Sibetter Silicone Rubber Factory Get The Certificate of REACH for Liquid Silicone Products

Sibetter Silicone Rubber Factory finally get the certificate of REACH for liquid silicone rubber products that manufactured by self on Sep. 20th,

The products that can pass REACH CERTIFICATE is as follows:

Platinum cure mould making silicone: XB-600~XB-660#

Lifecasting silicone rubber: XB-800~XB-840#

Silicone gel: XB-900, XB-902#


REACH is a new European Community Regulation on chemicals and their safe use which stands for Registration, Evaluation, and Authorization of Chemical substances. The pre-registration phase started in June 2008.

The aim of REACH is to improve the protection of human health and the environment through the better and earlier identification of the intrinsic properties of chemical substances.

The REACH Regulation gives greater responsibility to industry to manage the risks from chemicals and to provide safety information on the substances. Manufacturers and importers will be required to gather information on the properties of their chemical substances, which will allow their safe handling, and to register the information in a central database run by the European Chemicals Agency (ECHA) in Helsinki Finland.

How To Add Pigment Into The Silicone Rubber To Get Colorful Moulds

Generally speaking, the silicone rubber has two kinds, tin cure (condensation cure ) silicone and platinum cure (addition cure) silicone rubber. And the part B of both kinds are the hardner.


Usually, the pigment would be added into the hardner. But what we should pay attention to is that the platinum cure silicone rubber is very sensitive, and the heavy mental or the impurities can make it uncured easily. So pls do make sure the pigment is suitable for silicone rubber.


Then, how many to add?


If for the tin cure silicone rubber, add about 2% pigment into the hardner first (100g hardner, 2g pigment.) stir them evenly and then add it into the rubber base.
If for the platinum cure silicone rubber, add about 0.2%~0.5% pigment into the hardner first (100g hardner, 0.2g~0.5g pigment) stir them evenly and then mix it with the silicone rubber base.


Of course, you can adjust the addition of the pigment according to the different shade you want.


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Dear honorable customers,

Thank you very much for your support and cooperation all the time.

Please kindly be advised that our office will take a holiday from Jan. 19th to Feb. 4th , 2017 for the coming Chinese We will resume the normal work on Feb. 5th, 2017.

Thanks a lot for your support in the past year, wish we would have blooming business and fuitable cooperation in 2017.

Dongguan Sibetter New Material Technology Co.,Ltd

Date: Jan. 19th, 2017

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How to Choose Suitable Sibetter Mould Making Silicone for Different Products

As we all know, the hardness of the Sibetter mould making silicone rubbber ranges from below 0 shore A to 60 shore A, or higher. And if the hardness is not suitable, the silicone mould would meet some problems, such as the nondurable, less duplications times, thrinkage, ect.

Then how to choose the right items of Sibetter mould making silicone for different products?
Normally, different silicone rubber should be chosen according to different produucts’ features:

For example:

—-for products within 20cm

With intricaste design, soft silicone is suitable, such as 10~20 shore A.

—-for products of 20~80cm

With intricate designs, 20~250 shore A is suitable

With simpe designs, 25~30 shore A is suitale

—-for products of 80cm~150cm

With intricate designs, 30 shore A is suitable

With simple designs, 30~35 shore A is suitable


—-for products more than 150cm

With intricate designs, 30~35 shore A is suitable

With simple designs, 35~40 shore A is suitable

Also, if want to make mould by pouring way for some complex products to avoid the impacting of the mold line, then softer silicone rubber would be recommended, considering the problems of demould.

Anyway, above are only suggestions from Sibetter Silicone rubber that summarized from the sales experiences of more than 10 years. All would be decided by the practise situation. Hope this share will be helpful for you.

If you want more information about silicone rubber, you would be welcome all the time to talk to Sibetter Silicone!

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