| |
Balsawood |
Linear
PVC |
Cross-linked
PVC |
SAN
foams |
Honeycomb
Polypropylene |
| Closed cell structure |
3 |
10 |
10 |
10 |
10 |
| Resistance to fresh/salt water |
3 |
8 |
8 |
8 |
10 |
| Resistance to water vapor transmission |
2 |
9 |
9 |
8 |
3 |
| Resistance to gasoline/diesel fuel |
7 |
6 |
6 |
6 |
10 |
| Resistance to styrene |
10 |
4 |
6 |
6 |
10 |
| Outgassing tendency |
10 |
10 |
1 |
9 |
10 |
| Compression Strength |
10 |
4 |
8 |
6 |
6 |
| Flexural Modulus |
6 |
4 |
6 |
8 |
4 |
| Shear Strength |
9 |
8 |
7 |
7 |
3 |
| Impact Strength |
5 |
10 |
3 |
8 |
8 |
| Fatigue Strength |
3 |
3 |
7 |
9 |
9 |
| Resistance to crack propagation |
8 |
10 |
2 |
6 |
9 |
| Heat distortion temperature |
10 |
3 |
6 |
4 |
4 |
| Thermal Insulation |
5 |
7 |
8 |
6 |
5 |
| Damping Characteristics |
4 |
5 |
4 |
5 |
10 |
| Burning Characteristics |
8 |
5 |
5 |
4 |
3 |
| Smoke/Toxic Emissions |
8 |
3 |
3 |
3 |
3 |
| Versatility in boat building |
5 |
2 |
5 |
6 |
6 |
| Weight |
5 |
8 |
7 |
8 |
8 |
| Price |
9 |
5 |
6 |
3 |
10 |
| Totals |
130 |
124 |
117 |
123 |
146 |
