Our standard PU system is S1140/11 flame-retardent Rigid polyurethane Foam System: it is self-skinning and suitable for producing rigid, high density structural mouldings.
This material is recognised as complying with UL94 requirements and is rated V0 and it has a reference E173211.
The material is CFC-free and has an ozone depletion potential (OPD) of zero.
Other, more robust systems are available for those applications where extra toughness is required for extremely hostile environments and applications.
All our mouldings are thoroughly abraded by grit-blasting prior to making good any surface blemishes (visible to the eye at arms length), and then primed before applying one or two coats of two-pack PU enamels.
Various finishes can be specified using these paints varying from the popular traditional hard-wearing spatter/texture right up to a variety of high gloss level finishes.
We also offer a range of non-standard finishes for those extra-special applications sometime called for by clients. These include various texture-simulating finishes and wet-transfer 'hydro dipped' high-gloss finishes such as marble, wood or carbon-fibre effects
Many enclosures require some degree of EMC protection and we provide this by spraying (after thorough surface abrasion) RFI coatings to internal surfaces as required.
Our standard nickel/acrylic based RFI paint is a popular coating providing standard level of EMC protection down to a resistivity of <5 ohms square, adequate for normal purposes.
If necessary, other protective materials such as silver/gold coatings can be applied which will provide a much higher level of EMC protection.
It is always preferable to mould-in our standard brass inserts for maximum security – an M4 insert for example will typically provide a pull-strength of around 140lbs (65 kilos) when moulded-in with 3mm of material moulded around it. This would equate to a 12mm diameter boss for an M3 or M4 insert.
Tappex Yardley C type inserts (blind to minimise PU ingress) are our preferred choice although shorter or through inserts can be used where appropriate to the design.
We can screen print multi-coloured logos and type matter in surprisingly fine detail and registration, even on to curved surfaces providing these are no smaller than say, a 400mm radius. Just provide us with artwork, or film positives plus a drawing reference for location.