IR-125 Organic Silicon Surface Additive (equivalent to TEGO-450)


IR-125 Polyether siloxane copolymer (equivalent to TEGO-450)

Typical Property

Density at 20°C g/ml Non-volatile matter % Flashpoint °C
IR-125 1.02 >97 >100
These properties are provided as typical properties. NOT THE PRODUCTS TECHNICAL INDEX.

Proposed Dosages

Wood and furniture coatings Waterborne and solvent industrial coatings Automotive coatings Radiation-curing printing inks and overprint varnishes based on the epoxy resin (cationic curing) leather coats based on polyurethane, acrylic and nitrocellulose binders
IR-125 0.05-0.5% 0.05-0.3% 0.03-0.2% 0.05-1% 0.1-1.0%
The above-recommended dosages strongly depend on pigment particle size. Optimal dosages should be calculated in the laboratory according to a different formula.

Addition Methods&Process Technology Instructions

IR-125 – Add to the coating as supplied or after predilution.
– Conducive to addition and mix by adding suitable solvent for predilution


Flow leveling Water
Degassing effect Anti-crater effect Anti-blocking/
release effect
IR-125 4 5 5 0 4 3
0=no effect……5=strong effect

Special Features

IR-125 – commonly used in waterborne, radiation-curing, and solvent-borne formulations
– outstanding effectiveness in high-solids formulations
– highly effective
– highly compatible (minimized risk of haziness)
– good recoatability
– improve scratch resistance
– minimal influence on inter-coat adhesion
– produce a slippery handle in leather topcoats


Mixing ratio parts by weight water Butyl glycol acetone Butyl acetate styrene TPGDA xylene Mineral spirit
IR-125 1:100 + + + + + + + +
1:4 + + + + + + +
+=clear soluble, o=opalescent, -=cloudy insoluble

Packing and Storage

Packed in iron drums of 25 or 200kg net each. Validity period is 12 months in sealed containers.