Ready Plastics
FR4SheetBlack

FR4 - 0.375" 36 x 48 Black Sheet - 0.375 in × 36 in × 48 in Sheet

0.375 in × 36 in × 48 in Sheet

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This FR4 sheet measures 0.375″ thick, 36″ × 48″, finished in black. In stock — price $501.47 per Each.

SpecificationValueTolerance
Shape / FormSheet
Thickness0.375Standard
Width36Standard
Length48Standard
ColorBlack
Weight43.309 lbs
About This Product

This Black FR4 Glass Epoxy sheet, sized 36.0" x 48.0" with a substantial 0.375" thickness, is built for demanding electrical and structural applications that require dependable strength and insulation. The thicker FR4 sheet delivers excellent rigidity, moisture resistance, and high dielectric performance, making it a smart choice for fixtures, panels, and machined components where stability and durability matter.

Specifications

Shape

Sheet

Thickness

0.375 in

Width

36 in

Length

48 in

Weight

43.309 lbs

Color

Black

Unit of Measure

Each

Other FR4 sizes

← All FR4stock & specs

Price

$501.47 / Each

In Stock
21010 available
Available at 11 locations
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
CategoryFR4
FormSheet
Thickness0.375 in
Width36 in
Length48 in
Weight43.309 lbs

Typical Properties — FR4 - 0.375" 36 x 48 Black Sheet

Glass Epoxy Fr4
Mechanical
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.