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Home > Products > TDI MDI Polyurethane > MOCA-HR: High-Temperature Stable Curing Agent for Light-Colored Cast Polyurethane Elastomers

MOCA-HR: High-Temperature Stable Curing Agent for Light-Colored Cast Polyurethane Elastomers

Product Details

Place of Origin: China

Brand Name: EXCEEDCHEM

Certification: ISO9001:2008

Model Number: MOCA-HR

Payment & Shipping Terms

Minimum Order Quantity: 1200KG

Price: To be negotiated

Packaging Details: 50kg/carton drum

Delivery Time: 5-8 work days

Payment Terms: T/T,L/C

Supply Ability: 1000mt/month

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high-temperature curing agent for polyurethane

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light-colored cast polyurethane elastomer

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TDI MDI polyurethane curing agent

MOCA-HR: High-Temperature Stable Curing Agent for Light-Colored Cast Polyurethane Elastomers

                           MOCA-HR: High-Temperature Stable Curing Agent for Light-Colored Cast Polyurethane Elastomers

Chemical Information

  • Chemical Name: 3,3’-Dichloro-4,4’-diaminodiphenylmethane
  • Molecular Formula: C₁₃H₁₂N₂Cl₂
  • Molecular Weight: 267.16
  • CAS Number: 101-14-4

    Specifications Table

    Item

    Specification

    Appearance

    Pale yellow granular pellet (MOCA-HR)

    Melting Point ()

    ≥ 97

    Moisture (%)

    < 0.30

    Solid Density (24 ) (g·cm³)

    1.44

    Liquid Density (107 ) (g·mL¹)

    1.26

    Amine Equivalent

    131 – 136

    Free Amine (%)

    < 1.00

    Color (Gardner)

    < 4

    Insoluble Matter (%)

    < 0.04

    Hygroscopicity

    None

    Storage Condition

    Airtight storage in a dry area, away from direct sunlight

    Solubility

    Easily soluble in DMF, DMSO, MEK and THF; soluble in ethanol, toluene and benzene; insoluble in water.

    Safety

    LD₅₀ (rats) 5000 mg/kg. Wear a mask, gloves and goggles during handling.


    Advantages

    MOCA-HR is a high-performance aromatic diamine curing agent engineered to deliver exceptional thermal stability and superior color retention under demanding processing conditions.

    Even under prolonged or repeated heating cycles, withstanding peak temperatures of up to 150°C, the molten MOCA-HR maintains a consistently light yellow, clear, and transparent appearance. It exhibits no signs of discoloration, turbidity, or thermal degradation, ensuring stable and predictable curing performance.

    This outstanding thermal and chromatic stability makes MOCA-HR particularly suitable for applications requiring high-temperature processingre-melting operations, or stringent aesthetic requirements where consistent product appearance is critical.



    Applications

     

    MOCA-HR is a high-performance aromatic diamine that functions as both a chain extender and curing agent for polyurethane systems. It is specifically formulated for use in cast polyurethane elastomer production, particularly in applications utilizing casting machines for precise and efficient processing.


    One of its standout features is its ability to impart exceptional light color stability to the final polyurethane products—an essential advantage for applications where appearance, transparency, or color consistency is critical.

    In addition to its role in polyurethane systems, MOCA-HR also serves as an effective curing agent for epoxy resins, offering versatility across different thermoset material formulations.


    With its excellent thermal stability, consistent performance, and aesthetic benefits, MOCA-HR is an ideal choice for manufacturers seeking high-quality, visually appealing cast elastomers and durable epoxy systems.



    Packaging

    • Net Weight: 50 kg per unit or another
    • Packaging Material: Carton drum with an inner black polyethylene liner (ensures moisture resistance and product purity)
    MOCA-HR: High-Temperature Stable Curing Agent for Light-Colored Cast Polyurethane Elastomers 0

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

N
Nutto
Thailand Apr 16.2025
Excellent product! It is a good replacement of Chemlok 205.
D
Dmitrii
Russian Federation Feb 10.2025
Very good bonding performance!
M
Mohammed
Saudi Arabia Dec 2.2024
829GB works well. We apply between cured rubber sheet to steel as a strong adhasive..specially to steel roller and lining of tanks to protect steel from different liquid chemicals and other similar use.