The difference and conversion between Shore(A) and Shore(D)

Generally speaking,Shore(A) is used to measure the hardness of soft plastics or rubber,Shore(D) is used to measure the hardness of hard plastics or vulcanized rubber.The shape of indentor from A-form sclerometer is frustum cone and the shape of indentor from D-form sclerometer is conical.

Test method of Shore(A) and Shore(D) are different.It could not be converted between them in the ordinary way.So if you want to measure plastics under 90 Shore(A),A-form sclerometer is  the best choice. If Higher than 90A,D-form is the best.

But we have two kinds of approximate conversion method.

   1、 D=A-50  ；

   2、A=0.173D+86.58.

If you want accurate hardness, it is recommended to use the A-form sclerometer for soft plastic, D-form sclerometer for hard plastics.

BTW:other special presentation options of hardness.

1.Shore(C):it is usually used to measure ultrasoft plastics which hardness is under 0 Shore(A),The hardness of Thermoplastic Elastomers(TPE) and
Thermoplastic Rubber(TPR) which has good Oil absorbing can be made to under 0 Shore(A)

2016 China ( Poland ) Trade Fair invitation from GAINSHINE Plastic

Are you looking for a new supplier?
Are you keeping up with the latest product revolution trend?
Do you want to know more about TPE/TPR materials for your best product performance?

We are GainShine Plastic Technology – a leading TPE/TPR manufacturer in Asia region located in Shenzhen, China.
We will show you a new definition of TPE. We’ve got not only TPE but also the most customized solutions for any of your exclusive needs.

Welcome to our booth in 2016 China ( Poland ) Trade Fair invitation :
6-9 June 2016
Poland WARSAW EXPO
GainShine Plastic Technology Co., Ltd.
Booth F226

See you there!

Contacts:Seazon Xie(Manager) Mobile:86-13798223311
Whatsapp：008613538267057  Skype:tonyhuang011 Wechat:t1071972750
Email:gainshine@gstpe.com

Website: www.gainshinetpe.com

Address:Building 3, Tangqian Industry, Zhangge, Guanlan, Shenzhen, Guangdong, China