Frequently Asked Questions
Welcome to the Beechcraft FAQ page! Here, we’ve compiled answers to some of the most commonly asked questions about our polyurethane (PU) moulding services, product design, tooling, and more.
The Advantages of Using Polyurethane
- Tough, Rigid Mouldings
- Cost-Effective Low-Volume Production
- Excellent Strength-to-Weight Ratio
- Design Flexibility
- Durable and Long-Lasting
- Customisable Finishes
What size limits do we have?
We can mould and process parts up to 1.5m x 1m x 0.5m right down to small complex hand-held parts.
What tolerances do we work to?
We can create parts with a linear tolerance of +/- 0.4mm from drawings to first-off samples, and thereafter those dimensions can be repeated within +/-0.25mm.
What densities do we work to?
An optimum mixture of mechanical properties is achieved within a density range of 600 to 800 kg/m3. Lower densities can be moulded in order to reduce weight or improve temperature insulation properties.
What temperature limits will PU withstand safely?
Parts produced at our recommended 600 to 650 kg/m3 density have proved to be stable down to temperatures of minus 40 °C and up to 80 °C. This is a manufacturer’s stated top limit-before distortion however, so we recommend a safe upper temperature limit of around 60 °C to preserve cosmetic integrity.