Maintain Safety with Electrical Insulation
Sourcing effective Electrical Insulation is a must for anyone working in Electronics. Wherever there is electrical flow there is a requirement to maintain electrical isolation within the assembly and also to maintain safety for the users.
Materials Direct understands the importance of electrical insulation and provides our clients with the highest quality electrical insulators and materials, custom made from sheet materials to meet your specification.
View All ProductsLatest Electrical Insulation Products
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- UL94 VTM-0 rated down to 130µm
- High dielectric strength
- Thermoformable and die-cut capable
- A1 = Adhesive on Side (3M 467MP)
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Select options
- UL94 VTM-0 rated down to 130µm
- High dielectric strength
- Thermoformable and die-cut capable
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Select options
- Low water absorption
- Good dimensional stability
- Excellent Electrical Properties
Custom Cut Materials
Materials Direct is approaching this market in a way that is easy to order and specify in Electronics across all industries. Customers who need a certain brand of material that does not appear on the site can apply for us to add this stock to the site’s portfolio based on potential usage.
Instant Quotes – Purchasing Made Easy
The main problem for design engineers and purchasing has been until now the quick supply of parts as often the custom pad is one of the last items to be specified in the design of an Electronic assembly.
Materials Direct not only provides an instant quote but gives the buyer the offer of uploading their custom design for it to be manufactured within 24hours if the material is in stock.
Avoiding Short Circuits with Electrical Insulators
In order for Electronics to run safely, it is essential to avoid short circuits. Whether you’re looking to isolate a complete printed circuit board or a section of it from its enclosure, we can produce a custom shape to suit your PCB.
Often the Electrical insulators need to be bigger than the items needing to be isolated as there is a requirement for creepage and clearance to maintain safety and avoid short circuits in higher voltage applications.
Understanding Clearance and Creepage in Electronics
Clearance is the shortest distance in the air between two conductors. Creepage is the shortest distance to another conductor along the surface of the insulating material.
With creepage the choice of insulating material matters. This is because when a voltage creates a conductive path along the surface of the insulator it can break down that surface, resulting in a more conductive path between components with high potential.
The characteristic that measures this is called the CTI (Comparative Tracking Index). The higher the CTI of a material, the more insulating it is. Selecting a material with a higher CTI provides greater protection of creepage.
Standards such as IEC 60601 and IPC 2221 give the specific creepage and clearance requirements for your assembly.
Pure Electrical Insulation
Complete and effective Electrical isolation can be achieved with high spec materials such as mica, Mylar Melinex, Nomex, and many others. Many other properties are catered for including electrical isolators which also have thermal conductivity.
Electrical Isolation materials available from Materials Direct have excellent dielectric breakdown performance enabling the management of high voltages within your electronics. Some Isolation materials have additional properties of EMI and thermal protection.
Material Specifications
At Materials Direct we offer materials, you’ll find a range of materials that protect against high voltage, high temperatures and moisture. We also offer a range of materials that are thermally conductive.
High Temperature
Materials That Withstand and Manage High Temperatures
Chemical Resistant
Protect Your Electronics From Chemicals
Moisture Resistant
Protect Your Electronic Assemblies From Moisture & Liquids
Flexible
Materials Can Be Flexed to Your Desired Shape
Lightweight
Lightweight Materials That Will Not Strain on Your Electronics
High Voltage
Protect Electronic Components against High Voltages
Rigid
Rigid Materials that Will Maintain Their Shape and Structure
Thermally Conductive
Conduct Heat Away From Your Electronic Components
Quality Assured
We Provide Electrical Insulation Materials from Trusted Brands
Electrical Isolation comes in many forms and at Materials Direct, we cater for the conversion of sheet materials into cut parts available as custom pads, gaskets, and standard shapes to suit particular components such as TO220 and TO247 power semiconductors, from a large variety of materials from trusted brands.
'Having the ability to be supplied with precision cut materials for prototypes within 2 days has been excellent!’
Engineer, Rolls Royce
'We have the need for small to medium batch sizes of various technical materials and Materials Direct have been highly responsive to our urgent needs'
Buyer, Eaton Aerospace
‘We have had to change our designs in the development stages three times. Materials Direct did not charge for these changes as the sizes stayed the same. Excellent!’
Design Engineer, Philips
‘Precision and high quality of parts received have been consistently to a high standard.’
Quality Manager, GEC
Buying online with Materials Direct has proven to be more efficient in time and deliveries, especially when scheduling future orders.
Buyer, Selectronic
Very fast reply, very good order following and delivery in 24H. to recap a very good experience with Materials Direct for a very urgent need. I recommend a lot.
Marien Chevennement
Our Partners
Frequently Asked Questions
Sectors
Each sector has its own unique requirements and specifications. Materials Direct works to ensure that each sector we supply to, receives the highest quality and best-performing products in relation to their industry and specific need.
Aerospace
The Aerospace industry demands the highest performing, most reliable technical materials to protect their electronic assemblies.
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Automotive / EV
Automotive applications range from Engine management systems to motor drive controllers and custom-made gaskets and pads.
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Industrial
Industrial electronics are robust, have long lifetimes, are cost-sensitive, and suitable for use within difficult environments.
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LED Lighting
Sufficient thermal management in LED lighting can preserve longevity, increase reliability and optimise performance.
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Military
Materials used in military applications need to be of the highest quality and performance, often very rugged to very exacting standards.
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Power
Coupling discreet heat-generating semiconductors to heatsinks remains commonplace in power supply assemblies.
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