Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Industrial Additives Functions
- Plastics & Elastomers Functions
Features & Benefits
- Industrial Additives Features
- Key Performance Benefits
- Strong gel catalysis
- Multi-purpose amine catalyst for many foam types
- Specialty Catalysts - High Performance
DABCO® DC 1 is a delayed-action catalyst for use in all castable (foamed and high density) polyurethane systems. It has a reactivity similar to standard amine catalysts such as DABCO® 33 LV while also providing a more efficient hardness build-up. DABCO® DC 2 shows a higher reactivity compared to DABCO® DC 1 with shorter pot life and faster return-toservice time. For application sensitive to VOC’s emissions or staining issue, DABCO® DC 5 LE offers similar benefits to DABCO® DC 2 with a lower emission profile. POLYCAT® SA 20 exhibits a similar front-end reactivity as DABCO® DC 1, while meeting low emission requirements and providing an option that does not contain dibutyltin. For situations that require both tin-free and low emission solutions, we offer POLYCAT® SA 5 as a high-performance delayed-action catalyst. DABCO® DC 1, DABCO® DC 2, and POLYCAT® SA 5 are highly efficient and can be used at low levels as co-catalysts in existing formulations to help increase the cure speed of the system without affecting the front-end of the reaction, while maintaining working life.
DABCO® DC 1 vs DABCO® 33 LV
POLYCAT® SA 20 vs DABCO® T 12
Adjusted to similar pot life times
Applications & Uses
- Applications
- Applicable Processes
- Compatible Polymers & Resins
- Industrial Additives End Use
- Plastics & Elastomers End Uses
- Product Applications
- DABCO® 33 LV accelerates mainly the isocyanate-polyol reaction, but to some extent also the water-isocyanate reaction. This unique catalytic performance improves production safety, and at the same time, ensures a wide processing latitude.
- Therefore, DABCO® 33 LV is a suitable and important catalyst for the entire field of polyurethane processing.
- DABCO® 33 LV has been proven particularly suit- able for the production of conventional flexible foams (slabstock and molded) and also in formulations for cold cured (HR) foams (slabstock and molded).
- Further fields of application are rigid polyurethane foams, microcellular foams and polyurethane coatings and elastomers.
- Due to the low viscosity and rapid solubility in water and polyol, DABCO® 33 LV can easily be dosed or blended with other components. It is compatible with other commonly used polyurethane catalysts and additives.
- The optimal use level depends strongly on the application, foam type and specifics of the formulation.
Properties
- Physical Form
- Appearance
- Colorless to amber liquid
- Soluble in
- Water
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C) | 120 | mPa.s | — |
| Density (at 25°C) | 1.03 | g/cm³ | — |
| Calculated OH Number | 560 | mg KOH/g | — |
| Flash Point | 85 | °C | — |
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
- Shelf life: minimum 12 months.
- Storage conditions: dry and cool place in factory-packed containers.
- Optimum storage temperature: 10 to 30°C.