- Appearance: Colorless liquid
- Peroxide content: approx. 99% w/w
- Active oxygen content: approx. 6.43% w/w
- No inhibitors
- Density (20°C): approx. 0.93 g/cm³
- Viscosity (20°C): approx. 6 mPa·s
- Refractive index (20°C): approx. 1.428
- Critical temperature (SADT): approx. 70°C
- Refrigerated stability: below -30°C
- Reaction onset temperature: approximately 90°C
- Recommended storage temperature: not exceeding 30°C
- Shelf life from date of delivery: 3 months
- Curing agent for unsaturated polyester resins; temperature range: 130–160°C.
- Usage: 1–2% of the resin supply.
- "Shelf life" (gel time of resin + peroxide) can reach several weeks or months at room temperature.
- Sensitive to certain fillers and heavy metal salts.
- Adding 0.1–0.3% of Inhibitor BC-500 can significantly extend the “shelf life.”
- Curing rates are low in the 85–95°C range (the “cracking” temperature) unless exothermic reactions occur (e.g., in heated molds).
- Curing within a few minutes is only possible within the optimal temperature range of 130–160°C for hot-press molding.
- It is primarily used for hot-press molding of SMC or BMC, but can also be used for coil impregnation (e.g., transformers).
- The standard packaging for NOROX® 400 is 25 kilograms.
- The information provided and all further technical recommendations reflect our current knowledge and experience based on internal testing of local raw materials and are intended to provide information about our products and their applications.
- This information should not be construed as a guarantee of the specific performance of the described products or their suitability for specific applications, nor should it be regarded as instructions for use.
- This information does not constitute a guarantee of product performance or shelf life, nor does it imply any legal liability for the use of the information provided, including with respect to existing third-party intellectual property rights (in particular, patent rights).
- We reserve the right to make any changes based on technical progress or further developments.
- Applications of our products based on our technical recommendations are beyond our control and are the sole responsibility of the user.
- Users are not relieved of their obligation to conduct careful inspection and testing to verify the suitability of the goods received for their intended application.