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| Perkacit TMTD |
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| Tetramethylthiuram disulfide |
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| 137-26-8 |
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Perkacit TMTD is used as a primary or secondary (ultra) accelerator in multiple blend accelerator systems with thiazoles and sulfenamides. It is also used as a vulcanizing agent (sulfur donor) in most of the sulfur cured elastomers.
- Perkacit TMTD offers fast vulcanization and gives an excellent vulcanization plateau with good heat aging and compression set resistance when used in sulfurless vulcanization systems and EV systems.
- In EPDM Perkacit TMTD is a valuable secondary accelerator.
- In mercaptan modified polychloroprene cured with ETU, Perkacit TMTD acts as a scorch retarder
without affecting the cure speed.
- Perkacit TMTD-pdr is recommended over pdr-s for use in soft compounds due to dispersability.
- Perkacit TMTD is non-staining and non-discoloring. Excellent colors are obtained in non-black
vulcanizates.
- It should be noted that in the application of Perkacit TMTD N-nitrosodimethylamine can be formed by the reaction of dimethylamine, a decomposition product, with nitrosating agents (nitrogen oxides).
- Perkacit TMTD is regulated for use in articles in contact with food as specified under FDA 21 CFR 177.2600, 175.105 and under BgVV XXI, Categories 1-4 and "Sonderkategorie". |
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Molecular weight: 240
Appearance : white to off white powder
Assay (%) min. : 97.0
Melting point, initial ('C) min. : 142
Melting point, final ('C) : 150-157
Heat loss (%) max. : 0.3
Ash (%) max. : 0.3
Additive (%) : 1.0-2.0
Residue on 300 micron sieve (%) max. : -
Residue on 150 micron sieve (%) max. : 0.1*(* : based on pdr formulation)
Density at 20'C (kg/m3) : 1425
Bulk density (kg/m3) : 460-500
Compacted bulk density (kg/m3) : 510-550 |
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Flexsys Co
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| Phone |
905-826-9222 |
| Fax |
905 826-3119 |
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| E-mail |
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| Address |
2330 Argentia Rd., Missisauga, Ontario, L5M 2G4 |
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