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Blend of tertiary amines in a polyether polyol 

Addocat 1926 is a balanced catalyst for rigid foam with improved metering compared to 726 B.

Addocat 1926 is a mixture of a tertiary amine and a polyol.
Addocat 1926 acts as a catalyst for the production of rigid polyurethane foams. 

Addocat 1926 is hygroscopic and should therefore be protected from air humidity. 
As the product contains only 50 % of active ingredient, Addocat 1926 must be used at dosages of 2 - 6 p.b.w., calculated on 100 p.b.w. polyether polyol. 

Addocat 1926 applications include discontinuous production of foam sheets and sandwich panels, discontinuous heat/cold insulation of piping and refrigeration equipment, on-site casting.
Addocat 1926 has a shelf life of minimum six months.

Function of Addocat 1926:
Addocat 1926 is used for the production of polyurethane flexible slabstock foam and hot-moulded foam. 
Addocat 1926 is also used for HR foam and, as a co-catalyst, for rigid foams.

Product Applications of Addocat 1926:
Body for electrical equipment
Construction material
Housing for Electric and Electronics
In-situ foams
Pipe insulation
Polymer auxiliaries

Product description of Addocat 1926:
Chemical composition:
mixture of bis-(2-dimethyl-aminoethyl)-

Physical form:
ether and dipropylene glycol clear, colourless to

Density (20 °C):
approx. 0,90 g/cm³

Viscosity (25 °C):
approx. 4 mPa.s

Initial boiling point:
approx. 170 °C

Solidification point:
approx. - 80 °C

Flash point:
(DIN EN 22719, ASTM-D 93)
approx. 71 °C

Miscibility with water:

Water content:
max. 0.5 %

Active substance:
70.0 ± 1.0 %

Product information of Addocat 1926:
Addocat 108 is a powerful catalyst for the gas reaction.

Flexible polyether foam:
Addocat 108 is one of the standard catalysts used to promote the gas reaction in the production of polyether slabstock foam and hot-moulded foam (dosage 0.1 - 0.15 p.b.w. on 100 p.b.w. polyol). 
Here it is always used in combination with Addocat SO (0.1 - 0.3 p.b.w.).

HR foam (moulded and slabstock foam):
In this case the reaction can be controlled with Addocat 108 (0.1 - 0.5 p.b.w. on 100 p.b.w. polyol) in combination with Addocat 105 (0.3 -1.0 p.b.w.).

Filling foam:
In the production of semi-rigid filling foam it has been found advisable to use triethanol amine (up to 4.0 p.b.w.) in addition to Addocat 108. 
This gives a more open cell structure.

Rigid foam:
In rigid foam systems Addocat 108 is used only as a co-catalyst in combination with Addocat 726 b, Addocat 1926, Addocat 1221 or Addocat 9412.
Even small additions of Addocat 108 (0.1 p.b.w.) improve the flowability of the system. 

Applications of Addocat 1926:
- Continuous production of panels and slabstock.
- Discontinuous heat/cold insulation of piping and refrigerators.

Packing of Addocat 1926:
Metal cans, contents 50 kg
Metal drums, contents 175 kg
Plastic-IBC, contents 800 kg

Storage stability of Addocat 1926: 
When Addocat 108 is stored in firmly closed original containers a shelf life of 12 months can be expected. 
Possible yellowing of the liquid in the course of time has no influence on the product's catalytic effect.

Handling of Addocat 1926:
Consult material safety data sheet (MSDS) for additional handling information for Addocat 108 .

Desmorapid trial product PU 1926
Tertiary amine in polyether polyol

Description of Addocat 1926:
Catalyst for the production of rigid polyurethane foams.

Chemical Composition of Addocat 1926:
Blend of N,N-dimethylcyclohexylamine and a polyether polyol.

CAS Registry Number:

Clear, slightly yellowish liquid.

Partially miscible with water.

Typical Properties of Addocat 1926:
Property / Nominal Value / Unit
Active ingredient content / approx. 50 / %
Amine number / approx. 137 - 147 / mg (HCl)/g
Density at 20 °C / approx. 0.94 / g/cm³
Flash point / approx. 44 / °C
Hydroxyl value / approx. 190 / mg (KOH)/g
Initial boiling point / approx. 150 / °C
MDI basic value per 1 pbw / approx. 0.46 / pbw MDI (NCO = 31 %)
Melting point / approx. -62 / °C
Viscosity at 25 °C /7 approx. 15 / mPa·s
Water content / max. 0.5 / %

Applications of Addocat 1926:
Addocat 1926 is a balanced tertiary amine catalyst which is used exclusively for rigid polyurethane foam systems. 
Addocat 1926 is a solution of approx. 50 % of active ingredient in a polyether polyol, making it particularly suitable for simple, yet accurate metering units as well as for automatic metering.
• Continuous and discontinuous production of foam sheets and sandwich panels
• Appliance insulation
• Discontinuous heat/cold pipe insulation
• On-site casting
Typical dosage of Addocat 1926 is 2.0 - 6.0 pphp.

Packaging of Addocat 1926:
Plastic containers, contents 850 kg.

Chemical composition of Addocat 1926:
Mixture of bis(2-dimethylaminoethyl) ether and dipropylene glycol.

Typical properties of Addocat 1926:
Active ingredient content: 69.0 - 71.0 %
Appearance: clear, colourless to slightly yellowish liquid
Density at 20 °C: approx. 0.90 g/cm³
Flash point: approx. 71 °C
Initial boiling point: approx. 170 °C
Pour point: approx. - 80 °C
Solubility: miscible with water
Viscosity at 25 °C: approx. 4 mPa·s
Water content: max. 0.5 %

Storage conditions of Addocat 1926:
Addocat 1926 is to be stored in a cool and dry place. 
When Addocat 1926 is stored in firmly closed original containers at dry conditions (hygroscopic) at approx. 20 °C, a shelf-life of 12 months from manufacturing date can be expected. 

When storing the product for long periods at temperatures exceeding 30 °C discoloration may occur even in closed original containers. 
This does not have a negative impact on catalytic activity. 

The contents have to be thoroughly homogenized before use. 
The Addocat 1926 containers should be resealed tightly after use to prevent contamination by impurities and exposure to moisture.

Handling of Addocat 1926:
Consult the safety data sheet for relevant safety data & references as well as possibly necessary warning labels.

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