Addocat® 108

Mixture of bis(2-dimethylaminoethyl) ether and dipropylene glycol.

Addocat®108 is a strong catalyst for the blowing reaction.
Flexible foam: Addocat® 108 is one of the standard catalysts used to promote the blowing reaction in the production of PUR ether flexible slabstock foam and hot-molded foam (0.1 - 0.15 parts by weight Addocat® 108 on 100 parts by weight polyol). Here it is always used in combination with Addocat® SO (0.1 - 0.3 parts by weight). HR foam (molded and slabstock foam):

In this case the reaction can be controlled with Addocat® 108 (0.1 - 0.5 parts by weight Addocat® 108 on 100 parts by weight polyol) in combination with Addocat® 105 (0.3 - 1.0 parts by weight).

• Filling foam: In the production of PUR semi-rigid filling foam it has been found advisable to use triethanol amine (up to 4.0 parts by weight) in addition to Addocat® 108. This results in an improved open cell structure.
• Rigid foam: In PUR rigid foam systems Addocat® 108 is used only as a co-catalyst in combination with Addocat® 726 B, Addocat® 1926. Even small additions of Addocat® 108 (0.1 parts by weight) improve the flowability of the system.
  • Continuous production of panels and slabstock.
  • Diskontinuous heat/cold insulation of piping and refrigerators.

Addocat® 108 is to be stored in a cool and dry place. When Addocat® 108 is stored in firmly closed original containers at around 20 °C, a shelf-life of 24 months from manufacturing date can be expected. When storing the product for long periods diskoloration 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 containers should be resealed tightly after use to prevent contamination by impurities and exposure to moisture.