The EU and China have banned HCFC-141b as a blowing agent, but some illegal use may still exist. Identification methods: 1) Odor – fluorocarbon-blown XPS has a slight ether smell, CO₂-blown is odorless; 2) Density distribution – CO₂-blown has finer, more uniform cells (deviation <±3%), fluorocarbon-blown shows larger cells and density fluctuations; 3) Thermal stability – newly produced CO₂-blown XPS has thermal conductivity ~0.030 W/(m·K), but CO₂ diffuses quickly, rising to 0.034–0.036 after six months; fluorocarbon-blown has lower initial thermal conductivity (0.026) but slower increase over time due to lower gas diffusivity; 4) Request blowing agent MSDS documentation from the supplier. Environmentally, CO₂ or cyclopentane blown products should be chosen.
How can you determine whether your XPS foam core was produced with CO₂ blowing or fluorocarbon blowing?
- XPS Foam Core
- PET Foam Core
- PVC Foam Core
- PU Foam Core
- PMI Foam Core
- PP Honeycomb Core
- Balsa Wood
- XPS Backer Board
- FRP XPS Sandwich Panel
- FRP PET Sandwich Panel
- FRP PVC Sandwich Panel
- FRP PP Honeycomb Panel
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- 0086–15818199755
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Contact
- info@onebondgroup.net
- 0086–15818199755
- whatsapp: +65 91730168
- wechat:15818199755
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