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Composite Materials

Composite Materials


SHEERGARDTM M15-OS

M15-OS a SHEERGARDTM microwave transmissive composite designed specifically for use in RF applications. The composite is made of fiberglass fibers and a polytetrafluoroethylene (PTFE) matrix. The “M” group incorporates a flat, plain weave in the structural substrate. M15-OS is a one-sided coated product used specifically for pre-tensioned planar radomes and antenna covers, within the temperature range of -100°F to +300°F.

Data Sheets: Imperial / SI


SHEERGARDTM M26

M26 is a SHEERGARDTM microwave transmissive composite designed specifically for use in RF applications. The composite is made of fiberglass fibers and a polytetrafluoroethylene (PTFE) matrix. The “M” group incorporates a flat, plain weave in the structural substrate. M26 is available in 158 inches, making it a popular choice for one-piece planar radomes

Data Sheets: Imperial / SI


SHEERGARDTM M26-OS

M26-OS is a SHEERGARD microwave transmissive composite designed specifically for use in RF applications. The composite is made of fiberglass fibers and a polytetrafluoroethylene (PTFE) matrix. The “M” group incorporates a flat, plain weave in the structural substrate. M26-OS is a one-sided coated product used specifically for pre-tensioned planar radomes and antenna covers, within the temperature range of -100°F to +300°F.

Data Sheets: Imperial


SHEERGARDTM SX-12

SX-12 is a SHEERGARDTM material with a 3 layer construction and 2 barrier films designed for use in RF applications. The composite is made high strength aramid fibers (Kevlar®) and a polytetrafluoroethylene (PTFE) matrix. These combine to give a lightweight, highly flexible and tear resistant weave, which is fully protected by its chemically impermeable outer layers. SX-12 exhibits very low dielectric constants and loss tangents as well as excellent hydrophobic properties.

Data Sheets: Imperial / SI


SHEERGARDTM K40

K40 is a SHEERGARDTM microwave transmissive composite designed specifically for use in RF applications. The composite is made high strength aramid fibers (Kevlar®) and a polytetrafluoroethylene (PTFE) matrix. The “K” group incorporates aramid yarns in a 2x2 basket weave for enhanced flexural characteristics and high tear strength.

Data Sheets: Imperial


SHEERGARDTM K60

K60 is a SHEERGARDTM microwave transmissive composite designed specifically for use in RF applications. The composite is made high strength aramid fibers (Kevlar®) and a polytetrafluoroethylene (PTFE) matrix. The “K” group incorporates aramid yarns in a 2x2 basket weave for enhanced flexural characteristics and high tear strength

Data Sheets: Imperial / SI


SHEERGARDTM Q65

Q65 is a SHEERGARDTM microwave transmissive composite designed specifically for use in RF applications. Its quadri-axial, multi-ply, laminated construction provides superior dimensional stability even in the most extreme environments.

Data Sheets: Imperial / SI

The SHEERGARDTM family of microwave transmissive PTFE (polytetrafluoroethylene) TeflonTM composites combines PTFE with specially woven structural fabrics that utilize fiberglass, aramid (Kevlar®) and similar high strength, high temperature resistant yarns. Our composite fabrics are supplied as precut pieces sized to the customer’s needs. These materials can also be supplied with any required mounting holes.

Complete Vertical Integration

SHEERGARD incorporates vertical integration of all elements in the composite manufacturing process including yarn twisting
and weaving, polymer coating, casting and lamination.

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Unsurpassed RF Performance

The primary function of a radome is to protect the enclosed antenna system while having minimal effect on the transmission of the electromagnetic signal.

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Extreme Environmental Protection

SHEERGARD PTFE coated fabrics have been analyzed and tested for structural application to all environmental conditions.

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Proven Reliability

The materials used for radome fabrication are composites consisting of a woven substrate fabric protected with applied coatings, providing tensile strength and tear resistance.

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