Conductive Coating
The application of a Conductive Coating to a plastic enclosure provides that box protection against EMI/RFI emissions. The coating itself is a paint filled with conductive particles to provide a thin, but highly conductive layer typically in the inside of the box. There are a number of different paint options, but it is common to use a Silver or Silver-coated Copper filler. These provide the best conductivity at the thinnest applications. At UVOX we use a wet-spray process to apply conductive paint.
The distinct advantage of conductive coating is that a metal enclosure is not needed; saving on weight and the associated costs of metal enclosures
Conductive coatings exhibits excellent adhesion and can be applied to most plastics (including ABS, PC, PBT) and with the use of specialised adhesion promoters even low surface-energy materials like Polypropylene can be coated with ease.
Form-in-Place Gaskets
Our Form-in-Place gaskets are dispensed using CNC machinery to apply a conductive EMI Shielding gasket or Environmental Seal directly onto enclosures, mouldings and covers. Form-in-Place is a process in which an un-cured silicone is applied to a sealing face and then allowed to cure at room temperature and humidity.
There are a number of distinct advantages to using Form-in-Place:
- Form-in-Place often exhibits lower compression forces than alternative gasket solutions
- Gaskets applied through Form-in-Place are easier to handle and assemble than O-rings or moulded gaskets
- They provide a effective method of utilising an electrically-conductive gasket
- Lifetime servicing and maintenance is easier as the gasket is less likely to be damaged when opening/closing the enclosure
UVOX MP Compound
UVOX MP Series of compounds has been specially developed for use with Form-in-Place applications. They consist of a silicone elastomer and, often, electrically-conductive filler. The filler is comprised of µm-scale electrically-conductive particles.
The silicone elastomer, acting as a binding-agent, is unaffected by most temperature changes and has an operating temperature range of -40°C to +200°C.
The MP Series of compounds cure at room temperature and humidity providing a safe method of curing when applied sensitive materials or enclosures. This is especially true for PCBs which can often be distorted or damaged by high temperatures or humidity.
The nature, configuration, size, quantity and distribution of particles determine the electrical abilities of the compound, and therefore the finished gasket. The cured gaskets are largely resistant to usual solvents and gases, including ozone.
Looking for something specific?
We offer a range range of standard products off-the-shelf or custom made
To take a look at our standard EMI Shielding product range, check out our Catalogue.