Product Description Product Name: NOROX? MEKP-925 FRED Chemical Composition: Methyl Ethyl Ketone Peroxide CAS No.: 1338-23-4 Physical Form: Liquid Mixture Description: NOROX? MEKP-925 FRED is a methyl ethyl ketone peroxide with a high MEKP dimer that performs well in most vinyl copolymers, especially in ortho- and isophthalic resins. in most vinyl copolymer resins, especially when ortho- and isophthalic resins are used. It can be used as an active agent in most resin types. Technical Data Reactive Oxygen Content: Not to exceed 9.0% Physical Form: Liquid Color: Red Specific Gravity @ 25

Product Description: Product Name: Norox? MEKP-925 RED Chemical Composition: Methyl Ketone Ethyl Ketone Peroxide Physical Form: Liquid Mixture Main Characteristics: High MEKP dimer content, excellent performance in most vinyl resins, suitable for general-purpose orthogonal and heterophilic acid resins. TECHNICAL DATA: Reactive Oxygen Content: not more than 9.0% Form: Liquid Color: Red Specific Gravity (25°C): 1.10 Flash Point (C.O.C.): not less than 200°F Flash Point (SETA C.C.): not less than 170°F Solubility: Soluble in oxidizing organic solvents, slightly soluble in water SADT

Product Information: Product Name: NOROX? MEKP-925 Chemical Composition: Methyl ethyl ketone peroxide Reactive Oxygen Content: Maximum 9.0% Form: Liquid Color: Colorless and transparent Flash Point: Above 200 ° F (93 ° C) Solubility: Soluble in oxygenated organic solvents, slightly soluble in water SADT (Spontaneous Decomposition Temperature): Less than 140 ° F (60 ° C) Storage Temperature: Not more than 80 ° F (27 ° C) Storage temperature: no more than 80°F (27°C) Maximum shipping temperature: no more than 80°F (27°C) Areas of Application: NOROX? MEKP-925 is used as a curing agent for unsaturated polyester resins and vinyl copolymer resins. It is used as a curing agent for most unsaturated polyester resins and vinyl copolymer resins.

Product Information: Product Name: NOROX ? MEKP-925H RED Chemical Name: Methyl Ethyl Ketone Peroxide CAS No.: 1338-23-4 Physical State: Liquid Mixture Color: Water White with Red Dye Technical Data: Reactive Oxygen Content: Maximum 9.0% Form: Liquid Density (25°C): 1.10 Flash Point (C.O.C.): Minimum 200°F. Flash Point (C.O.C.): 200°F minimum Flash Point (SETA C.C.): 170°F minimum Solubility: Soluble in oxygenated organic solvents, slightly soluble in water Self-Ascalation Temperature (SADT): <140°F (60°C)

Description: This document describes the chemical Norox? MEKP-9H, a methyl ethyl ketone peroxide, used as a general purpose curing agent for polyester resins cured at room temperature. It is also suitable for use in heated continuous mixing systems such as polymer concrete and artificial marble products. TECHNICAL DATA: Reactive Oxygen Content: Not to exceed 9.01 TP6T FORMULATION: Liquid SPECIFIC GRAVITY (25°C): 1.11 FLASH POINT (C.O.C.): Minimum 200°F/93°C FLASH POINT (SETA C.C.): Minimum 170°F SPONTANEOUS DISCOMPOSITION TEMPERATURE (SADT): 140°F (60°C) SOLUBILIZABLE IN: OXYGENATED ORGANIC SOLVENTS MISSOURFICIENTLY SOLUBILIZABLE IN: WATER

NOROX?MEKP-9H RED Chemical name: Methyl ethyl ketone peroxide CAS No.: 1338-23-4

Product Information: Product Name: NOROX? MEKP-9H FRED (Methyl Ethyl Ketone Peroxide) CAS No.: 37187-22-7 Form: Liquid Mixture Appearance: Red Reactive Oxygen Content: Not to Exceed 9.0% Flash Point: Minimum 200°F/93°C (C.O.C. Method), Minimum 170°F (SETA C.C. Method) SADT (Critical Temperature): 140°F (60°C) Solubility: Soluble in organic oxidizing solvents, slightly soluble in water Storage Temperature: Below 80°F Application: NOROX? MEKP-9H FRED is suitable for curing at room temperature.

Product Information: Product Name: DCLBP-50-PSI (di(2,4-dichlorobenzoyl) peroxide) CAS No.: 133-14-2 Content: 50% Paste (in Silicone Oil) Molecular Mass: 380.0 g/mol Appearance: White Paste Main Ingredients: Approx. 50% Di-(2,4-dichlorobenzoyl) peroxide, desensitized by Silicone Oil Application: Used as initiator for crosslinking of polymers, especially silicone rubber (VMQ) Technical Data: Appearance: White paste Peroxide content: approx. 50% w/w Reactive oxygen species: approx. 2.10% w/w Desensitizer: Silicone oil Density (20°C): approx. 1.2

Product Information: Product Name: NOROX? 425 (tert-Butyl peroxy-3,5,5-trimethylhexanoate) CAS No.: 13122-18-4 Content: technically pure liquid, peroxide content of about 99% Molecular mass: 230.3 g/mol Appearance: colorless liquid Main components: technically pure tert-Butyl peroxy-3,5,5-trimethylhexanoate Application: Used as an initiator for the polymerization of monomers (such as ethylene, styrene) Technical data: Appearance: colorless liquid Peroxide content: approx. 99% w/w Reactive oxygen: approx. 6.88% w/w Desensitizer: no Density (20°C): approx. 0.89 g/cm3 Viscosity (20°C): approx.