DMTDA (E300) Curing Agent for Polyurethane Elastomer

Product Name

Dimethylthiotoulenediamine(DMTDA)

Applications

DMTDA curative, a liquid aromatic diamine with low chronic toxicity, is an effective curative for polyurethane cast elastomers. It is used in both hot and room-temperature casting. Other uses include as a slower chain extender for polyurethane urea and polyurea elastomers in reaction injection molding, structural reaction injection molding and hand-applied and spray coating applications, alone or in blends with DETDA curative.

Trade Name

Ethancure 300 (Albemarle)

Synonyms

Diethylmethylbenzenediamine (French) (DSL, EINECS)
diethylmethylbenzenediamine (EINECS)
Diethylmethylbenzoldiamin (German) (EINECS)
dietilmetilbencenodiamina (Spanish) (EINECS) ar,ar-Diethyl-ar-methylbenzenediamine (ECL) TOLUENE, DIAMINE-, DIETHYL- (PICCS)Diethyltoluenediamine

Structural Formula

Formula

C₉H₁₄N₂ S₂

Molecular Weight

214.35

CAS No.

106264-79-3

Specifications

Assay

≥97%(GC,area,Calculalted)

3,5-Diethyltoluene-2,4-diamine:

75.5～81.0%(GC, area)

3,5-Diethyltoluene-2,6-diamine:

18.0～20.0%(GC, area)

Dialkylated m-phenylenediamines:0.5～3.0%(GC,area,Calculated)

Water

≤0.08% (w/w) (KF)

Typical Properties

Appearance

Light yellowish liquid.

Darkens with time and exposure to air.

Pour point

-9℃

Boling point

308℃

Density

1.022g/ml(20℃)

Flash point

>135℃(TCC)

Viscosity

280centistokes(20℃);

155 centistokes(25℃)

Equivalent weight 

with isocyanates

89.1

Equivalent weight 

with epoxy resins

44.6

Handling

Packaging

Bulk quantities in rail/road tank 

containers or steel drums

Net weight 200KG/drum

Toxicity

Oral (Rat) LD50: 1515 mg/kg

Transportation

UN:3082; Packing Group:III; 

Class:9

MSDS

MSDS is available upon request. Please contact:

info@exceedchemical.com