Bakelite sheet, also known as Bakelite board, Norplex board, Micarta board, phenolic board, Phenolic board, laminated board, and SRBF (Synthetic Resin Bonded Fabric), is a dense material. It is made by applying heat and pressure to layers of cellulose paper or fabric impregnated with synthetic resin (phenolic resin). During the application of heat and pressure, a polymerization reaction converts the layers into a thermosetting industrial laminate board. Phenolic laminate boards have extremely high durability, not only for electrical performance but also for heat and chemical resistance. Therefore, they are particularly suitable for emerging electrical and automotive industries.
Bakelite Sheet, Bakelite Board
130℃
B
Phenolic Resin + Cellulose paper
Orange, Black
3.0~100mm
1.35~1.5g/cm³
1020x2010mm,1020x2040mm,1220x2440mm or customized.
Excellent dielectric strength
Good machinability
Light weight
Heat and wear resistant
Resists corrosion and chemicals
Good mechanical strength & dimensional stability
Low moisture absorption
Chemical resistant: Resists acids, solvents, and corrosion.
Arc Resistance: Inherently resists electrical tracking.
Economical: Long service life reduces replacement frequency.
Beyond classic radios and telephones, Bakelite sheets are also found in:
● Automotive: Distributor rotors, brake pads, ignition components.
● Industrial: Conveyor skid plates, press brake blocks, insulator spacers.
● Electronics: High-voltage transformer insulation, fuse blocks, commutator V-rings.
● Consumer Goods: Appliance handles, kitchenware, and even durable guitar picks.
● Specialized Uses: Radiation shielding, lab equipment, and forensic work surfaces.
| Bakelite Sheets | ||
|---|---|---|
| Physical Properties | Unit | Value |
| Color | Orange、Black | |
| Density | g/cm3 | 1.35-1.50 |
| Flammability | UL94 | HB |
| Water Absorption(5mm) | % | ≤2 |
| Chemical Family | Resin | Phenolic |
| Reinforcement Type | Paper | Kraft |
| Thermal Charactersitices | ℃ | 130(B) |
| Mechanical Properties | Unit | Value |
| FLEXURAL STRENGTH (23°C±2)⊥ | MPa | ≥ 120 |
| FLEXURAL MODULUS ⊥ | MPa | ≥ 7000 |
| TENSILE STRENGTH(LENGTHWISE) | MPa | ≥ 100 |
| Compressive Strength ⊥ | MPa | ≥ 150 |
| BONDING STRENGTH | N | ≥ 3000 |
| Electrical properties | Unit | Value |
| Electrical Strength ⊥ | Kv | ≥10 |
| INSULATION RESISTANCE | Ω | ≥5.0×10^7 |
| ARC RESISTANCE | Pti | ≥100 |
Yes, based on drawings or samples.
UL, RoHS, REACH, CE, ISO, etc.
Usually 100 kg or 100 sheets, negotiable.
Yes, common samples free, buyer pays freight.
2-4 weeks after payment.
Yes, including labeling and packaging.
Yes, over 20 years.
T/T 30% deposit, 70% before shipment. Negotiable if supports needed.
Yes, we offer CNC machining.
Manufacturer and Exporter
No.3, Mianzhi Street, Zhucheng, Shandong, China
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