Flame Retardant EPDM Rubber Rings

We manufacture and Supply UL 94 EPDM Rubber Orings and Rubber Parts.

From Lowest (Least Flame - Retardant) to Highest (Most Flame - Retardant).

Standards are given below for details about its details of testing,

1. UL 94-5VA 
2. UL 94-5VB 
3. UL 94 V-0 
4. UL 94 V-1 
5. UL 94 V-2 
6. UL 94 H-B 
   
   

HB: slow burning on a horizontal specimen; burning rate < 76 mm/min for thickness < 3 mm or burning stops before 100 mm

V-2: burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.

V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.

V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.

5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.

5VA: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may not develop a hole.