PEROXAN ME-50 L
Thermoset Curing
Ketone peroxides
Description: Methyl ethyl ketone peroxide
Solution in plasticizer
PEROXAN ME-50 L is a general purpose MEKP used for the curing of unsaturated polyester
at ambient temperature in combination with cobalt accelerators.
CAS No. (active substance): 1338-23-4
Technical data: Appearance: clear liquid
Active oxygen assay: ca. 9,05%
Density at 20°C: 1,10 g/cm³
Solubility: Insoluble in water, soluble in phthalates
Storage: Maximum storage temperature (Ts max): 30°C
Minimum storage temperature (Ts min): 0°C
Storage stability as from date of delivery: 6 months
Keep packaging tightly closed in a well ventilated place at indicated storage temperature. Keep away
from reducing agents e.g. amines, acids, alkalis, heavy metal compounds (e.g. accelerators, driers,
metal soaps). Never weigh out in storage room.
Hazardous reactions: Oxidizing agent. Decomposes violently under the influence of heat or by contact with reducing agent.
Never mix with accelerators.
Safety characteristics: Flash point: above SADT*
SADT*: 60°C
Packaging: 25 kg Container
Major decomposition Carbon dioxide, Water, Aetic acid, Formic acid, Propionic acid, Methyl ethyl ketone
products:
* SADT = Self Accelerating Decomposition Temperature
UP/101307/03.09/2013
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— CH3 —
R—O—O—C—O—O—R
— C2H5 — n
n= 1 - 4
R O—O R
C C
R‘ O—O R‘
PEROXAN ME-50 L
Thermoset Curing
Ketone peroxides
Application: PEROXAN ME-50 L is used for the curing of unsaturated polyester resins at ambient temperature
in combination with cobalt accelerators.
The curing system PEROXAN ME-50 L and Cobalt accelerator is particularly suitable for the curing of
gel coat resins, laminating resins, lacquers and castings; moreover the manufacture of light resistant
parts may be possible contrary to the curing system Benzoyl peroxide and Amine accelerator.
Depending on working conditions, the following peroxide and accelerator dosage levels are
recommended:
PEROXAN ME-50 L: 1,0 to 4,0 phr
PERGAQUICK C12 X (Cobalt, 1%): 0,5 to 3,0 phr
Safety and handling: Please refer to the material safety data sheet (MSDS) for information concerning safe storage, use
and handling of PEROXAN ME-50 L. This information should be thoroughly reviewed prior to
acceptance of this product. The MSDS is available for downloading at www.pergan.com or through
contacting Pergan directly.
The information presented herein is true and accurate and to the best of our knowledge, but without any guarantee. Since the conditions of use are
beyond our control we disclaim any liability, including for patent infringement, incurred in connection with the use of these products, data or suggestions.
Buyer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.
PERGAN GmbH Schlavenhorst 71 Telephone: +49 2871 9902-0
D-46395 Bocholt Telefax: +49 2871 990250 UP/101307/03.09/2013
Germany www.pergan.com Page 2 of 2