USA Sealing G-10 FR4 Garolite Sheet GFR4-46 12″ x 12″ x 0.5″ Yellow

Description

Product Overview

The USA Sealing G10 FR4 sheet is a high‑performance Garolite panel engineered for demanding industrial and scientific uses. Measuring 12 inches by 12 inches with a precise half‑inch thickness, this yellow‑colored sheet combines the strength of G‑10 composite material with the flame‑resistant properties of FR‑4. Its specifications include a tensile strength of 38,000 psi, an impact strength rating of excellent, and a Rockwell hardness of M110. The sheet meets UL 94 V0 standards, ensuring it resists ignition and flame spread. With a density of 0.072 lbs per cubic inch and a temperature tolerance up to 280 °F, the material remains stable under both mechanical load and thermal stress. Water absorption is exceptionally low at 0.0015, contributing to dimensional stability in humid environments. The product is supplied as a plain‑backed sheet, making it ready for machining, drilling, or bonding without additional preparation.

Usage

This Garolite sheet is ideally suited for a range of applications where rigidity, electrical insulation, and heat resistance are critical. In aerospace manufacturing, it serves as a structural component for brackets, panels, and interior fixtures that must endure vibration and temperature fluctuations. Electronics engineers rely on the material for printed circuit board (PCB) substrates, shielding enclosures, and connector housings because of its excellent dielectric properties and flame retardancy. Tooling and die‑making professionals use the sheet to fabricate molds, jigs, and fixtures that benefit from its high impact resistance and low wear characteristics. Additionally, the sheet’s chemical inertness makes it appropriate for laboratory equipment, medical device housings, and automotive interior parts where durability and safety are paramount.

Why Choose Us

Choosing the USA Sealing G10 FR4 sheet means selecting a product backed by rigorous quality control and a reputation for reliability. Each sheet is manufactured to tight dimensional tolerances (thickness tolerance of -0.028″ to +0.031″, width and length tolerances of ±0.25″) to guarantee consistent fit in precision assemblies. The material undergoes comprehensive testing for tensile strength, impact resistance, hardness, and flame retardancy, ensuring it meets or exceeds industry standards. Our supply chain management provides consistent availability, and the product is stocked in the United States, reducing lead times for domestic customers. Moreover, USA Sealing offers responsive technical support and after‑sales service, assisting engineers with material selection, machining recommendations, and compliance documentation.

Key Features

• High tensile strength of 38,000 psi provides reliable load‑bearing capacity.
• Excellent impact resistance reduces risk of cracking under sudden forces.
• UL 94 V0 flame‑retardant rating enhances safety in high‑heat environments.
• Low water absorption (0.0015) maintains dimensional stability in humid conditions.
• Dedicated technical support and fast domestic shipping ensure smooth project execution.

FAQ

What is the difference between G‑10 and FR‑4 in this sheet?

G‑10 refers to the glass‑reinforced epoxy laminate, while FR‑4 adds a flame‑retardant additive. The combined G‑10/FR‑4 formulation delivers both high mechanical strength and compliance with fire safety standards.

Can the sheet be machined with standard tools?

Yes, the plain‑backed Garolite can be drilled, milled, and cut using conventional carbide or high‑speed steel tools. Proper cooling and chip evacuation are recommended to preserve surface finish.

Is the material suitable for high‑frequency RF applications?

The sheet’s dielectric constant and loss tangent are consistent with typical FR‑4 substrates, making it appropriate for many RF and microwave circuits, provided the design accounts for its specific electrical parameters.

What certifications does the sheet hold?

It meets UL 94 V0 flame‑retardancy, and the mechanical properties are validated against industry‑standard test methods for tensile and impact performance.

How does the temperature rating affect performance?

The sheet remains stable up to 280 °F, allowing it to function in environments where elevated temperatures are encountered, such as near power electronics or in automotive under‑hood applications.