ACCELERATOR 2950

ACCELERATOR 2950 is a powerful co-reacting accelerator for solvent-free and solvent-based epoxies and polyurethanes. It contains tertiary and secondary amino groups.

Functions: Accelerator, Curing Agent

Chemical Family: Tertiary Amines

End Uses: Epoxy Coating, Polyurethane Coating, Solventborne Coating, Solventless & High Solids Coating

Compatible Polymers & Resins: Epoxies (EP)

Features: Easy Mixing, Fast Cure, Low Viscosity

  • TypeDocument Name
View All Documents

Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Chemical Family
Function
Accelerator, Catalyst, Hardener, Curing Agent
Technologies
Product Families

Features & Benefits

CASE Ingredients Features
Key Benefits
  • Accelerator with no leaching effect.
  • Good property retention due to its amine functionality.
  • Enables solvent free coatings – low VOC formulations.
Key Properties
  • Co-hardener when used with polyamine, polyamidoamines and their adducts
  • Good compatibility with amine hardeners
  • Effective accelerator and co-hardener in polyurethane systems
  • Good for low temperature and waterborne systems
  • Accelerator with no leaching effect.
  • Good property retention due to its amine functionality.
  • Enables solvent free coatings – low VOC formulations.
  • Reactive
  • Tertiary amine based accelerator
  • For ambient cure epoxy systems
  • Low plasticising effect
Product Features
  • Reactive
  • Tertiary amine based accelerator
  • For ambient cure epoxy systems
  • Low plasticising effect

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Markets
Applications
Application Information

In solvent free coatings:

  • At low use levels, Accelerator 2950 produces the same effect as the industry standard tertiary amine such as Accelerator 960-1
  • At high use levels, e.g., 20phr, Accelerator 2950 increases cure speed dramatically and coatings are open to foo traffic after 24 hours at 5°C.

In solvent containing coatings:

  • At low use levels, Accelerator 2950 produces the same effect as Accelerator 960-1 but nearly twice the pot life.
  • At high use levels, Accelerator 2950 give the same effect as in solvent free coatings.

In polyurethane systems:

  • More dramatic results than in epoxy systems.
  • Extremely short de-molding times for tooling systems.

Properties

Physical Form

Regulatory & Compliance

Technical Details & Test Data

Effect
ARALDITE®GY 250 100 100 100      
ARALDITE®GZ 7071 X 75       100 10 100
ARADUR®2963-1 45 45 22      
ARADUR® 115       38 38 38
ACCELERATOR 2950 CH   1.5 20   0.7 6
Xylene / Butanol ( 4 : 1 )       72 70 67
Pot life (min) 40 22 12 390 180 30
Dust dry time 20°C 65% r.h. (h) 4 3 1 7 5 1
Persoz hardness 1 day 5°C (s) 22 30 240 30 24 100

 

Test Data

No Leaching Effect:

Its unique amine functionality gives it the ability to co-react with the epoxy resin, making it part of the polymer backbone. The normal leaching is 5 times less than other accelerators, minimizing the impact on chemical or corrosion resistance properties.

Accelerator 2950 - Test Data - 1

Reference system: ARALDITE® GY 250 fully cured with IPDA based hardener ARADUR® 20315

Drying and Gel Time:

Accelerator 2950 offers a good balance between faster drying time and reduction of gel time also at low temperatures.

Accelerator 2950 - Test Data - 1

Standard low viscosity Epoxy

Accelerators for Anhydride Hardeners
Product Latency / reactivity Impact on mechanical properties Form/processability
Reference Methyl Imidazole (MI) Very fast High Tg Standard modulus Liquid (~ 40mpa.S)
Accelerator 2950 Almost equivalent to reference Higher modulus medium Tg Liquid (~ 4000 mpa.S)

 

Kinetics
Viscosity build-up, time to reach 1 000 Pa.s

Accelerator 2950 - Accelerators for Anhydride Hardeners - 1

 

Thermo-mechanical properties
Modulus and Tg

Accelerator 2950 - Accelerators for Anhydride Hardeners - 1

 

Mechanical properties
Elongation at break and flexural strength

Accelerator 2950 - Accelerators for Anhydride Hardeners - 1

 

Note: Detailed information about Accelerators for dicyandiamide hardenersAccelerators for amine cure from RT to 60°C can be accessed through this link.

Packaging & Availability

Regional Availability
  • Americas
  • Asia Pacific
  • Australia
  • EIMEA

Storage & Handling

Storage Information
Accelerator 2950 should be stored at room temperature in the original sealed container. The expiry date is indicated on the label.
Handling Precautions

Caution
To protect against any potential health risks presented by our products, the use of proper personal protective equipment (PPE) is recommended. Eye and skin protection is normally advised. Respiratory protection may be needed if mechanical ventilation is not available or is insufficient to remove vapors.

Other

Appearance
Pale yellow liquid
Color (SDS)
Yellow
Odor (SDS)
Amine like
Chemical Properties
ValueUnitsTest Method / Conditions
Amine Hydrogen Equivalent Weight75.0 g/eqg/eq
Amine Value640.0-700.0 mg KOH/gmg KOH/g
Physical Properties
ValueUnitsTest Method / Conditions
Density0.99 g/cm³g/cm³At 20°C
Flash Pointmin. 110.0 °C°CClosed Cup
Viscosity2000.0-6000.0 cPscPsAt 25°C
Application Information
ValueUnitsTest Method / Conditions
Mix Ratio39.0 g/100gg/100g