A33 Catalyst (33% TEDA in DPG)

Overview

A33 is a solution of 33% triethylenediamine (TEDA) in 67% dipropylene glycol (DPG). This liquid form of TEDA is easy to meter and is one of the most widely used gelling catalysts for polyurethane foam.

Also known as

A33; 33% TEDA in DPG

CAS number

280-57-9 (TEDA); 25265-71-8 (dipropylene glycol)

Specifications

Test items	Specifications
Appearance	Yellowish transparent liquid
TEDA content /%	33.3±0.2
Water content /%	≤0.35
Viscosity (25℃) /mPa·s	114 (typical)
Specific gravity (20℃)	1.03 (typical)
Hydroxyl value /(mgKOH/g)	558 (calculated)
Flash point /℃	101

Applications

• Gelling catalyst for flexible slabstock and molded polyurethane foams
• Catalyst for semi-rigid, rigid and integral-skin foams
• Catalyst for elastomers, shoe soles and microcellular polyurethane

Packaging

200 kg/drum; 1000 kg/IBC.

Storage

Store in tightly closed containers in a cool, dry and well-ventilated place, away from acids and oxidizers. Amines can absorb moisture and carbon dioxide from the air.