Ready Plastics
FR4SheetNatural

FR4 - 0.375" 36 x 48 Natural 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 natural. Available to order — price $439.01 per Each.

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

This FR4 Glass Epoxy sheet in Natural color measures 0.375" thick and 36.0" x 48.0", making it a dependable choice for electrical, structural, and fabrication applications that demand consistent performance. The 0.375" thickness adds excellent rigidity and dimensional stability, while FR4 delivers strong dielectric insulation, low moisture absorption, and reliable machinability for demanding industrial use.

Specifications

Shape

Sheet

Thickness

0.375 in

Width

36 in

Length

48 in

Weight

43.309 lbs

Color

Natural

Unit of Measure

Each

Other FR4 sizes

← All FR4stock & specs

Price

$439.01 / Each

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

Typical Properties — FR4 - 0.375" 36 x 48 Natural 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.