Vespel® CP-0664

DuPont™ Vespel® CP parts offer an array of fiber or fabric reinforced composites for a range of unique design needs when wear and strength are key. Composite parts can be found as replacements for aluminum or titanium in tube clamps. Wear strips are “self-lubricating”. Typically CP parts are used in aircraft bushings, wear pads, washers, bumpers and seals.

Low-friction, low-wear fabric-reinforced composites that are “self-lubricating” under high loads.

Applications

Jet engine designs utilize v-grooves to create air seals between the engine fan case and nacelle. V-grooves need to be durable to withstand corrosion and multiple impacts over the life of the engine.
Turbofan jet engine designs utilize single-stage fan blades to introduce air mass flow into compressors. Fan blade materials of construction have evolved over time, from metallic to composites to hybrids. Regardless of the material of construction, one of the biggest challenges is to consistently seat the fan blade root in a predictable and controlled manner

Special Warnings

Balance of a fan blade is an extremely important condition at startup as well as in operation. Due to the high rotational speeds and the mass of materials, any unbalance could seriously impact operation.
Coatings have to hold up to repeated impacts to avoid damage to primary metal.
Components must be easily maintained in the field to maximize service time.
Controlled and predictable fan blade root “seating” at start-up is critical to performance
Fan blade root coatings must hold up to repeated high load impacts to avoid excessive damage and wear to root and mating surfaces
Fan blade roots may be treated to prevent galvanic and crevice corrosion from occurring at the interface of dissimilar materials.
Large components such as fan blades are susceptible to damage during assembly.
Legacy coating systems may not always be easily maintained in the field, thus negatively impacting repair times as well as cost.
Major seal components are typically coated aluminum.
V-grooves must be treated to prevent corrosion from exposure to weather and operational environments.

Solutions

Both 2D and 3D geometries for bonding to critical surfaces.
Both 2D and 3D geometries for bonding to critical surfaces.
Controlled, predictable, and consistent friction performance during blade root seating.
Precisely locate and optimize contact surfaces.
Preventing corrosion and damage during assembly.
Preventing corrosion and damage during assembly.
Variety of aerospace applications.
Variety of aerospace applications.

Features & benefits

Corrosion resistance	CP-0664 has unique composite construction that creates an insulating barrier between dissimilar mating metal surfaces.
Solving a variety of problems	CP-0664 has been used to solve a variety of problems. From v-grooves, fan blade roots, and door/cowl guides to track liners on thrust reversers. The versatility and durability allows you to think out of the box to solve wear and coating problems that are leading to costly repairs on major components.
Design flexibility	Material can be molded to match unique geometry of most complex designs. Parts can be easily bonded at initial assembly or in the field.
Shear strength/Impact resistance/ Durability	CP-0664 was subjected to 70 impacts with a dynamic load of over 150 lbf with no visible damage to material or mating components and at performing loads exceeding 30 ksi.
Wear resistance	CP-0664 has seen extensive use in jet engine fans and nacelles and proven itself with years of service. Wear testing has been conducted over a variety of test conditions and proven to survive from 7500 to over 250,000 cycles. A transfer film is created on the mating metal surface which minimizes the wear on both the metal and composite surfaces.
Low friction	PTFE fibers enhance friction performance, dropping the dynamic coefficient of friction below 0.15. Higher loads only improve frictional behavior.
Protects expensive components from wear, helps extend life	Many coatings are brittle, and can be easily damaged in use, or experience corrosion with exposure to normal environmental conditions. CP-0664 has demonstrated ability to protect larger engine components as well as fan blade roots from damage that can lead to costly repairs and removal of engines from service.

Available Sizes

Gross Weight	Net Weight	Carton Each	Carton Length	Carton Weight	Carton Height
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Thermal Property

Property	Value	Unit	Method
TEST CONDITION – TDS-M202P (ULVAC)	—	—	250(482) 10˚,10˚ 1.0(0.0022) 10-5/1.45 x 10-8
DEFLECTION	—	—	330 /44 x 106 230(446)

Mechanical Property

Property	Value	Unit	Method
DENSITY	—	—	1.70 106
FINGER THICKNESS	—	—	3 0.12
TEST CONDITION – ASTM E595-93	—	—	0.329 0.002
FLEXURAL MODULUS	—	—	300 44 x 106
FINGER WEIGHT	—	—	0.50 1.10

Product Details

Fabric/material	ASB-0664 PARTS
Design	WEAR STRIP
Seam	PHENOLIC (WEAR STRIP)
Packaging	WEAR STRIP, NO METAL
Hazard
Coated Material	PLYOPHENS 2390
Features	SINGLE FABRIC PLY

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