Product Description:

• Norox? 757 is a diluted version of Norox? 750 for applications where more volume needs to be measured more accurately.
• Liquid organic peroxide hardening initiator for RTM (Resin Transfer Molding) and moldmaking resins.
• The main feature is uniform hardening in thick and thin sections without excessive heat release, resulting in excellent dimensional stability.

Technical data:

• Active Oxygen: 3.7 max
• Form: Liquid
• Color: Colorless
• Specific gravity at 25°C: 1.15
• Flash Point (C.O.C.): 200°F/93°C, min.
• Flash Point (SETA C.C.): 150°F/66°C, min.
• Soluble in: Oxygenated organic solvents
• Also soluble in: water (medium solubility)

Applications:

• Norox? 757 is an excellent liquid hardening initiator for room temperature curing unsaturated polyester resins for moldmaking and RTM applications.
• Has improved green strength development without excessive heat release.
• The slightly extended gel time (compared to the standard MEKP formula) provides good operating time.
• During the RTM process, Norox? 757 provides a delayed gel time to ensure cavity filling and wetting of the reinforcement.
• Excellent final hardening and dimensional stability are observed in work mold and RTM applications.

Storage and handling:

• Recommended storage at 27°C (80°F) or lower, maximum shelf life requires storage below 25°C (70°F).
• Keep away from flammable materials and all sources of heat, sparks or open flames.
• Leaking containers should be disposed of immediately; leaking peroxide may become contaminated and initiate a dangerous reaction.

Packaging, transportation and delivery:

• Standard package sizes are 4x8 lb. polyethylene bottles; 44 lb. or 20 kg. Hedpacks.
• Refer to Sections 14 and 15 of the Norox? 757 Material Safety Data Sheet for classification information.
• Available through a nationwide network of distributors.

This datasheet provides product information, technical data, application and storage handling recommendations for Norox? 757 for resin hardening and industrial molding applications. If you need more information or have any questions, please let me know and I will do my best to help.