Beechcraft - creators of PU Mouldings, RIM technology, Injection mouldings, Rigid Polyurethane Technology and tooling

   
   
   
   
   
   
   
   


 

 










MOULDING MATERIAL

Our standard PU System is S1140/11, a heavily flame retarded Rigid Polyurethane Foam System suitable for medium to high density mouldings.
This material is recognised as complying with the UL94 requirements and is rated V/0 and has a reference E173211.
This material is CFC-free and has an ozone depletion potential (OPD) of zero.

PAINT

Mouldings are generally supplied painted in Trimite Plastilac 2 pack PU enamels - in any colour - and usually with a spatter type finish. Other finishes and paints can be applied as required.

RFI

EMC coating can easily be applied on to well-prepared internal surfaces. Usually a nickel/acrylic coating will provide sufficient protection - down to a resistivity of around 5 ohms square. Other materials such as a silver/gold coating can be applied which will provide a much higher level of EMC protection.

INSERTS

Moulding-in threaded brass inserts is always preferable - an M4 insert will provide 140lbs pull-strength when moulded in with 3mm material around the insert. This equates to a typical 12mm diameter boss for an M3 or M4 insert. Tappex Yardley Type C inserts are our preferred choice but shorter or through inserts can also be used.

RoHS and WEEE DIRECTIVE

Both our PU material and Paint suppliers can provide guidance notes confirming that their materials comply with these regulations and certify that the material we use is free from the following chemicals:

  • Lead, Mercury, Cadmium, Hexavalent Chromium,

  • Polybrominated Biphenyls (PBBDs), Polybrominated Diphenyl Ethers (PBDEs).








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