PROVIDING SOLUTIONS TO
YOUR PLASTIC REQUIREMENTS
FOR OVER 40 YEARS

Vespel® Plastic Machining

Vespel

Vespel® per ASTM D6456 is considered one of the highest performing engineering plastics on the market today. The very properties that make this material such a performer also make it difficult to machine. Understanding the machining properties of various grades of Vespel® is critical to being able to produce a quality part. Upland Fab has decades of experience machining various grades of Vespel®.

 

Upland Fab's Vespel® Experience Saves Time & Money

Current users of Vespel® per ASTM D6456 and other Polyimides such as Meldin® already know there is a very high cost to these materials. This is why it is critical to choose a machining supplier with experience. Upland Fab’s experience enables parts to be machined with minimal scrap, these savings are passed on to the customer.

 

CNC Technologies for Machining Vespel® Polyimide Parts

Upland Fab employs the use of multi-axis machining when working with Vespel®. This application of technology is critical to ensuring the parts are machined correctly the first time with minimal handling and fixturing. Often times even the most complex parts are completed in a single operation.

By relying on Digital Product Definition, also referred to as Model-Based Definition or DPD/MBD processes, we are able to machine parts directly from our customers’ CAD models. As a result, the possibility of errors is greatly reduced – and so are costs. You won’t find high quality, low-cost Vespel® parts anywhere else.

 

Upland fab's Top-Flight Communication

Communication is essential for success. By offering a variety of Vespel® polyimide machining and fabrication services, we will ensure that projects move smoothly and swiftly. Moreover, every one of our clients works with a single point of contact, which means they experience reliable communication and a level of consistency that they won’t find anywhere else.

 

Discover the Upland Edge

Upland Fab machines top-quality parts from Vespel® per ASTM D6456. To start a project send us a Request for Quote, or get your questions answered, Contact Us today.

 

Properties of Vespel® Material

TYPICAL PROPERTIES of Vespel
ASTM or UL test Property 
Vespel® SP-1
Vespel® SP-21
Vespel® SP-22
Vespel® SP-211
Vespel® SP-3
  Filler Material Unfilled 15% Graphite 40% Graphite 10% PTFE, 15% Graphite 15% Moly
PHYSICAL
D792 Vespel® Density (lb/in³) (g/cm³) 0.051
1.43
0.055
1.51
0.060
1.65
0.056
1.55
0.058
1.60
D570 Water Absorption of Vespel® 24 hrs @ 73°F (%) 48 hrs @ 122°F (%)

0.24

0.72

0.19

0.57

0.14

0.42

0.21

0.49

0.23

0.65

MECHANICAL
D638

Vespel® Tensile Strength, Ultimate @ 73°F (psi)
@ 500°F (psi)

12,000

6,000

9,500

5,500

7,500

3,400

6,500

3,500

8,200

-

D638 Tensile Modulus (psi) - - - - -
D638

Tensile Elongation, Ultimate @ 73°F (%)@ 500°F (%)

7.5

6.0

4.5

6.0

3.0

2.0

3.5

3.0

4.0

-

D790 Flexural Strength of Vespel®, Ultimate @ 73°F (psi) @ 500°F (psi)

16,000

9,000

16,000

9,000

13,000

6,500

10,000

5,000

11,000

5,500

D790

Flexural Modulus @ 73°F (psi)
@ 500°F (psi)

450,000

250,000

550,000

370,000

700,000

400,000

450,000

200,000

475,000

270,000

D695 Compressive Strength, 10% strain @73°F(psi) 19,300 19,300 16,300 14,800 18,500
D695 Compressive Modulus (psi) 350,000 420,000 475,000 300,000 350,000
D785 Vespel® Hardness, Rockwell E45-60 E25-45 E5-25 E1-20 E40-55
D256 IZOD Impact Notched (ft-lb/in) 0.8 0.8 - - 0.4
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x10-5 in./in./°F)
3 2.7 2.1 3 2.9
D648 Heat Deflection Temp (°F/°C)
at 264 psi
680 / 360 680 / 360 - - -
- Max Continuous Operating Temp (°F/°C) 500 / 260 500 / 260 500 / 260 500 / 260 500 / 260
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x10-4 cal/cm-sec-°C)

2.0
6.9

6.0
20.7

12.0
41.3

5.3
18.3

3.2
11.0
UL94 Flammability Rating of Vespel® V-0 V-0 V-0 V-0 V-0
ELECTRICAL
D149 Dielectric Strength of Vespel® (V/mil) short time, 1/8" thick 560 250 - - -
D150 Dielectric Constant at 1 MHz 3.55 13.2 - - -
D150 Dissipation Factor at 1 MHz 0.0034 0.0106 - - -
D257 Volume Resistivity (ohm-cm) at 50% RH 10^14 - 10^15 10^12 - 10^13 - - -

 

Contact Upland Fab today to learn more about Vespel® Machining.

Providing Top-flight Plastics & Composite Machining in Southern California Since 1970. Contact us today for more information, or send us a Request for Quote! We are looking forward to hearing from you!

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