Fr4 Parts For Electronic Switch Molds

2 month ago

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SHENZHEN XIONGYIHUA PLASTIC INSULATION LTD

9 year

Product details

Ingredients

Base material: Glass fiber cloth (electronic grade) is used as a reinforcing material to provide mechanical strength and structural stability.

Resin system: A combination of epoxy resin and hardener is used. Some formulas contain brominated epoxy resin to achieve flame retardant properties.

Additional components: Some products add fillers (such as inorganic substances) to optimize dielectric properties or thermal stability

Performance characteristics

Mechanical properties:

High rigidity, tensile strength (up to 150MPa or more at room temperature) and compressive strength, suitable for the load-bearing requirements of precision molds.

Excellent low-temperature toughness (mechanical stability at -40°C), high temperature tolerance up to 130°C.

Electrical properties:

Stable dielectric constant (≤5.5 @1MHz), low dielectric loss (≤0.04), dry/wet insulation resistance are higher than industry standards.

Flame retardancy: UL94V0 certified, self-extinguishing time after burning ≤10 seconds, meeting electronic equipment safety regulations.

Processing adaptability:

Supports precision processing such as CNC and laser cutting, edge flatness error ≤0.05mm.

Low water absorption (≤19mg under D-24/23 standard), dimensional stability is better than ordinary engineering plastics

Core selling point of the product

Multi-scenario applicability:

Optional colors (yellow/white/black/aqua), smooth surface without pits, meeting the needs of appearance customization.

High cost performance:

The cost of raw materials is 30%-50% lower than that of metal substrates, and the processing loss rate is ≤3%.

Environmental compliance:

Compliant with the RoHS directive, halogen-free formula reduces the risk of environmental pollution.

Application areas

Electronic switch molds:

As insulating support bars and contact fixing plates, they can solve the problem of high-voltage arc breakdown.

Precision structural parts:

Used for wafer grinding gears and test fixtures, replacing traditional metal parts to reduce weight.

Extended scenarios:

High-frequency communication equipment (such as 5G base station RF module insulation pads).

New energy vehicle electronic control systems (battery pack insulation isolation plates, charging pile components)

Property	Bakelite sheet	FR4 sheet
Base Material	Phenolic resin + wood pulp/cotton fabric	Epoxy resin + glass fiber
Cost	Lower	Higher
Temperature Resistance	100-130°C	130-180°C (higher for epoxy board)
Electrical Performance	Medium/Low Voltage Insulation	High-Frequency/High Voltage Insulation (superior)
Typical Applications	Mechanical parts, medium/low voltage electrical devices	PCB substrates, high-end insulating components

Comparison Table: 3240 Epoxy Glass Sheet vs. FR4 Sheet
Characteristics	3240 Epoxy Glass Sheet	FR4 Sheet
Main Applications	Structural insulation parts, mechanical support	Printed circuit board (PCB) substrate
Key Processing Techniques	Mechanical processing (cutting, drilling)	PCB processes (etching, copper plating, etc.)
Key Performance Focus	Mechanical strength, insulation	High-frequency signal transmission, dielectric stability
Typical Thickness	0.5mm–50mm (thicker)	0.2mm–3.2mm (thinner)

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SHENZHEN XIONGYIHUA PLASTIC INSULATION LTD

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9 year

Main Product: POM SHEET, FR4 Sheet , Nylon Sheet, Bakelite Sheet, ABS Sheet , PTFE Sheet

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