Technical Data Sheet
NOROX
MEKP-925H
Methyl ethyl ketone peroxide
CAS#1338-23-4
Liquid mixture
Description
Norox MEKP-925H is specifically formulated to reduce gas generation in
critical corrosion applications for vinyl ester resins in gel coats, barrier
coatings, and corrosion resistant structures. The low hydrogen peroxide level
in Norox MEKP-925H often requires that the resin promotion system be
modified for some resins to obtain reasonable gel times.
Technical Data
Active Oxygen: 9.0% max.
Form: Liquid
Color: Water White
Specific Gravity @ 25 C: 1.10
Flash point (C.O.C.): 200 F, min.
Flash point (SETA C.C.): 170 F, min.
Soluble in: Oxygenated organic solvents
Slightly soluble in: Water
SADT <140 F (60 C)
Storage temp: <80 F(27 C)
Max Transport Temp: <80 F(27 C)
Application
Norox MEKP-925H is a methyl ethyl ketone peroxide composition
formulated to be an excellent cure initiator for both unsaturated
polyester resins and vinyl ester resins. With most unsaturated
polyesters it gives longer gel and gel to cure times but with a higher
peak exotherm than Norox MEKP-9, particularly in thick sections.
With most vinyl esters Norox MEKP-925H gives the most complete
cure of any currently available MEK peroxide.
Technical Data Sheet
PACKAGING, SHIPPING & AVAILABILITY
The standard package sizes of Norox MEKP-925H are cases of 4x8
lb. polyethylene bottles; and 40 lb. or 20 kg Hedpacks. For custom
package sizes, please contact your local distributor or United
Initiators, Inc.
Classification Please refer to the specific Norox MEKP-925H
Safety Data Sheet under section 14, Shipping Description.
Norox MEKP-925H is available through a nation-wide distributor
network. Call United Initiators, Inc. for the name of the distributor in
your area.
This information and our application-technical advice whether verbal, in writing or by way of trials reflect our present state of knowledge based on internal tests with local raw
materials. Their purpose is to inform interested parties about our products and their possible application. They should not be construed as guaranteeing specific product properties or
their suitability for a particular application. Furthermore, the information does not contain complete instructions for use. Nor does it constitute a guarantee as to quality and durability.
Changes due to technical progress and corporate advancement reserved. Any existing third-party copyrights are to be taken into account.
Application and use of our products based on our application-specific advice is beyond our control and sole responsibility of the user. The user is not released from the obligation of
verifying the suitability and applicability as to the intended purpose.
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Revision number: 1.0. Date: 03.03.14. Device M: TDS.