FOAMSTAR ST 2438
FOAMSTAR ST 2438
FOAMSTAR® ST 2438 is a 100% active defoamer compound combining a hyper-branched Star polymer with high-end organo-silicones to deliver fast foam knock down with very high efficiency.
FOAMSTAR ST series represents a novel series of defoamers based on new defoamer chemistry. It is the first new defoamer chemistry in over 30 years. FOAMSTAR ST series of defoamers is effective in high gloss paints and coatings based on acrylic, styrene acrylic and vinyl acrylic latex.
This product can be used at levels of 0.25 % to 0.50 % based on total weight of paint depending on the individual paint formulation. FOAMSTAR addition may be equally divided between the grind and let-down stages. Its effectiveness is the same in the grind and the let-down
Features & Benefits
- Does not reduce gloss of high gloss paints and coatings
- Effective in difficult to defoam high gloss formulations
- Fast bubble break versus conventional defoamers
- Effective against micro foam
- Does not separate or settle
- Easy to incorporate
- Very good persistence
- Effective in deep and clear/neutral basis
Properties
| Typical Properties | Value |
| Density | 0.95 g/cm3 |
| Viscosity at 25°C | 109 – 169 mPas |
| Appearance | colourless to yellowish liquid |
| Wt/gal at 25°C | 7.9 – 8.2 lbs |
| Active Matter | 100% |
| Colour Number (Hazen) | < 200 |
| Solubility (10% in water) | non-dispersible |
