, which includes, but is not limited to polyester overspray, polymerization accelerators and promot- ers, and non-stainless metals. Even small amounts

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tamination reactions can cause it to reach what is called its Self-Accelerating Decompisition Tempera-

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remain. Spillage can heat up to the point of self- ignition. Dispose in accordance with manufacture’s recommendation.

Store MEKP in a cool, dry and well-ventilated area in the original containers away from direct sunlight and away from other chemicals. It is strongly recom- mended that the storage temperature remain below 86° F (30° C). Heat will increase the potential for ex- plosive decomposition. Refer to NFPA 432.

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Current catalysts are premixed and do not require any diluents. GlasCraft strongly recommends that dilu- ents not be used. Diluants add to the possibility of con- taminates entering the catalyst system. Never dilute MEKP with acetone or any solvent since this can pro-

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Use only original equipment or equivalent parts

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To prevent contact with MEKP, appropriate personal protective equipment, including chemically imperme- able gloves, boots, aprons and goggles are required

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Polyester Resins and Gel-Coats

Spraying materials containing polyester resin and gel-coats creates potentially harmful mist, vapors and atomized particulates. Prevent inhalation by providing

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Read the material manufacturer’s warnings and ma-

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To prevent contact with polyester resins and gel- coats, appropriate personal protective equipment, including chemically impermeable gloves, boots, aprons and goggles are required for everyone in the

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Spraying and Lamination Operations

Remove all accumulations of overspray, FRP sand- ings, etc. from the building as they occur. If this waste

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If cleaning solvents are required, read material

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GlasCraft recommends that you consult OSHA Sections 1910.94, 1910.106, 1910.107 and NFPA No. 33, Chapter 16,17, and NFPA No. 91 for further guidance.

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