Product Description:

• NOROX? MCP-75 is a solution of methyl ethyl ketone peroxide and isopropyl phenyl hydroperoxide.
• Liquid polymerization initiator specially designed for curing unsaturated polyester and vinyl ester resins at room temperature.
• Features low exothermic peaks, longer gel times, excellent final cure and avoids in-plant mixing of peroxides.
• Has very low levels of impurities including water, hydrogen peroxide and butanone.

Typical Characteristics:

• Active Oxygen: 9.0%, max.
• Form: Liquid
• Color: light yellow
• Specific gravity: 1.10 (25°C)
• Flash Point (SETA C.C.): 150°F (66°C), min.
• Soluble in oxidizing organic solvents, slightly soluble in water
• Storage temperature: <80°F

Areas of application:

• NOROX? MCP-75 is suitable for curing unsaturated polyester and vinyl ester resins with reduced exothermic peaks during curing.
• Suitable for marine laminated resin (pre-treated), etc.
• Gel times are slightly longer than standard NOROX MEKP products, but the final cure is usually better.

Storage and processing:

• Recommended storage temperature is below 80°F, optimal storage temperature is below 70°F.
• Store away from combustibles, heat, sparks and ignition sources, and away from direct sunlight.
• Leaking containers should be dealt with quickly and should not be stored in refrigerators.
• Check date of manufacture before use, keep away from heat, fire and sparks, avoid inhaling vapors, dilution is not recommended.
• Avoid contact with contaminants and avoid contact with incompatible materials.

First aid measures:

• EYE CONTACT: wash immediately with plenty of water, medical attention required.
• Skin contact: wash with soap and water.
• INGESTION: Drink large amounts of milk or water and seek immediate medical attention.

Spills and fires:

• Spills should be immediately absorbed, packaged and disposed of.
• Peroxides may burn or decompose dangerously in the event of a spill.
• Peroxides will ignite and use water to extinguish the fire, or carbon dioxide, foam, or dry powder can be used to extinguish the fire.
• Sources of ignition close to storage areas should be cooled by spraying with water.

Packaging and transportation:

• Standard package sizes: 4x8 lb. containers, 4x4kg polyethylene bottles, 40 lb. or 20kg Hedpack.
• Supplied through a national distribution network.

This document provides detailed information on the properties, applications, storage, handling, first aid measures, spills, fires, packaging and transportation of NOROX? MCP-75. If you have any specific questions or need more detailed information, please feel free to ask.