Quick selection
- Optical priority, low iron
- CENSIL 773
- Tight appearance requirement
- CENSIL 779
- Conventional cost position
- CENSIL 185P
Where we add value
- Reduce interlayer blocking in film rolls and improve opening, winding and unwinding efficiency.
- Balance antiblock effect, haze, clarity, coefficient of friction and dispersion.
- Offer low-iron, high-purity and conventional precipitated silica candidate routes.
Who this track serves
- PE, PP, PET, BOPP, BOPET, CPP and PA film manufacturers.
- Food packaging film, industrial packaging film, laminating film and functional film companies.
- Film customers producing their own masterbatch or working closely with functional masterbatch plants.
Grades on this track
Low-iron high-purity routes and a conventional precipitated route, so optical requirements and cost position can both be tested. Final selection follows your film type, target haze, opening and COF requirements.
We publish the selection logic, not the numbers. Data sheets are issued per enquiry so the figures match the current supplier revision and your application.
Typical values for orientation only, not a specification. The current supplier technical data sheet governs for quotation, COA and customer testing — request it for the grade you are evaluating.
How to run the trial
| Test dimension | What to watch | What it tells you |
|---|---|---|
| Antiblock performance | Interlayer separation and opening force | Tells you the core performance |
| Haze and clarity | Change in film optical appearance | Tells you packaging appearance fit |
| Coefficient of friction | Slip, conveying and converting behaviour | Tells you downstream efficiency |
| Dispersion | Gels, fish-eyes or streaks | Tells you film quality stability |
| Process fit | Extrusion, screen pack and bubble stability | Tells you the line-introduction risk |
Where we sit against the reference brands
How we approach it
CENSIL 773 / 779 can be run first as the low-iron, high-purity route, with CENSIL 185P as a conventional precipitated comparison. Final selection follows the customer's film type and target haze, opening and friction requirements.