Polymers are macromolecules which are fundamentally made from Carbon and Hydrogen atoms, making them highly flammable. These materials have become ubiquitous and are now being utilised in more applications than ever before. Applications extend to areas where there might be chances of exposure to fire. It is in this scenario that we need to protect the plastics from burning. Flame retardant properties can be achieved with the help of different types of additives.
| Testing Standard | Rating | Methodology |
|---|---|---|
| UL94 | 5VA | This is the most stringent flammability rating. Burning should stop within 60 s of multiple flame applications, specimen burning through is not permitted |
| UL94 | 5VB | Burning should stop within 60 s of multiple flame applications; specimen burning though is permitted |
| UL94 | V-0 | Vertical burning should stop within 10 s after flame applications; no dripping flame particles permitted |
| UL94 | V-1 | Vertical burning should stop within 60 s after flame applications; no dripping flame particles permitted |
| UL94 | V-2 | Vertical burning should stop within 60 s after flame applications; dripping flame particles permitted |
| UL94 | H-B | Horizontal burning on 3-mm sample at, 76 mm/min for 127 mm length |
| Glow wire flammability index (IEC 60695-2-12) | Temperature | Sample specimen is held against a heated wire to determine the temperature at which the material shows no flame or glowing 30 s after the wire has been removed |
| Glow wire ignition temperature (IEC 60695- 2-13) | Temperature | Sample specimen is held against a heated wire to determine the temperature at which the sample does not ignite within 30 s of exposure |
| FMVSS 302 | Pass/fail | Sample specimen (held horizontally) is exposed to gas flame in a closed test chamber; The rate of burning and the distance burnt are measured |
| DIN 4102-1 | B2 | Sample specimen (held vertically) is exposed to gas flame inside test chamber; flame propagation and dripping flame particles are recorded |
A lot of factors such as mechanical properties, reaction between ingredients, water removal, processing/compounding temperatures, melt strength etc. need to be carefully considered before formulating a Flame Retardant compound. You can leave all the formulation worries to us and focus on your application. We are suppliers/manufacturers/exporters of high quality halogenated and non-halogenated Flame Retardant compounds and masterbatches in India and abroad. Contact us to collaborate with you on your project today.
