Butanox® M-50 is the work horse in GRP curing systems. Medium-reactive, general purpose methyl ethyl ketone peroxide (MEKP) with guaranteed low water content, used for curing unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures.
| Appearance | Clear colorless liquid |
| Total active oxygen | 8.8-9.0 % |
| Density, 20 °C | 1.180 g/cm³ |
| Viscosity, 20 °C | 24 mPa.s |
Butanox® M-50 is a general purpose methyl ethyl ketone peroxide (MEKP) for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. The curing system Butanox® M-50/cobalt accelerator is particularly suitable for the curing of gelcoat resins, laminating resins, lacquers and castings; moreover the manufacture of light resistant parts may be possible contrary to the curing system benzoyl peroxide/amine accelerator. Practical experience throughout many years has proven that by the guaranteed low water content and the absence of polar compounds in Butanox® M-50, this peroxide is very suitable in GRP products for e.g. marine applications.
Brand:Trigonox®
Chemical family:Organic peroxide
CAS number:6731-36-8
Physical form:Liquid
Molecular Weight:302.5
Chemical name:1,1-Di(tert-butylperoxy)-3,3,5-trimethylcyclohexane, 90% solution in isododecane
Brand:Perkadox®
Chemical family:Organic peroxide
CAS number:80-43-3
Physical form:Crystal
Molecular Weight:270.4
Concentration:5.86% min.
Chemical name:Dicumyl peroxide
Brand:Butanox®
Chemical family:Organic peroxide
CAS number:1338-23-4
Physical form:Liquid
Chemical name:Methyl ethyl ketone peroxide in diisononyl phthalate
Brand:Polylite
Appearance: Clear liquid,no visible mechanical impurity
Epoxy Equivalent (g/eq): 176–184
Color (Gardner): Max 1.0
Flash Point (℃): Above 150
Viscosity (cps, at 25℃): 8000–11000
Hydrolyzable Chlorine Content (ppm): Below 1000
Specific Gravity (g/cm³, 25℃): 1.16
Brand:Polylite
Appearance:Clear liquid,no visible mechanical impurity
Colour(Hazen):40 Max
Epoxy Equivalent(g/mol):210-230
Hydrolytic Chlorine (%):0.50 Max
Inorg.Cl （mg/kg）:50 Max
Volatile /150℃,40min(%):0.6 Max
Softening Point(℃):14-23
Brand:Polylite
Appearance: Brown-yellow transparent liquid
Density: 1.05-1.07kg/L
Viscosity: 1 350±100cps
Solid content: 55±1%
Gelation time: 2 15±5min
Shelf life: 6 months (below 25℃)
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