CPP Film for Retort Application
HST-1 (RT) CPP
Structure
Corona treated layer
Transparent PP Core Layer
Sealable untreated layer
Description
It is a co-extruded, one side heat sealable and one side treated cast polypropylene film. This film is specifically designed to be the sealant layer for retort pouches
Features
- Excellent seal strength
- Suitable for High Retort (135°C /30 Min)
- Very good Seal strength after Retort
Applications
- Sterilization & Pasteurization
- Hot Filling
- Ready to eat food
Typical values
| Properties | Ref. | Units | ASTM#/ Test Method | HST-1 (RT) CPP |
|---|
| Physical Data | ||||||
| Average Thickness | Micron | D-374-C | 70 | 80 | 90 | |
| Gauge | 280 | 320 | 360 | |||
| Mils | 2.8 | 3.2 | 3.6 | |||
| Thickness Variation | %(±) | 5 | ||||
| Density | g/cc | 0.90 | ||||
| Average substance | g/m² | 63.00 | 72.00 | 81.00 | ||
| Surface Tension(min) | dynes/cm | D-2578 | 38 | |||
| Yield | m²/Kg | D-4321 | 15.9 | 13.9 | 12.3 | |
| in²/lb | 11159 | 9764 | 8679 | |||
| Optical Data | ||||||
| Haze | % | D-1003 | <25 | |||
| Mechanical Data | ||||||
| Tensile Strength | MD | kg/cm² | D-882 | 400 - 500 | ||
| TD | 200 - 300 | |||||
| Elongation | MD | % | D-882 | 700 - 900 | ||
| TD | 800 - 1000 | |||||
| Thermal Data | ||||||
| Heat Seal Strength (min.) | g/²5 mm | CTM | >3800 | |||
| Seal Initiation Temperature | °C / °F | CTM | 145/293 | |||
| CTM : Cosmo Test Method | MD : Machine Direction | TD : Transverse Direction | UT : Untreated |
| Disclaimer : The information provided above is based on COSMO FILMS LTD's conclusive tests, which are indicative only and provided as guidelines.They do not constitute a guarantee of any specific product attributes or the suitability of products for specific applications | |||
Updation Date : 2026-Jan-05