Q & A: FDA-Approved Medium Hardness Platinum Cured Liquid Silicone Rubber (11 comments)
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2023-08-13
Charlotte
Why can't the silicone I use be cured, even heating can't solve it.
Cure inhibition can occur with platinum-curing silicone, and it depends on the material in contact with the silicone. Surface compounds that contain water, sulfur, nitrogen compounds, organometallic or phosphate compounds may inhibit the curing process. Cure inhibition is characterized by a gummy or sticky appearance of the silicone at the interface between the silicone and the offending substrate.
Cure inhibition can occur with platinum-curing silicone, and it depends on the material in contact with the silicone. Surface compounds that contain water, sulfur, nitrogen compounds, organometallic or phosphate compounds may inhibit the curing process. Cure inhibition is characterized by a gummy or sticky appearance of the silicone at the interface between the silicone and the offending substrate.
2023-04-30
Alyssa
When using non-sulfur oil based clays, I have had issues curing the silicone. Can I cover the non-sulfur oil based clay with a release agent to solve the curing problem? Is there any good solution?
Non-sulfur oil-based clays can sometimes interfere with the curing process of silicones. This is because the clay may contain sulfur, which can react with the silicone and prevent it from curing properly. Mold release agent is not a good solution, as it will not prevent the sulfur from reacting with the silicone. The best solution is to use a clay that does not contain sulfur, or to prime the clay before pouring in the liquid silicone.
Non-sulfur oil-based clays can sometimes interfere with the curing process of silicones. This is because the clay may contain sulfur, which can react with the silicone and prevent it from curing properly. Mold release agent is not a good solution, as it will not prevent the sulfur from reacting with the silicone. The best solution is to use a clay that does not contain sulfur, or to prime the clay before pouring in the liquid silicone.
2023-04-30
Alice
Could I use liquid epoxy coloring in conjunction with this product?
Using liquid epoxy coloring is not recommended, as it may adversely affect the curing process of platinum-cured silicone. For best results, please use a special silicone pigment designed for silicone rubber.
Using liquid epoxy coloring is not recommended, as it may adversely affect the curing process of platinum-cured silicone. For best results, please use a special silicone pigment designed for silicone rubber.
2023-04-27
Christian
Can this silicone material be used to make a mold and then use it to make silicone products?
Yes, you can make a mold with our platinum-cured silicone and use it to make silicone items. However, there are some pre-treatment steps that you need to follow. Please contact our customer support team for detailed directions.
Yes, you can make a mold with our platinum-cured silicone and use it to make silicone items. However, there are some pre-treatment steps that you need to follow. Please contact our customer support team for detailed directions.
2023-04-26
Bevis
I am wondering if anyone has used platinum-cured silicone as a base coat, then applied tin-cured silicone to bulk out the rest of the mold space for strength. I am wondering if the tin-cured silicone would effectively bond to the platinum-cured silicone.
It's worth noting that tin-cure silicone and platinum-cure silicone don't form a strong bond with each other. This is mainly due to the fact that tin-cured silicone tends to shrink more than platinum-cured silicone, making it unsuitable for certain applications where a seamless and durable bond between the two is required.
It's worth noting that tin-cure silicone and platinum-cure silicone don't form a strong bond with each other. This is mainly due to the fact that tin-cured silicone tends to shrink more than platinum-cured silicone, making it unsuitable for certain applications where a seamless and durable bond between the two is required.
2023-04-19
Michael
I am planning to make a mold for soft bait fishing lures. Would this be a suitable material for pouring plastisol into?
Yes, you can use our addition cured silicone to make silicone molds for soft baits and fishing lures. When casting plastisol, it is recommended to apply a release agent to avoid sticking mold separation difficulties.
Yes, you can use our addition cured silicone to make silicone molds for soft baits and fishing lures. When casting plastisol, it is recommended to apply a release agent to avoid sticking mold separation difficulties.
2023-04-15
Daniel
Why has the liquid silicone I used not cured in over 24 hours?
This type of silicone is an addition-cure silicone that contains a platinum catalyst. The primary reason why this type of silicone has curing inhibition is that your master mold contains acid or alkali substances. UV resins for 3D printing materials are typical cases. In addition, temperature may also affect the curing of silicone.
This type of silicone is an addition-cure silicone that contains a platinum catalyst. The primary reason why this type of silicone has curing inhibition is that your master mold contains acid or alkali substances. UV resins for 3D printing materials are typical cases. In addition, temperature may also affect the curing of silicone.