MELAPUR MC
MELAPUR MC
Melapur MC flame retardant is a salt of melamine and cyanuric acid. It has a higher thermal stability than pure melamine, remaining stable up to about 320ºC. For this reason, Melapur MC flame retardant is often applied in polymers with higher processing temperatures. Above 320ºC, it undergoes endothermic decomposition to melamine and cyanuric acid, acting as a heat sink in the process. The vaporized melamine acts as an inert gas source diluting the oxygen and the fuel gases present at the point of combustion. Examples of suitable polymers: all nitrogen based polymers such as polyamide 66, 6, 11, 12, thermoplastic polyurethane and polyurethane.
Applications for MELAPUR MC
Melapur MC is used as an effective flame retardant, primarily for electrical & electronic applications (connectors, switches, housings, etc) made from polyamide or TPU. In unfilled or mineral filled compounds it gives a UL94 V-0 rating; in glass filled system only a UL94 V-2 rating is possible.
Product Forms Available
| Melapur MC25 | Melapur MC50 |
Features & Benefits
Addition levels of Melapur MC are relatively low, giving good economics, mechanical properties and lower specific gravity compared to compounds containing halogen/antimony flame retardant systems. Being halogen free also results in significant advantages in terms of fire safety, i.e. lower smoke density, lower smoke toxicity and less corrosion. Lower corrosivity offers advantages both in the processing stage and in case of a fire. In the processing stage lifetime of barrels and moulds will be extended, resulting in decreased equipment costs.
Properties
| Physical Properties | Value |
| pH Value (saturated sol., 20°C) | 5-6 |
| Specific Gravity | 1.7 g/cm3 |
| Bulk Density | 150-200 kg/m3 |
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Melapur MC25 | Melapur MC50
