Full name: Mardec Rubber 1420
- Other name: PA 80, Propoly 80, Processing Aid 80
- Superior processing natural rubber produced as master-batch
- It contains 80 parts of cross-linked natural rubber and 20 parts of unmodified natural rubber, and is presented as block rubber in 33.33kg bale (one metric ton per pallet).
- Ash Content ( max ) 0.75 %
- PRI Index (min) @ 70
- Dirt (max) 0.05 %
- Mooney Viscosity (max) 80.0
