Product Description: NOROX ? 411 is a colorless liquid composed mainly of technically pure tert-amyl peroxy-2-ethylhexanoate. It is a branched aliphatic peroxy ester used as a free radical initiator for hardening of unsaturated polyester resins at 70 - 150°C and may be used in conjunction with cobalt accelerators. Technical Data: Appearance: colorless liquid Content: approx. 981 TP3T Active Oxygen (AO): approx. 6.811 TP3T Density: approx. 0.9 g/cm3 Viscosity at 20°C: approx. 4.3 mPa-s Refractive index at 20°C: approx. 1.433 Flash point

Product Description: TAPEH is a colorless liquid composed mainly of technically pure tert-amyl peroxy-2-ethylhexanoate. It is a branched aliphatic peroxy ester used as a free radical initiator in the polymerization of monomers such as ethylene, styrene and (meth)acrylates. Technical Data: Appearance: colorless liquid Content: approx. 981 TP6T Active Oxygen (AO): approx. 6.811 TP6T Density: approx. 0.9 g/cm3 Viscosity at 20°C: approx. 4.3 mPa-s Refractive index at 20°C: approx. 1.433 Flash Point: approx. 59°C Vapor at 25°C

Product Description: TAPEH-75-AL1 is a 75% solution of tert.Amylperoxy-2-ethyl hexanoate stabilized with odorless mineral oil. It is a colorless, mobile liquid used as an initiator (free radical source) for monomer polymers. Technical Data: Appearance: Colorless, flowable liquid Content: approx. 75% Reactive Oxygen Content: approx. 5.2% Desensitizer: Aliphatic Hydrocarbons (Boiling Point > 170°C) Density: approx. 0.857 g/cm3 Viscosity at 20°C: approx. 4.3 mPa-s Refractive Index at 20°C: approx. 1.4

Product Description: NOROX? 500-50 is a 50% solution of 1,1-tert-butyl peroxide stabilized with aliphatic hydrocarbons. It is a colorless, flowable liquid used as an initiator for polymer monomers (e.g. styrene) and as a curing agent for unsaturated polyester resins. Technical Data: Appearance: colorless liquid Peroxide content: approx. 50% Reactive oxygen content: approx. 7.94% Desensitizer: aliphatic hydrocarbon (boiling point > 170°C) Density: approx. 0.83 g/cm3 Viscosity at 20°C: approx. 3 mPa-s Refractive index at 20°C: approx. 1.429 Critical temperature (SADT):

Product Information: Product Name: NOROX? 500-75OMS Chemical Composition: 75% solution of 1,1-tert-butyl peroxy-3,3,5-trimethylcyclohexane Form: Colorless flowing liquid containing 75% tert-butyl peroxide, desensitized with aliphatic hydrocarbon solvents Technical Data: Ingredients: Approx. 75% tert-butyl peroxide Active Oxygen: approx. 7.94% Density (20°C): approx. 0.88 g/cm3 Viscosity (20°C): approx. 8 mPa-s Refractive index (20°C): approx. 1.435 Critical temperature: approx. 60°C Refrigeration stability: below -25°C Recommended storage temperature: low

Product Description: BENOX? C-50 is a white, free-flowing granular powder containing benzoyl peroxide, 50%, and phthalate plasticizers. It is used as a hardener for unsaturated polyester and acrylic resins in both high temperature curing and ambient temperature curing (with amine accelerators) processes. Technical Data: Benzoyl peroxide content is 50%, reactive oxygen content is 3.30%. Appears as a white, free flowing powder with a "start-up" temperature of 70°C. The half-life temperature (in 0.1 moles of benzene) is 72°C. Recommended storage temperature is not more than 30°C. Soluble in phthalates and insoluble in water. Recommended storage temperature not exceeding 30°C, soluble in phthalates, insoluble in water. From delivery

DESCRIPTION: BENOX? B-50 and B-55 are fine dispersions of dibenzoyl peroxide in the form of smooth, non-separating, refractory cream pastes. Their patented (U.S. Patent No. 5,334,326) benzoate plasticizer diluent system provides product formulations that dissolve easily in resins and monomers. These products are less hazardous and easier to use than the dry granular form of dibenzoyl peroxide, provided the plasticizer and moisture content are not objectionable. Other benefits of benzoate plasticizer systems include better dispersion for heat degradation resistance and elimination of phthalate plasticizers. Product Variant: BENOX? B-50-106: Milk

Structure and Properties: Technical Data: Half-Life Data: Applications: Storage: Packaging: The standard packaging specification for BENOX? A-75 is 3 x 5 kg (dry weight, 25 lbs.) polyethylene bags in cardboard cartons, weight net. Disclaimer:

Product Information: Product Name: NOROX? 500-90-AL3 Chemical Composition: 1,1-Bis(tert.butyl peroxy)3,3,5-trimethyl cyclohexane CAS No.: 6731-36-8 Molecular Mass: 302.4 g/mol 90% Concentration of aliphatic ( aliphatics solution Product Description: Appearance: colorless liquid Peroxide content: approx. 90% w/w Reactive oxygen content: approx. 9.5% w/w Desensitizer: aliphatic with high boiling point Density (20°C): approx. 0.89