Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Composite Materials Functions
- Industrial Additives Functions
- Plastics & Elastomers Functions
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Materials Features
- Key Performance Benefits
- Very long pot life
- Mercury and heavy metal free
Applications & Uses
- Applications
- Applicable Processes
- Compatible Polymers & Resins
- Industrial Additives End Use
- Plastics & Elastomers End Uses
- Use Level
- 0.5 - 1.5 pphp
- Product Applications
POLYCAT® SA 8 is recommended for coatings, adhesives, sealants, elastomer or composite applications where a long open time is required to achieve sufficiently long handling time, to achieve improved flow or improved substrate wetting. Curing time of POLYCAT® SA 8 based formulations can be improved when combining with appropriate pot life extenders available from Evonik.
Properties
- Appearance
- Clear liquid
- 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 30°C) | 9500.0 | mPa.s | — |
| Density (at 25°C) | 1.18 | g/cm³ | — |
| Calculated OH number | 258.0 | mg KOH/g | — |
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
- Shelf Life
- 12 months
- Storage Conditions
- Storage conditions: dry and cool place in factory-packed containers.
- Optimum storage temperature: 10 to 30 °C