Wear Resistance Data

RTP 300 Series Polycarbonate (PC) Compounds — English Units

[photo]

Wear factor (K) is an indication of a materials resistance to wear as a function of the volume of material lost, force (load) and velocity at the wear interface and time. It is often determined using a "thrust washer" wear testing apparatus per ASTM D3702 in which a molded plastic specimen is rotated against a substrate thrust washer under set pressure and velocity conditions.

A wear factor is calculated with the equation W=K*F*V*T. In this equation W is wear volume (in3), K is wear factor (in3 min/ft lb hr)10-10, F is force (lb), V is velocity (ft/min), and T is elapsed time (hr).

A material with a lower wear factor (K) has greater resistance to wear and these values are useful for material comparison purposes.


[ View wear data in metric units | Return to wear data resin list ]

Plastic vs Plastic

Test Conditions
PV 1000
Load 4
Speed 50
Rotating Sample vs Stationary Sample µ
Dynamic
RTP Product Wear
Factor
RTP Product Wear
Factor
RTP 300
PC
Unfilled
1256 vs RTP 200
PA 6/6
Unfilled
616 0.64
RTP 300
PC
Unfilled
6797 vs RTP 205
PA 6/6
30% Glass Fiber
285 0.39
RTP 305
PC
30% Glass Fiber
3147 vs RTP 305
PC
30% Glass Fiber
865 0.31
RTP 305
PC
30% Glass Fiber
129 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
356 0.29
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
226 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
195 0.19
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
809 vs RTP 300
PC
Unfilled
318 0.28
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
98 vs RTP 205 D TFE 15
PA 6/12
30% Glass Fiber
15% PTFE
173 0.18
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
4 vs RTP 285 TFE 15
PC
30% Carbon Fiber
15% PTFE
29 0.11
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
413 vs RTP 1005 TFE 15
PBT
30% Glass Fiber
15% PTFE
533 0.11
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
2 vs RTP 285 D TFE 15
PA 6/12
30% Carbon Fiber
15% PTFE
53 0.17
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
1169 vs RTP 1305 TFE 15
PPS
30% Glass Fiber
15% PTFE
285 0.28
RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
329 vs RTP 205
PA 6/6
30% Glass Fiber
246 0.23
RTP 300 TFE 15
PC
15% PTFE
83 vs RTP 300 TFE 15
PC
15% PTFE
340 0.14
RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
2569 vs RTP 301 TFE 15
PC
10% Glass Fiber
15% PTFE
129 0.25
RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
1565 vs RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
101 0.32
RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
11 vs RTP 285 D TFE 15
PA 6/12
30% Carbon Fiber
15% PTFE
2 0.13
RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
14 vs RTP 285 TFE 15
PA 6/6
30% Carbon Fiber
15% PTFE
15 0.15
RTP 381 TFE 15
PC
10% Carbon Fiber
15% PTFE
108 vs RTP 205 D TFE 15
PA 6/12
30% Glass Fiber
15% PTFE
39 0.16
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor units: (in3 min/ft lb hr)10-10
  • PV units: lb ft/in2 min
  • Load units: lbs
  • Speed units: ft/min

Plastic vs Steel

RTP Product RTP Product Tested vs Steel (1018 C)
Test Conditions
PV 2000
Load 8
Speed 50
Test Conditions
PV 5000
Load 10
Speed 100
Test Conditions
PV 10000
Load 40
Speed 50
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
RTP 300
Unfilled PC
556 0.60        
RTP 300 TFE 10
10% PTFE
326 0.24 413 0.22 126 0.13
RTP 300 TFE 15
15% PTFE
131 0.33 95 0.27 34 0.21
RTP 300 TFE 20
20% PTFE
176 0.31 126 0.24 58 0.18
RTP 300 TFE 10 SI2
10% PTFE
2% Silicone
495 0.35 162 0.26 58 0.18
RTP 305 TFE 15
30% Glass Fiber
15% PTFE
88 0.35 46 0.53 501 0.27
RTP 385 TFE 15
30% Carbon Fiber
15% PTFE
142 0.30 102 0.39 36 0.36
RTP 300 AR 10 TFE 10
10% Aramid Fiber
10% PTFE
490 0.38 6020 0.29 7330 0.31
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor units: (in3 min/ft lb hr)10-10
  • PV units: lb ft/in2 min
  • Load units: lb
  • Speed units: ft/min

Comparing competitive data note

  • RTP Company reports Wear Factors per unit Force (KF) with units of (in3 min/ft lb hr)10-10. This is the industry standard way to calculate and report Wear Factor. Some suppliers report Wear Factors per unit Pressure (KP) with units of (in5 min/ft lb hr)10-10. This value is arrived at by dividing the KF by the contact surface of the test specimen (0.35 in2). As result of this reporting discrepency, RTP Company's Wear Factor values appear to be significantly higher. For example a KP of 3 (in5 min/ft lb hr)10-10 would be equal to KF of 3/0.35 = 8.57 (in3 min/ft lb hr)10-10.

No information supplied by RTP Company constitutes a warranty regarding product performance or use. Any information regarding performance or use is only offered as suggestion for investigation for use, based upon RTP Company or other customer experience. RTP Company makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents.