Dimethylthiotoluenediamine
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Dimethylthiotoluenediamine

Overview: Dimethyl thiotoluene diamine (DMTDA) is mainly used as an ammonia curing agent in two-component polyurethane elastomers and polyurethane materials used in the construction and civil engineering industries. Currently, the global annual consumption is approximately 1000 tons. It is projected that demand will increase significantly as the US EPA lifts its designation of 2,4-Diamino-3,5-dimethylthiotoluene as a specified substance. DADMT is an amine curing agent primarily used in RIM polyurethane systems and sprayed polyurethane (urea) elastomer coating systems. Sprayed polyurea elastomer technology features solvent-free application, non-sagging thick coatings, fast drying speed, high construction efficiency, insensitivity to temperature and humidity, and excellent physicochemical properties, and has been widely used in waterproofing, wear resistance, and corrosion protection. Sprayed polyurea elastomer composites consist of two components, A and B, and are typically applied using high-temperature, high-pressure impact spraying equipment.
Color and Appearance: Pale yellow transparent liquid
Specifications: 99%
CAS NO.: 106264-79-3
Molecular Formula: C9H14N2S2
Molecular Weight: 214.34

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Product Introduction

Item	Index
Appearance	pale yellow transparent liquid
Color	≤8
Dimethylthiotoluenediamine	≥96
Monomethylthiotoluenediamine	≤4
Trimethylthiotoluenediamine	≤1
Moisture	≤0.1%
Amine Value	525-535

Applications

1. Dimethyl thio-toluene diamine is a novel liquid curing agent for polyurethane elastomers, widely used in polyurethane casting, coatings, RIM, SPUA, polyurethane tires, and adhesives for chain extension or cross-linking. It is also a curing agent for epoxy resins.

2. As a hardener, when added to two-component polyurethane elastomers such as TDI and MTDI, it must be added at a rate of 10%. In the construction and civil engineering industries, it is often used as an additive in fire-retardant coatings (tops and sidewalls) and corrosion protection of metal materials (coatings on the inner walls of iron pipes). Polyurethane products obtained by reacting with other substances without any treatment are superior to those obtained with MOCA (Mocha) hardener.

3. Used in polyurethane printing squeegees, oil pipe cleaning squeegees, etc., to improve the oil resistance of polyurethane and reduce its volumetric expansion rate.

4. It has wide applications in construction, coal mining, metal mining, medicine, stamping, and other fields. Furthermore, it has wide applications in textiles, papermaking, and printing industries. It can be said that it has a broad market from the aerospace industry to ordinary civilian industries.

application

Packaging, Storage, Handling, and Transportation

Dimethylthiotoluene diamine is packaged in steel drums.

Packaging Specifications:

25 kg/steel drum, 420 drums/20ft container
200 kg/steel drum, 80 drums/20ft container

1. This product has a shelf life of 1 year.

2. This product must be stored under anhydrous nitrogen in a sealed environment. If a package cannot be used up at once, it must be sealed again under anhydrous nitrogen after use.

3. This product is hygroscopic and will form white clumps upon contact with water, affecting its use.

4. This product should not be exposed to outdoor conditions or high temperatures for extended periods.

5. This product is best stored above 0℃ to ensure long-term quality stability.

6.During storage and exposure to air, the product color will gradually darken, which is normal.

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