Comparison of Silicon with Different Hardness Shore 40A, 20A and 0A

- May 11, 2018-

Silicone have fine electrical properties, good chemical stability and flame retardancy, and super resistance to heat and cold.

But it cannot simply be heated up and printed into shapes the same way that thermoplastics or metal are. Therefore, those well-developed 3D printing technique, like FDM, SLA, SLS are not applicable to silicone.

Trandomed 3D has developed new technology making it possible to 3D print silicone.  3D printed silicone vascular model and organ model have been successfully applied to real simulation.  Generally we use silicone of Shore 40 A, 20A and 0A hardness as raw material.


We do comparison test of these three silicone and following are results.


 

Extensibility


 

No

Material

Before   stretching

After   stretching

Note

 

1

 

Shore 0A

1a.jpg

1b.jpg

 

 

High tensile strength

 

2

 

Shore   20A

2a.jpg

2b.jpg

 

 

Good tensile strength

 

 

3

 


Shore   40A

3a.jpg

3b.jpg

 

Mild tensile strength

Note: the wall thickness of three silicone tube is same.

 

 

Hardness

 

No

Material

Harness

Note

 

 

1

 

 

Shore  0A

4a.jpg

 

 

very soft, cannot keep straight

 

 

2

 

 

Shore  20A

4b.jpg

 

 

A little flexible

 

 

3

 

 

 Shore  40A

4c.jpg

 

 

Keep straight

 

 

Transparency

 

No

Material

Transparency

Note

 

 

1

 

 

Shore  0A

5a.jpg

 

 

60% transparency, a little whitish

 

 

 

2

 

 

 

Shore  20A

5b.jpg

 

 

75% transparency

 

 

 

 

3

 

 

 

Shore  40A

5c.jpg

 

 

85% transparency