VTEC™ BG21

Identification & Functionality

Chemical Family

Polyimides (PI)

Polymer Name

Polyimide (PI)

Technologies

Plastics

Product Families

Plastics — Parts, Shapes & Films

Features & Benefits

Materials Features

Abrasion Resistant,

Chemical Resistant,

Creep Resistant,

Dimensional Stability,

Good Compressive Strength,

Good Electrical Properties,

Good Mechanical Properties,

High Temperature Resistance,

Low Friction,

Low Moisture Absorption,

Self Lubricating,

Wear Resistant

Features

• Excellent chemical resistance
• Outstanding electrical properties
• Non-abrasive to mating parts
• Radiation resistant
• Very low outgassing
• Extremely dimensionally stable

• Strength at elevated temperature
• High compressive strength and creep resistance
• Superior resistance to plasma etching
• Wear resistance, low friction, self-lubricating
• Extremely low moisture absorption
• Compliant without deforming under load and temperature
• Zero metal and mineral extractables
• Equal CTE in X, Y and Z directions

 

Applications & Uses

Markets

Agriculture & Feed,

Automotive & Transportation,

Building & Construction,

Consumer Goods,

Electrical & Electronics,

Healthcare & Pharma,

Industrial,

Printing & Packaging

Applications

Agriculture & Feed — Agricultural Films

Pipes & Hoses

Consumer Goods — Appliances & Electronics

Automotive & Transportation — Automotive

Cooling & Climate,

Fuel Systems,

Other Automotive Applications,

Powertrain & UTH

Building & Construction — Building Materials

Pipes & Plumbing,

Structural Components

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts,

Other Industrial Applications

Electrical & Electronics — Devices & Assemblies

Other Devices & Assemblies

Industrial — Leather & Textiles

Textile Manufacturing

Healthcare & Pharma — Medical

Implants & Prosthetics,

Surgical Instruments & Trays,

Tubing & Fluids Handling

Industrial — Other Industrial Applications

Printing & Packaging — Packaging

Healthcare Packaging

Electrical & Electronics — Parts & Components

Housings & Enclosures,

Other Parts & Components,

Printed Circuit Boards (PCBs)

Automotive & Transportation — Transportation

Aerospace & Aviation

Plastics & Elastomers End Uses

Aircraft Interiors,

Bearings,

Bobbins,

Body Implants,

Bushings,

Caps,

Electric Motor Housings,

Electric Motors,

Piston Rings,

Printed Circuit Boards,

Pumps,

Thrust Washer,

Trays,

Tubes,

Valve Parts,

Washer,

Wear Strip

Availabilities & Capabilities

• STOCK SHAPES	Rod, sheet, tube and custom shapes for machined parts
• DIRECT FORMING	Net and near-net blanks (higher volume applications)
• MACHINING	RBI offers complete CNC machining of finished VTEC parts and components
• MACHINING	VTEC grades can be engineered based on individual service and application needs. Fillers include glass, carbon, graphite, Teflon, MoS2, minerals, etc.

 

Properties

Physical Form

Custom,

Rods,

Sheets,

Tube

Physical Properties

	Value	Units	Test Method / Conditions
Specific Gravity	1.47	—	D792
Dimensional Stability (% change, 24 hrs at 500°F)	0	%	—
Hardness	86	Rockwell E	D785
Tensile Strength	10290	psi	D638
Tensile Strength (500°F, 15 Min. Soak)	8490	psi	D638
Elongation	5.5	%	D638
Elongation (500°F, (15 Min. Soak)	3.7	%	D638
Compressive Strength (Ultimate)	29500	psi	D695
Compressive Strength (500°F)	20610	psi	D695
Compressive Modulus	408000	psi	D695
Flexural Strength	14000	psi	D790
Flexural Strength (15 Min. Soak, Ultimate)	8500	psi	D790
Flexural Modulus	457000	psi	D790
Volume Resistivity	10^10-10^11	ohms-m	D257
Surface Resistivity	10^10-10^11	ohms-m	D257
Water Absorption	max. 0.1	%	D570
Coefficient Of Thermal Expansion	22	in/in °F 10^-6	D696

Technical Details & Test Data

Jet Engine

Total Wear At Temperature	VTEC BG21
260°C	0.010"
345°C	0.018"
400°C	0.024"