Sam Associates

In today's G11 laminate sheet is made up with a hight temperature epoxy making up the bulk of heavy sheet and then using finer glass cloth with high temperature resistant epoxy giving a high performance outer finish.
Today what is called FR5 is the Brominated flame retardant version of G 11. The FR 5 material can usually be used where G11 material is specified, however G11 Laminate should not be used where FR-5 is specified.
Another variation of G11 fiberglass sheet is G11 CR laminate used in cryogenic applications.

Both G-11 and FR-5 are rated at 300 degree F continuous operating temperature.G11 has a low dielectric loss and has a retention of 50% of mechanical properties at 300 degrees or 150 C. Because of these characteristics, this material should be used in applications where temperatures in excess of 125 degrees C are encountered. Because they are thermosets, no melting will occur with these grades, however charring will be observed after extended periods above this temperature rating. FR-5 has a UL flammability rating of 94 V-0.

G-11 Tube is stocked at Polymer Plastics in limited quantities, but is usually made to order. This process is made using the same epoxy saturated glass cloth as the sheet is made, but wound over mandrels and cured and the OD ground to size.

G-11 Rod is commonly turned, and ground from sheet stock. You can special order Mil Spec grade rolled and molded rod on a custom order basis.

With these outstanding characteristics, it is easy to understand why G-11 and FR-5 materials are such versatile materials and is used in a wide variety of applications.

PFCC 202 Phenolic Cotton Cloth Sheet, also known as phenolic laminate or fabric-based phenolic, is a type of composite material made by impregnating layers of woven fabric (usually cotton or linen) with a phenolic resin and then curing under heat and pressure. The resulting material is strong, durable, and versatile, making it suitable for various applications.

Key features of fabric phenolic sheets:

1. Strength and Durability: Fabric phenolic sheets have excellent mechanical strength, making them resistant to impact, wear, and abrasion.

2. Thermal Resistance: They can withstand high temperatures without significant deformation, making them suitable for applications in high-temperature environments.

3. Electrical Insulation: Fabric phenolic sheets exhibit good electrical insulating properties, making them valuable in electrical and electronic applications where insulation is crucial.

4. Chemical Resistance: Phenolic resin provides resistance to many chemicals, enhancing the material's durability and making it suitable for use in corrosive environments.

5. Machinability: Fabric phenolic sheets can be easily machined and shaped, allowing for flexibility in design and fabrication.

MIL-I-24768/16 Phenolic Cotton Cloth Sheet, also known as phenolic laminate or fabric-based phenolic, is a type of composite material made by impregnating layers of woven fabric (usually cotton or linen) with a phenolic resin and then curing under heat and pressure. The resulting material is strong, durable, and versatile, making it suitable for various applications.

MIL-I-24768/12 Phenolic Cotton Cloth Sheet are a type of industrial laminate made by impregnating layers of paper with phenolic resin and then compressing and heating the material. The result is a hard, dense, and durable sheet material with a wide range of applications due to its excellent mechanical, electrical, and thermal properties.

MIL-I-24768/14 Phenolic Cotton Cloth Sheet, also known as phenolic laminate or fabric-based phenolic, is a type of composite material made by impregnating layers of woven fabric (usually cotton or linen) with a phenolic resin and then curing under heat and pressure. The resulting material is strong, durable, and versatile, making it suitable for various applications.

Nema C Phenolic Sheet, also known as phenolic laminate or fabric-based phenolic, is a type of composite material made by impregnating layers of woven fabric (usually cotton or linen) with a phenolic resin and then curing under heat and pressure. The resulting material is strong, durable, and versatile, making it suitable for various applications.