FR4SheetNatural
FR4 - 0.250" 48 x 48 Natural Sheet
0.25 in × 48 in × 48 in Sheet
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About This Product
This FR4 Glass Epoxy sheet in a 0.25" thickness and 48.0" x 48.0" sheet format delivers a strong balance of electrical insulation, mechanical strength, and dimensional stability for demanding industrial and fabrication applications. In a Natural color, this rigid FR4 sheet is especially well suited for structural panels, fixtures, and electrical components where moisture resistance, dependable machinability, and added stiffness from the quarter-inch profile are essential.
Specifications
Shape
Sheet
Thickness
0.25 inWidth
48 inStarting at
$300.29
per Each
In Stock
21010 availableAvailable at 11 locations
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
Typical Properties — FR4 - 0.250" 48 x 48 Natural Sheet
Glass Epoxy Fr4Mechanical
PropertyTest MethodUnitValue
Tensile strengthpsi / MPa65,000 / 445
Compressive strengthpsi / MPa38,000 / 260
Flexural strength (LW -A 0.125″)psi / MPa60,000 / 410
Bond strengthpsi / MPa2,300 / 15
Shear strengthpsi / MPa21,500 / 145
Hardness (M scale)115
Izod impact strength at 49°C (LW)14.00
General
DescriptionValue
Specific gravity1.85
Flammability rating94V-0
Water absorption (24 hours)0.10
Operating Environment
PropertyTest MethodUnitValue
Maximum temperature°C / °F140 / 280
Typical properties are provided for reference only. Values may vary based on processing conditions, form factor, and lot. Contact Ready Plastics for certified test data.