FR4SheetNatural
FR4 - 4.000" 36 x 48 Natural Sheet
4 in × 36 in × 48 in Sheet
Same-day shipping available
Quality certified
Expert support
About This Product
This FR4 Glass Epoxy sheet in a substantial 4.0" thickness and 36.0" x 48.0" size delivers outstanding structural stability for heavy-duty electrical, mechanical, and fabrication applications. Finished in Natural color, this sheet combines the trusted insulating performance, moisture resistance, and dimensional reliability of FR4 with the added rigidity needed for demanding builds and precision-machined components.
Specifications
Shape
Sheet
Thickness
4 inWidth
36 inPrice
$4753.73 / Each
In Stock
21010 availableAvailable at 11 locations
Ships same day if ordered by 2pm
Quality guaranteed
Quick Info
Typical Properties — FR4 - 4.000" 36 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.