DIAMOND SULF special grades are products designed to specific requirements of the industry. These grades have been enhanced to perform better and can be customized further to achieve specific results as per the need of the customer.
Product Name
Preparation of Insoluble Sulphur and 20% Naphthenic Oil treated
Intended Use
Vulcanizing agent
DS OT 20(HD) is a special grade of DIAMOND SULF exhibiting higher levels of dispersion. during the mixing process this grade disperses more easily leading to reduction in incorporation time under identical conditions. This grade contains requisite quantity of suitable polymeric binder which facilitates better dispersion resulting in homogeneous vulcanization and physical properties.
Physical and Chemical Properties
| Appearance | - | Yellow Fine Powder | |
| Elemental Sulphur % | - | 80±1.5 | |
| Insoluble Sulphur (Min)% (On Total S) |
- | 90 | Test: ASTM D 4578-89 |
| Oil Hinder % | - | 20±1.5 | Test: ASTM D 4573-95 |
| Acidity(as H2SO4) (Max)% | - | 0.05 | Test: ASTM D 4569-89 |
| Ash Content (Max)% | - | 0.01 | Test: ASTM D 4574-94 |
| Heat Loss (Max) % | - | 0.5 | Test: ASTM D 4571-94 |
| Fineness Retention (on Wet Screen) 100 Mesh (Max)% 200 Mesh (Max)% |
- - |
0.2 2.0 |
Test: ASTM D 4572-89 |
| Thermal Stability Heating at 105°C for 15 min. (In Liquid Paraffin ) (Min) % | - | 75 |
Product Name
Preparation of Insoluble Sulphur and Silica, 25% Naphthenic Oil
Intended Use
Vulcanizing agent
DS OT 25 AS is an oil coated Insoluble Sulfur grade having specific blend of precipitated silica of compatible fineness. The resultant product has good thermal stability and exhibits better dispersibility. Presence of precipitated silica improves flow characteristics of insoluble sulfur as it inhibits caking effect of oil and also helps in bonding of rubber compound to coated steel cord used for radial tyre and belting.
Physical and Chemical Properties
| Appearance | - | Yellow Fine Powder | |
| Elemental Sulphur % | - | 67±1 | |
| Insoluble Sulphur (Min)% (On Total S) |
- | 90 | Test: ASTM D 4578-89 |
| Oil Hinder % | - | 25±1.5 | Test: ASTM D 4573-95 |
| Acidity(as H2SO4) (Max)% | - | 0.05 | Test: ASTM D 4569-89 |
| Ash Content (Max)% | - | 8±1 | Test: ASTM D 4574-94 |
| Heat Loss (Max) % | - | 0.5 | Test: ASTM D 4571-94 |
| Fineness Retention (on Wet Screen) 100 Mesh (Max)% 200 Mesh (Max)% |
- - |
0.2 2.0 |
Test: ASTM D 4572-89 |
| Thermal Stability Heating at 105°C for 15 min. (In Liquid Paraffin ) (Min) % | - | 75 |
Product Name
Insoluble Sulphur
Intended Use
Vulcanizing agent
DS 90 is uncoated Insoluble Sulfur grade, which is available to specific requirements of users.
Physical and Chemical Properties
| Appearance | - | Yellow Fine Powder | |
| Elemental Sulphur % | - | 99.5±0.5 | |
| Insoluble Sulphur (Min)% (On Total S) |
- | 90 | Test: ASTM D 4578-89 |
| Oil Hinder % | - | - | Test: ASTM D 4573-95 |
| Acidity(as H2SO4) (Max)% | - | 0.05 | Test: ASTM D 4569-89 |
| Ash Content (Max)% | - | 0.10 | Test: ASTM D 4574-94 |
| Heat Loss (Max) % | - | 0.5 | Test: ASTM D 4571-94 |
| Fineness Retention (on Wet Screen) 100 Mesh (Max)% 200 Mesh (Max)% |
- - |
0.2 2.0 |
Test: ASTM D 4572-89 |
| Thermal Stability Heating at 105°C for 15 min. (In Liquid Paraffin ) (Min) % | - | - |
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