Discover SRBP Gaskets
Discover SRBP Gaskets
Discover SRBP Gaskets: ASG are one of the UK’s largest gasket manufacturers, offering parts cut from a wide selection of sealing and gasketing materials, sourced from a broad network of suppliers, some of which are needed for specialist applications. One such range of products on offer from our vast catalogue are various types of electrical insulating materials with one type being Synthetic Resin Bonded Paper Electrical Insulation, sometimes also called SRBP Paper, SRBP Board or Phenolic Paper Laminate.
SRBP is usually manufactured in sheet form usually at 1220mm x 1220mm and in a range of thicknesses from 0.5mm to 20mm from which gaskets can be cut or pressed. For the gasket to work effectively and not fail, the quality of the cut and finish is just as important as the material used, therefore we ensure our in-house manufacturing team follow our customers drawings or samples to create an exact match - whether it’s a simple square picture frame gasket or a more complex shape with intricate cut-outs - we can offer a solution. From a one off sample to multi-thousand runs, we have a machine to quickly and accurately produce perfectly formed gaskets in a range of sizes, these include a number of presses and CNC machines.
What are SRBP Gaskets?
Synthetic Resin Bonded Paper or SRBP is a brown coloured composite material made of compressed layers of paper which is impregnated with a plasticized phenol-formaldehyde resin and bonded under pressure and high temperature, designed for it’s electrical insulation properties ideal for gasket conversion. SRBP gaskets are used for sealing and insulating in many industries, they can be taken in the form of a strip or pad, but are generally an intricately cut shaped piece of material placed within electrical applications. Electrical insulation gaskets like those made from SRBP are used to restrict the flow of electric current, by supporting electrical conductors - without allowing the current to pass through.
Why use SRBP Gaskets?
Electrical insulation gaskets such as those converted using SRBP provide a barrier to restrict the flow of electrical current, protecting electrical conductors from coming into contact with people or tools during installation, repairs or when an electrical appliance or device is being used.
Electrical insulation gaskets also prevent electrical arcing (electrical current flows through the air between two conductors, as a result of the electrical breakdown of gas that produces an ongoing electrical discharge) and are used in other electrical insulation applications.
Although paper types of insulating material don’t usually offer the mechanical characteristics or strength of those made using fabric, they offer superior electrical insulation properties, making them better suited to medium or high voltage applications, even in applications where there is exposure to humidity and oil. Because of the rigidity of SRBP, we can convert the sheets using the same processes used for plastics such as routing, drilling, milling and sawing, in order to produce parts such as gaskets.
The Benefits of Using SRBP Electrical Insulation
- Excellent electrical properties even when submerged in oil.
- Easy to machine
- Low moisture absorption even in humid conditions
- Operating Temperature of 105°C continuous (+120°C intermittent)
- High thermal resistance.
Grades of SRBP Electrical Insulation
Low Voltage
- Meets BS EN60893, standard 3-4 PFCP201
- Temperature: Up to +100°C continuous
- More economical grade
- Used in Low voltage applications
Medium Voltage
- Meets BS EN60893, standard 3-4 PFCP203
- Temperature: Up to +105°C continuous
- Better oil absorption than the high voltage grade
- Low water absorption
- Used in Medium voltage applications
High Voltage
- Meets BS EN 60893 Standard: 3-4-PFCP206
- Temperature: Up to +105°C continuous
- Good electrical properties both in air and oil.
- Low moisture absorption.
- High thermal resistance
- Used in High voltage application
Advantages of Using SRBP Gaskets
Using SRBP for the production of gaskets brings a number of advantages, it is manufactured in a wide range of thicknesses and is available in 3 grades for use with varying levels of electrical voltage. As well as the excellent electrical insulation properties, SRBP gaskets offer good mechanical strength, low moisture absorption, with the material itself being easy to cut and form into complex shapes and profiles using a range of techniques including routing, drilling, milling and sawing to create gaskets which can be found utilised in electrical components, electrical switchgear, lighting, transformers and within many engineering applications.
Product Enquiry
For information on Discover SRBP Gaskets please complete the following quick enquiry or call us on +44(0)1384 252555.
Key Characteristics of SRBP
- Colour: Brown
- Sheet Size: 1220mm x 1220mm
- Thicknesses available: 0.5mm to 20mm
- Temperature: Up to +105°C continuous
- Standards:
BS EN60893, standard 3-4 PFCP201
BS EN60893, standard 3-4 PFCP203
BS EN 60893 Standard: 3-4-PFCP206
Full technical data can be supplied upon request,
or downloaded from our online portal.
Please contact us using the form below or by calling us on +44(0)1384 252555.