An Insight into Industrial Laminates

Industrial Laminates

Industrial Laminates

Ai Engineering Plastics and Laminates have distributed industrial laminates since 1980. Following our rebranding, we are continuing to invest in our stocks of both industrial laminates and engineering plastics.

Industrial laminates are different to engineering plastics as they are thermosets as opposed to thermoplastics. This means that during production they experience a chemical change and become set, hard solids that cannot be melted or remoulded once they have been cured, unlike thermoplastics which can be melted and remoulded repeatedly.

Industrial laminates are produced by combining thermosetting resins such as Phenolic and Epoxy with base materials such as paper, canvas, linen and glass. The base materials are impregnated with the resin and then pressed under heat and pressure.

We are able to process all of our laminates by cutting and sanding, which enables our customers to get their material with tighter tolerances than as manufactured with less subsequent machining.  

Laminates we sell include: SRBP P1 & P3 and SRBF F1 & F2 and Epoxy 4W/EP.

SRBP

SRBP

SRBP stands for Synthetic Resin Bonded Paper and is sold by us in two grades: P1 and P3, the difference between the two mainly being their electrical properties. SRBP P1 conforms to BSEN60893 3-4-PFCP201 whilst P3 conforms to BSEN60893 3-4-PFCP206.

Material Characteristics 

P1

P3

Low voltage insulation

High voltage insulation

Good machinability

Good machinability

Good economic cost

Low moisture absorption

 

Good mechanical strength

Typical Applications 

P1

P3

Electrical insulation components

Terminal boards

Spacers

Insulated enclosures

Base plates

Mounting panels

Side plates

Insulating sleeves and bushes

Simple jigs and fixtures

Insulating spacers

 

Busbar supports

 

Coil formers

SRBP P1 is equivalent to IP/13 and B4. (click here to buy P1)

SRBP P3 is equivalent to Tufnol Kite and B1. (click here to buy P3)

SRBF

SRBF

SRBF stands for Synthetic Resin Boded Fabric and is sold by us in two grades: F1 and F2, the difference between the two mainly being their mechanical strength. SRBF F1 conforms to BSEN60893 3-4-PFCC305 whilst SRBF F2 conforms to BSEN60893 3-4-PFCC203.

Material Characteristics

F1

F2

Excellent mechanical strength

Good mechanical strength

Very good wear resistance

Excellent wear resistance

Very good dimensional stability

Very good dimensional stability

Good machinability

Good machinability

High electrical properties

Good electrical and thermal insulation properties

Low water absorption

Excellent weather resistance

Typical Applications

F1

F2

Cams

Gears

Fine toothed gears

Washers

Geneva wheels

Bearings

Actuating arms

Jigs

Insulating sleeves and bushes

fixtures

Components for use at cryogenic temperatures

 

Insulation for low and medium voltages

 

SRBF is equivalent to Tufnol Carp and B10. (click here to buy F1

SRBF is equivalent to Tufnol Whale and B12. (click here to buy F2)

Epoxy 4W/EP

Epoxy

Epoxy 4W/EP is a general-purpose FR-4 epoxide resin laminate conforming to BSEN60893 3-2-EPGC202, based on a medium weave glass cloth. 

Material Characteristics

  • Very good electrical properties 
  • High strength
  • High rigidity
  • Low moisture absorption
  • Fire resistant (UL94 V-0)

Typical Applications

  • Terminal supports
  • Switchgears
  • Transformers
  • Rotor slot wedges
  • FRP plates
  • Bus bars
  • Electronic test equipment 

Click here to buy Epoxy.

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