Perkadox® BTW-50 is a 50% phthalate free dibenzoyl peroxide paste for curing unsaturated polyester resins at ambient and elevated temperatures.
| Appearance | White homogeneous paste |
| Assay | 48.5-51.0 % |
| Density, 20 °C | 1.200 g/cm³ |
| Viscosity, 20 °C | thixotropic paste mPa.s |
Perkadox® BTW-50 is a paste containing 50% dibenzoyl peroxide without phthalate for the curing of unsaturated polyester resins at ambient and elevated temperatures. At temperatures up to 80°C, Perkadox® BTW-50 should be used in combination with an aromatic tertiary amine accelerator, above 80°C the use of an accelerator is not required. Perkadox® BTW-50 has primarily been developed for the putty market. For non filled systems, Perkadox® 40E is better applicable with respect to miscibility with the UP resin. Perkadox® BTW-50 shows a very good chemical and physical stability and is therefore very suitable for tube filling. The curing system Perkadox® BTW-50/amine accelerator shows a very fast cure that is hardly influenced by humidity and fillers. Even at low temperatures a relatively good cure will be obtained. A disadvantage may be the yellow color and poor light resistance of the moulded product.
Brand：Trigonox®
Chemical family：Organic peroxide
CAS number：80-15-9
Physical form：Liquid
Molecular Weight：152.2
Chemical name：Cumyl hydroperoxide
Brand：Trigonox®
Chemical family：Organic peroxide
CAS number：80-15-9
Physical form：Liquid
Molecular Weight：152.2
Chemical name：Cumyl hydroperoxide
Brand:Polylite
Appearance:Light yellow transparent viscous liquid
Acid Value:19-25mgKOH/g
Viscosity，25℃:0.30-0.60Pa.s
Solid Content:59-66%
Thermal Stability,80℃:≥24h
Gel time:12-30min
Brand:Polylite
Appearance:Light yellow transparent viscous liquid
Acid Value:14-20mgKOH/g
Viscosity，25℃:0.14-0.16Pa.s
Solid Content:52-58%
Gel time:25-38min
Brand:Polylite
Appearance:Light yellow transparent viscous liquid
Acid Value:14-22 mg KOH/g
Viscosity, 25℃:1.6-2.3 Pa.s
Solid Content:70-76 %
Gel Time, 25℃:8.5-10.5 min
Thermal Stability, 80℃:≥24h
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
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