FR-4 flame retardant epoxy resin fiberglass laminate sheet material

product description

Description of FR4

FR-4 flame retardant epoxy fiberglass board is also called epoxy fiberglass cloth laminated board. It is plate-like laminated products formed by electronic grade fiberglass cloth impregnated with epoxy resin and fire retardant under hot pressing of high temperature and pressure with high mechanical property and dielectric property, good heat and moisture resistance, as well as strong mechanical processing property. The insulation class is F class, and the main color is white(original color), aqua, black and yellow.
FR-4 flame retardant epoxy fiberglass board

Application of FR4

It is suitable for insulating structural components of mechanical, electronic and electrical equipment with flame retardant requirements.

l Slot Wedges

l Terminal Boards and Tag Strips

l High-Voltage Switches

l Planetary Gears

l Machine parts

l Bolt Insulation

l FPC Reinforcing Sheets

l Electronic Insulation Fields

l PCB Drilling Pad

l Electromechanical Components

l Wiring Boards

l Power Distribution Cabinets

Thickness：0.3～100mm Specification：1020×1220mm;1020×2040mm;1220×2440mm

Advantage of FR4

FR-4 flame retardant epoxy fiberglass board, produced by ZTelec Group taking high-quality fiberglass cloth and epoxy resin as raw materials, can be mass-produced with advanced automatic production lines. This product has the advantages of reliable quality, uniform appearance and color and small thickness tolerance with strict manufacturing technology. The mechanical and electrical properties of products are superior to the similar one of other companies. Its quality is recognized by domestic and foreign large enterprises such as Lens Technology in China and Schneider Electric and sold overseas like European and American areas.

Property Parameter of FR4

Executive Standard: GB-T 1303-2009 - IEC60893-2004　

Number	Item	Unit	Value
1	Density	g/cm3	1.8-1.95
2	Water Absorption（Thickness:1-20mm）	mg	17-73
3	Flexural Strength at Perpendicular Lamination	MPa	≥340
4	Impact Strength at Parallel Lamination	KJ/m2	≥38
5	Dielectric Strength at Perpendicular Lamination（Transformer Oil at 90℃）（Thickness:1mm）	KV/mm	≥14.2
6	Breakdown Voltage at Parallel Lamination	KV	≥35
7	Dielectric Constant（50Hz）	-	≤5.5
8	Dielectric Loss Factor（50Hz）	-	≤0.04
9	Insulation Resistance after Immersion	Ω	≥5.0×1010
10	Flammability	-	V-0
11	Thermal Index	-	130

General Properties


Property	Unit of measure	Typical Value
Density	gc/m³	1.98-2.08
Water Absorption (5mm)	%	≤0.15
Flame Retardant	UL94	V0

Electrical Properties


Property	Unit of measure	Typical Value
Electrical Strength ⊥	kV/mm， thickness<3mm	≥10.2
Electrical Strength ∥	kV	≥35
Tracking Resistance	PTI	≥200

Mechanical Properties


Property	Unit of measure	Typical Value
Benging Strength	MPa	≥400
Tensile Strength	MPa	≥300
Compressive Strength ⊥	MPa	≥350
Modulus Of Elastricity	MPa	≥24000
Impact Strength ∥	kJ/m²	≥33

Thermal Properties


Property	Unit of measure	Typical Value
Thermal Charactersitices	℃	130

Notes

Disclaimer: The above values are based upon routine test data and do not form the basis of a supply contract. These

products may be used in a diverse range of applications and whilst every effort is made to ensure the information in this

data sheet is accurate, it must be stressed that it is the user's responsibility to ensure suitability for the intended end use.

Stroage: Wrapped with packaging film and packed in pallet; horizontally placeed in dry and clean room at room temperature; keep it away from moisture and fire. The storage period is 12 months.

Of course, we also have more types of electrical laminates for you to choose from.