CATALYST​

Generally, a catalyst is defined as a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions than otherwise possible, or an agent that provokes or speeds significant change or action.

AMINE CATALYST is used to control and/or balance both the gelling reaction and the gas-forming or foaming reaction responsible for foam formation.

A substance containing tin while performing a catalytic function is called a TIN CATALYST. Tin is a silvery metal that has a low melting point. They are most commonly used in organic synthesis, particularly in the production of polymers and fine chemicals.

While the precious metals in most catalysts are rare and could eventually run out, POTASSIUM is an abundant element on Earth. Potassium octoate supports the isocyanate reaction and is used in a wide variety of rigid foam applications.

AMINE / TIN CATALYST​

FEATURES​

Blowing (gas generation) reaction: CO2 gas generation for open cells.

Gelling (polymerization) reaction: Urethane reaction for close cell​.

What happens when AMINE: shortage – Slow CT/RT, less open cell, less air flow, excess - Quick CT/RT, more open cell, foam split​.

What happens when TIN: shortage - Foam split, collapse, excess – Closer cell, shrinkage

DOSAGE​

Amine: 0,1 - 0,5 php / Tin: 0,1 - 2,0 php