Tech Tip September 2003
 

Material Selection Checklist      

Date ____________ Customer  ___________________ Project  _____________________

Describe the function of the part;  ______________________________________________________________
______________________________________________________________
______________________________________________________________

Similar Products on the Market- _________________________________________________________

Wall section -  ________________________________________________________________________
 

Considerations    (Relate to common plastic products if unable to quantify)

1. LOADS
1.1. Type  ____________________
1.2. Magnitude ____________________
1.3. Duration ____________________
1.4. Frequency ____________________
1.5. Impact  ____________________  (Single Impact or Repeated Impact)
1.6. Fatigue  ____________________
1.7. Wear  ____________________
2. ENVIRONMENT
2.1. Temperature ____________________
2.2. Chemicals ____________________
2.3. Humidity ____________________
2.4. Cleaning Agents ____________________
2.5. Lubricants ____________________
2.6. UV Light ____________________
2.7. Duration ____________________
3. ELECTRICAL
3.1. Voltage  ____________________
3.2. Conductivity ____________________
3.3. Insulating ____________________
3.4. EMI/RFI ____________________
4. SPECIAL
4.1. Transparency ____________________
4.2. Paintability ____________________
4.3. Plateability ____________________
4.4. Color  ____________________
4.5. Surface Finish ____________________
4.6. Other Appearance___________________
4.7. Flammability ____________________
4.8. UL or C.S.A. ____________________
4.9. FDA  ____________________
4.10. NSF  ____________________
4.11. Other Agency ____________________
4.12. Cost  ____________________
4.13. Tolerances ____________________
4.14. Assembly ____________________
4.15. Sterilization ____________________

The properties need to be ranked in order of importance because the selection process will involve trade-offs of properties and price or within properties.  We must know what criteria must be held at all costs.
 
 

Steven L Silvey
Sr. Technical Service
GP-ADC
Slsilvey@ashland.com