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POLYCAT® SA 1

POLYCAT® SA 1 is a heat-activated, delayed-action polyurethane catalyst that is based on a strong cyclic amine called 1,5-diaza-bicyclo (5.4.0) undec-5-ene. It consists of POLYCAT® DBU and an organic acid "blocker." At room temperature, POLYCAT® SA 1 has low activity, but when heat is applied, its activity increases and becomes comparable to that of metallic salts. When POLYCAT® SA 1 is added to conventional amine catalyst systems, it acts as a delayed-action catalyst. It has a minimal impact on the initial reaction and does not significantly affect the flowability of the foaming mass. Its primary effect is on the final curing properties of the foam, allowing for accelerated curing and improved demould time. This material is a light brown liquid with low volatility and a slight amine-like odor. It is miscible with water and soluble in most organic solvents.

Brand: POLYCAT (9 products)

Functions: Catalyst

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

CASE Ingredients Functions
Catalyst
Industrial Additives Functions
Catalyst
Plastics & Elastomers Functions
Catalyst
Technologies
CASE Ingredients,
Elastomers,
Industrial Additives & Materials,
Plastics
Product Families
CASE Ingredients — Additives
Catalysts & Initiators
Industrial Additives & Materials — Catalyst Ingredients
RTU Catalysts
Elastomers — Elastomer Additives
Catalysts, Initiators & Crosslinkers
Plastics — Polymer Additives
Catalysts, Initiators & Crosslinkers

Features & Benefits

Materials Features
Good Mold Release,
Low Volatility,
Reduced Water Sensitivity
Key Performance Benefits
  • Non-hydrolyzable
  • Delayed action catalysis
  • Improved demold

Applications & Uses

Markets
Consumer Goods,
Electrical & Electronics
Applications
Consumer Goods — Luggage & Leather Goods
Electrical & Electronics — Parts & Components
Batteries
Applicable Processes
Artificial Leather Manufacturing,
Batteries Manufacturing
Compatible Polymers & Resins
Polyurethanes (PU)
Industrial Additives End Use
Batteries,
Foams,
Polyurethane Foams,
Pour-In-Place Rigid Foam
Plastics & Elastomers End Uses
EV Battery,
EV Battery Management System,
EV Battery Pads,
Synthetic Leather
Product Applications

POLYCAT® SA 1 is recommended for evaluation as a co-catalyst with conventional catalysts in the following polyurethane systems:

  • Integral skin: It accelerates cycle times with no effect on cream times. 
  • HCFC-141b-blown, water-blown and froth pour-in-place rigid systems.

Properties

Physical Form
Liquid
Appearance
Light brown liguid
Miscible in
Water
Soluble in
Water, Organic solvent
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)433.0mPa.s-
Density (at 25°C)1.07g/cm³-
Flash Point94.0°CPMCC
Product Properties

POLYCAT® SA 1 - 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

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.
POLYCAT® SA 1 - Viscosity Profiles in A Standard Aromatic Elastomer Formulation

Storage & Handling

Shelf Life
12 months
Storage Conditions
  • Shelf life: minimum 12 months. For exact date of expiration, please consider CoA.
  • Storage conditions: dry and cool place in factory-packed containers.
  • Optimum storage temperature: 10 to 30 °C.