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

IURP*ODV&UDIWLQWKHFDWDO\VWV\VWHPLHKRVHV¿W- tings, etc.) because a hazardous chemical reaction may result between substituted parts and MEKP.

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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