Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Composite Materials Functions
- Industrial Additives Functions
- Plastics & Elastomers Functions
Features & Benefits
- CASE Ingredients Features
- Materials Features
- Key Performance Benefits
- Low emission catalyst
- Long pot life and fast back-end cure
- Broad use of level range to meet desired reactivity requirements
Applications & Uses
- Applications
- Applicable Processes
- Compatible Polymers & Resins
- Industrial Additives End Use
- Plastics & Elastomers End Uses
- Product Applications
POLYCAT® SA 2 LE is recommended for low emissions flexible, rigid and castable polyurethane formulations for coatings, adhesives, composites, and elastomers. POLYCAT® SA 2 LE exhibits formulation latitude allowing for a broad use level range to achieve desired processing and reactivity requirements.
Properties
- Physical Form
- Appearance
- Light yellow liquid
- Soluble in
- Water
- Typical Properties
- Product Properties
POLYCAT® SA catalysts can be activated at different temperatures. By choosing the right catalyst you can tailor a delayed reaction and achieve both long pot-life and fast post-curing
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C) | 2600.0 | mPa.s | — |
| Density (at 25°C) | 1.13 | g/cm³ | — |
| Calculated OH number | 168.0 | mg KOH/g | — |
| Flash Point | min. 93 | °C | PMCC |
Technical Details & Test Data
- Viscosity Profiles in a Standard Aromatic Elastomer Formulation
Traditional polyurethane catalysts accelerate a polyol-isocyanate reaction at ambient conditions. However, when a delayed reaction profile is preferred, we offer the POLYCAT® SA series. These catalysts are activated by the natural exotherm generated during the formation of polyurethane or by using an external heat source, speeding up the cure time. POLYCAT® SA catalysts cure at different temperatures (as shown in the illustration below). By choosing the right catalyst you can tailor a delayed reaction profile to optimize your process and formulation.
The graphic below depicts the delayed action performance at ambient conditions of POLYCAT® SA 1/10, POLYCAT® SA 2 LE, POLYCAT® SA 4 and POLYCAT® SA 8. POLYCAT® SA 1/10 and POLYCAT® SA 2 LE have a more subtle delay. Due to its unique composition, POLYCAT® SA 2 LE can also be utilized to help reduce amine emissions. POLYCAT® SA 8 provides the longest delay as this catalyst activates at the highest de-blocking temperature. Additionally, the POLYCAT® SA series catalysts can be combined with other catalysts in our portfolio to optimize material properties and cure profile behavior.
Storage & Handling
- Storage Conditions
- Storage conditions: dry and cool place in factory-packed containers.
- Optimum storage temperature: 10 to 30 °C.