IR-825 Silicone Surface Additive (equivalent to BYK-325)
Composition:
| IR-825 | Polyether modified polymethyl alkyl siloxane solution (equivalent to BYK-325) |
Typical Properties:
| Density at 20°C, g/ml | Non-volatile matter, % | Flashpoint, °C | |
| IR-823 | 1.00 | 52 | >46 |
| Solvents: alkylbenzenes/butyrolactone 1/1 | |||
Proposed Dosages:
| Dosage based upon inorganic pigments, % | |
| IR-825 | 0.01-0.4 |
Functions:
These additives slightly reduce the surface tension of paint systems, which thus improves flow and leveling and displays partial defoaming properties. Additionally, they prevent “Bénard Cell” formation.
Uses:
| Solvent-borne coatings | Aqueous coatings | |
| IR-825 | Recommended | Suitable |
Addition Methods&Process Technology Instructions:
These additives can be added during any production process, including post-addition.
Special Features:
| IR-825 | IR-825 prevents ghosting (wipe-marks) if recoated with the same paint. It neither causes rewetting problems nor influences recoatability. |
Packing:
Packed in iron drums of 25 or 200kg net each. The validity period is 12 months in sealed containers.
Special Notes:
| IR-825 | Products may become solid if temperatures are below 15°C. Heat up to <50°C and mix well before use. |