Knowde Enhanced TDS
Identification & Functionality
- Additives Included
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Key Characteristics
Low smoke, low toxicity, halogen free, flame retardant thermoplastic ceramifiable compound for cable sheathing. TP851 forms a strong cohesive char when exposed to flame and is particularly suitable for fire survival cable for use in emergency alarm, communication & lighting cable circuits.
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers Processing Methods
Properties
- Appearance
- Pellets
- Mechanical Properties
- Physical Properties
- Fire & Smoke Properties
- Thermo-Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Elongation at Break | 160 | % | IEC 60811-501 |
| Elongation at Break (After Thermal Aging: 7 Days at 100ºC) | 15 | % Variation | IEC 60811-401 |
| Elongation at Break (Water Immersion: 7 Days at 70ºC) | 15 | % Variation | IEC 60811-402 |
| Tensile Strength (at Break) | 12 | N/mm² | IEC 60811-501 |
| Tensile Strength (After Thermal Aging: 7 Days at 100ºC) | -15 | % Variation | IEC 60811-401 |
| Tensile Strength (Water Immersion: 7 Days at 70ºC) | -15 | % Variation | IEC 60811-402 |
| Value | Units | Test Method / Conditions | |
| Density | 1.4 | g/cm³ | BS EN ISO 1183-3 |
| Value | Units | Test Method / Conditions | |
| Halogen Acid Gas Evaluation | max. 0.5 | % | IEC 60754-1 |
| Smoke Emission 3m³ | Pass | % | BS EN 61034-2 |
| Value | Units | Test Method / Conditions | |
| Hot Pressure Deformation (at 80°C) | 25 | % | IEC 60811-508 |
Technical Details & Test Data
- Processing
Extruder - An extruder with an L/D ratio (length/diameter) between 15 and 24 and a screw with a compression ratio 1.2:1 are recommended.
Extruder Temperature Conditions - It is important that the melt temperature is not allowed to increase above 160°C. As a guide the following temperature profile is recommended:
Zone #1 Zone #2 Zone #3 Zone #4 Head Die Celsius 130°C 140°C 150°C 160°C 170°C 170°C Fahrenheit 266°F 284°F 302°F 320°F 338°F 338°F Screw Water Temperature - Not mandatory, if present we recommend 40-60°C
Recommended Screen Pack - Spacer ring or breaker plate only
Head & Tool Design - The head and tools should be so designed as to allow streamlined flow of material. To obtain the optimum in physical properties in the case of tubing tools, a maximum draw down ratio of 1.5:1 is recommended to avoid internal stresses.Color Masterbatches - EVA, preferable, and PE based color masterbatches including black, up to a maximum of 1%, have no detrimental effect on the properties, except for certain white pigments that can cause a discoloration under specific conditions, but will not affect fit form and function of the material. It is recommended that all masterbatches should be thoroughly dried before use for 8 hours at 60°C or 4 hours at 80°C in a de-humidifying drier.
Packaging & Availability
- Packaging
The following possibilities are available:
- Moisture resistant sacks containing 25kg
- Boxes with a moisture resistant heat sealed liner containing approximately 600kg
Storage & Handling
- Storage & Shelf Life
This material has unlimited shelf life. The following storage conditions are recommended:
- Packaging should remain sealed
- Avoid storage outside and in direct sunlight.