A leading European manufacturer of buses for public transportation came to Polymer Technologies with a proposal. They wanted to expand into the North American market and needed to develop a new network of suppliers to be able to serve their growing clientele.
Previously, they had been using fiber insulation from a European manufacturer to improve the sound absorption and temperature control inside their buses. When designing vehicles for public transportation, comfort and safety are imperative, and wall and ceiling insulation plays an integral role in providing passengers with a smooth ride.
In need of an insulation supplier closer to their new market and a material that met or exceeded the properties of their original supplier’s material, the manufacturer turned to Polymer Technologies. The insulation needed to fit within the specific dimensions inside the wall and ceiling compartments of the buses. Fiberglass insulation typically has been the go-to solution for thermal control inside mass transit vehicles, but its inherent handling irritability and tendency to lose thickness and shape when subjected to vibration are driving OEMs to alternatives.
While fiberglass is a viable solution, our engineering team was able to offer the manufacturer an alternative thermal insulator for the walls and ceilings of their buses: POLYDAMP® Poly Fiber, Type V (PFPV). This vertically-lapped synthetic fiber material is suitable for acoustical and thermal insulation in applications requiring structural integrity and increased temperature resistance. PFPV resists water absorption and can be developed with a higher density for increased thermal and acoustical insulation, making it a suitable alternative to fiberglass and foam insulation.
To further improve durability and thermal and acoustical insulation, optional film facings can be applied. PFPV can be used with pressure sensitive adhesive, making it easier and safer to install than fiberglass.
The new vertically-lapped synthetic fiber was an improvement over the previous solution material as it provided:
With this solution in place, the bus manufacturer can now design vehicles with new materials from a local supplier.
These new materials provide comparable to improved results for end users. The manufacturer can produce long-lasting interiors with excellent thermal and acoustical properties for passengers while reducing their production costs.
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