IndiaRubberDirectory.com > Rubber Engineering > Starting Point Formulation
Starting Point Formulation - RETREADING RELATED MATERIAL
RETREADING RELATED MATERIAL
Material
Cushion Gum
(Conveational)
Cushion Gum
For Precured
Treads
Vulcanising
Solution
NR (RSS-I)
100.0
100.0
100.0
Pilmast 7
0.1
0.1
0.3
Zinc oxide
5.0
5.0
10.0
Stearic Acid
1.0
1.0
0.5
Pilnox TDQ
1.0
1.0
1.0
SRF Black
35.0
35.0
15.0
Highly Aromatic
5.0
7.5
--
Wood Rosin
2.0
2.0
4.0
Pilcure MOR
0.7
0.7
--
Pilcure MBT
--
0.2
1.0
Pilgard PVI-50
0.2
0.2
1.0
Insoluble sulphur
(100% active basis)
2.5
2.5
4.0
Cure 150°C-15min 150°C-12min 150°C-12min
Note: Vulcanising solution is prepared by dissolving the compound in
solvent naphtha to a solid content of 12.5%. The solution back can be further
increased by dissolving 3 to 5 phr unmasticated NR is solvent naphtha prior to
addition of vulcanizing solution compound.
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