How to distinguish TPU?

Recently, plastic products are more and more in our life. Some plastic is toxic while others is eco-friendly. As we know, TPU is one of eco-friendly plastic and which in different degrees has different property. In contrast, silica gel and synthetic rubber are not as eco-friendly as TPU, though they has similar property.

 

Here we have some ways to distinguish TPU, silica gel and synthetic rubber.

TPU:

1.       Clear or colored.

2.       Has yellow flame, a little explosion, few white smoke when fire. It can also have black smoke when it’s not fully fire sometimes.

3.       A little bit fragrance.

4.       Range of hardness is 60A-80D.

 

Silica gel:

1.       Has bright white flame when fire.

2.       A little bit smell and smoke when fire. The residue after fire is white powder.

3.       Range of hardness is 10A-90A.

 

Synthetic rubber:

1.       The firing flame is yellow.

2.       Smelly when fire.

3.       Range of harness is generally 50A-80A.

Article origin: http://www.tputapes.com/wdgweb_content-41475.html