USA Sealing G-10/FR-4 Sheet – Bulk CS GFR4-44, Yellow 12″ x 12″ x ¼”

Description

Product Overview

The USA Sealing G10/FR4 Garolite sheet is engineered for high‑performance applications where strength, durability, and fire resistance are critical. Measuring 12 inches by 12 inches with a precise 1/4 inch thickness, this yellow‑colored laminate combines the toughness of G‑10 fiberglass with the electrical insulation properties of FR‑4. The sheet meets UL 94 V0 flame‑retardant standards, offering a reliable safety margin for aerospace, automotive, and industrial tooling environments.

Manufactured by USA Sealing Inc., the sheet features a standard grade Garolite material with a rock‑well hardness of M110, a density of 0.072 lbs/cu in, and a temperature tolerance up to 280 °F. Its tensile strength of 38,000 psi and impact strength rating of 14 ft‑lb/in provide confidence in high‑stress scenarios, while the water absorption rate of just 0.0015 ensures dimensional stability even in humid conditions.

Usage

Designed for engineers, fabricators, and designers, this sheet excels in applications such as aircraft interior panels, circuit board substrates, and custom tooling inserts. Its excellent impact resistance makes it suitable for protective enclosures, while the high dielectric strength supports high‑voltage insulation tasks. The sheet’s flat, plain backing allows for easy bonding with adhesives, laminates, or mechanical fasteners, facilitating rapid prototyping and production runs.

Because of its low water absorption and stable dimensional properties, the sheet performs reliably in marine and outdoor settings where moisture exposure is a concern. The opaque yellow color provides visual contrast during machining, helping operators identify cut lines and avoid errors. Whether you are building a drone frame, a high‑frequency antenna mount, or a precision jig, this Garolite sheet delivers the performance you need.

Why Choose Us

USA Sealing stands for quality and consistency. Each sheet undergoes rigorous testing to verify thickness tolerance (‑0.01″ to +0.01″), width and length tolerances (‑0.25″ to +0.25″), and mechanical properties. Our commitment to UL certification means you receive a product that complies with industry fire‑safety standards without additional processing.

We provide responsive technical support and a straightforward return policy, ensuring that any concerns are addressed promptly. Our inventory management guarantees that the sheet is readily available for immediate shipment, reducing lead times for time‑critical projects. When you purchase from USA Sealing, you benefit from a trusted brand with a track record of serving aerospace, defense, and high‑tech manufacturing sectors.

Key Features

• High tensile strength (38,000 psi) for demanding structural applications
• Excellent impact resistance (14 ft‑lb/in) reduces risk of cracking under load
• UL 94 V0 flame‑retardant rating ensures compliance with safety regulations
• Low water absorption (0.0015) maintains dimensional stability in humid environments
• Dedicated customer support and easy returns for peace of mind

FAQ

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

G‑10 refers to the fiberglass‑reinforced epoxy resin core, providing superior mechanical strength, while FR‑4 denotes the flame‑retardant epoxy coating that offers excellent electrical insulation. This sheet combines both, delivering a balanced blend of strength and dielectric performance.

Can the sheet be machined with standard tools?

Yes, the sheet can be cut, drilled, and milled using conventional carbide or high‑speed steel tools. For best results, use coolant to reduce heat buildup and maintain surface finish quality.

Is the sheet suitable for high‑temperature applications?

The material is rated up to 280 °F, making it appropriate for many aerospace and automotive environments. For temperatures exceeding this range, consider a specialized high‑temperature laminate.

How does the yellow color affect performance?

The yellow pigment is purely visual and does not impact mechanical or electrical properties. It aids in visual identification during fabrication, helping reduce errors and improve workflow efficiency.

What certifications does this product hold?

In addition to UL 94 V0 flame‑retardant certification, the sheet complies with industry standards for dimensional tolerance, tensile strength, and impact resistance, ensuring reliable performance across a wide range of applications.