HalogenFree Flame Retardant in NR: Breaking the 30% LOI Barrier with Tensile Strength Above 13 MPa
![Rubber quality control laboratory equipped with a full suite of instruments for testing vulcanization characteristics, mechanical properties, and flame retardancy, essential for certifying every batch of compounded stock before release into production.]](https://sanezenrubber.com/wp-content/uploads/2026/04/1-8-768x575.png)
For decades, the search for a reliable flame retardant natural rubber formulation has been defined by a single stubborn trade-off: as the oxygen index climbs, tensile strength crashes. As one of the dedicated Halogen free environmentally friendly flame retardant Manufacturers China, we have…


