Ready Plastics
FR4SheetBlack

FR4 - 0.406" 36 x 48 Black Sheet - 0.406 in × 36 in × 48 in Sheet

0.406 in × 36 in × 48 in Sheet

FR4 - 0.406" 36 x 48 Black Sheet
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This FR4 sheet measures 0.406″ thick, 36″ × 48″, finished in black. Available to order — price $417.79 per Each.

SpecificationValueTolerance
Shape / FormSheet
Thickness0.406Standard
Width36Standard
Length48Standard
ColorBlack
Weight46.889 lbs
About This Product

This Black FR4 Glass Epoxy sheet in 0.406" thickness and 36.0" x 48.0" dimensions delivers a strong balance of electrical insulation, moisture resistance, and dependable mechanical stability for demanding industrial and electrical applications. With its thicker profile, this FR4 sheet offers added rigidity and durable performance, making it a smart choice for structural panels, fixtures, and fabricated components that require both strength and dimensional consistency.

Specifications

Shape

Sheet

Thickness

0.406 in

Width

36 in

Length

48 in

Weight

46.889 lbs

Color

Black

Unit of Measure

Each

Other FR4 sizes

← All FR4stock & specs

Price

$417.79 / Each

In Stock
21010 available
Available at 11 locations
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
CategoryFR4
FormSheet
Thickness0.406 in
Width36 in
Length48 in
Weight46.889 lbs

Typical Properties — FR4 - 0.406" 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.