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Polynt Group SMC LS 3681 CL1
Polynt Group SMC LS 3681 CL1 is a sheet molding compound based on an unsaturated polyester resin, fire retardant grade, halogen-free, reinforced with glass fibers. This SMC has been developed for railway applications. Good mechanical properties and good fire protection grade are combined into the SMC LS 3681 CL1. SMC LS 3681 CL1 complies with uni cei 11170-3 CL1a and electrical applications uni cei 11170-3 lr4. SMC LS 3681 CL1 is formulated according to RoHS, REAC regulation SVHC and WEEE European legislation.
Product families
Applications
Automotive & Transportation — Transportation
- Rail & Mass Transit
Product Families
Composite Materials — Prepregs & Molding Compounds
- Sheet Molding Compounds (SMC)
Other characteristics
- Functions
- Molding Compound
- Markets
- Automotive & Transportation
- Technology
- Composite Materials
- Material Features
- Flame Retardant
- Good Mechanical Properties
- Handling
Storage at 15-25°C, in dry ambient and out of direct sun light; Molding time 40 s/mm; Molding pressure 70 - 110 bar; Molding temperature 140 – 160°C
- Composite Materials Functions
- Molding Compound
Technical data
Table 1 of 1
16 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Rockwell Hardness | 80 | HRm | ISO 2039-2 |
| Heat distortion temperature HDT | min. 200 | °C | ISO 75 |
| Flexural modulus | 9.5 | MPa | ISO 14125A |
| Linear Shrinkage | 0,0 | % | ISO 2577 |
| arc resistance | min. 180 | s | ASTM D 495 |
| Ignitability to direct impingement of flame | max. 150 | mm | ISO 11925-2 |
| Density | 1,8 | g/cm3 | ISO 1183 |
| Quantity of glass | 25 | % | ISO 11667 |
| Impact strength (Charpy) | 70 | KJ/m2 | ISO 179 |
| Water absorption | max. 0,2 | % | ISO 62 Met. 1 |
| Flexural strength | 150 | MPa | ISO 14125A |
| Reaction to fire | 1:00 AM | Class | UNI CEI 11170-3 |
