1. Cummins Power - Insulating Materials Mentor: Robert Rossini Patrick Cleaver Justin Fernandez Ethan Taylor

2. Product Design Specifications Properties  Thermal  Acoustic  Environmental  Workable  Cost

3. Thermal Properties Thermal Insulation Maximum Operating Temperature R-Value (Conductivity) Surface Burning Flame Spread/Smoke Developed Thermal Expansion

4. Acoustic Properties STC (Sound Transmission Class) Indicates sound transmission loss NRC (Noise Reduction Coefficient) Average sound absorption coefficient of four frequencies

5. Environmental Non-Hygroscopic Will not absorb water Lifetime Mold resistant

6. Workable Installation Can be machined Processing Minimal additional processing

7. Cost

8. Mineral Wool Currently Used Material Maximum Temp 1200 °F 0.75 R-Value Burning ? STC 10 Fibrous

9. Calcium Silicate Maximum Temp 1200 °F 0.65 R-Value Burning 0/0 STC 55? Resistant to Breakage

10. Expanded Perlite Maximum Temp 1200 °F 0.85 R-Value Burning ? STC ? Resistant to Breakage

11. Acoustiblok® Low Operating Temperature STC 32 Waterproof

12. Sound Proof Foam Low Operating Temperature NRC 0.65 Not noise blocking

13. Selection Selection CriteriaWeight Thermal0.2 Acoustic0.3 Mechanical0.05 Environmental0.05 Workability0.3 Cost0.1

14. Materials Selection

15. Considerations Composite Material Stand Alone Testing

16. Questions?