Providing excellence in service

and technical support

for our customers

TER AS Productos was founded in Barcelona in 2009 with the objective to strengthen the position of TER GROUP in the Spanish market. During the last years we have grown constantly gaining an important position in the different sectors our customers are part of.


Rubber additives

Rubber additives

Rubber additives are added to the compounds in small doses, for example, to improve homogeneity. Promix 400 is a mixture of dark hydrocarbons.


Promix 400 improves the miscibility of polar and non-polar rubbers with each other. This improves the processing properties during extrusion, punching, etc. The use of Promix results in smoother surfaces and less swelling after punching. It can also be used in the area of tires, rubber products, and seals.

All products

Contact Person

Alexander Sielmann


General Manager