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

/in , /by

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.

 

how to choose suitable moldmaking,liquid silicone for mouldmaking,soft liquid silicone rubber,hard liquid silicone rubber

How to Choose Suitable Sibetter Mould Making Silicone for Different Products

/in , /by

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!

sibetter silicone rubber-for-making mould by brushing

How to Use Sibetter Silicone Rubber to Make Mould by Brushing Way

/in , /by

Generally, there are two ways to make the silicone rubber moulds. Now we are going to introduce you how to use Sibetter silicone rubber to make the moulds by brushing way, which is better to copy the detailed patterns with less silicone rubber.

Read more

how to make moulds by pouring way

How to Use Sibetter Silicone Rubber to Make Mould by Pouring Way

/in , /by

Generally, there are two ways to make the silicone rubber moulds. Now we are going to introduce you how to use Sibetter silicone rubber to make the moulds by pouring way, which is the most easy way to make the moulds with simple patterns. 
Read more