Q & A: Tin Cured Silicone Rubber (8 comments)

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  • 2024-03-24 17:19
    Jeremiah
    Does tin-cured silicone material release heat or harmful fumes as it cures?
    No, our liquid silicone material does not undergo a temperature change when it cures, so it does not emit heat. The chemical reaction that occurs with tin-cured silicone is not dangerous and does not release toxic gases, but there is a slight odor, so it is recommended to use a protective breathing mask.
    2024-03-24 17:02
    Dylan
    How long can a silicone mold made of tin-cured silicone last?
    This is a difficult question to answer. There are many factors that must be considered which contribute to wear on molds. How thick or thin is the mold? What is the mold used for? How large is the mold? Is the mold well-preserved? How often is the mold used? Generally, you should consider using molds made from our materials, whose toughness can ensure long mold life and reliability.
    2024-03-05 22:29
    Ryan
    When I opened it, I could smell the curing agent.
    Yes, the mold made of tin-cured silicone will have a little smell. According to its curing principle, we can know that the smell of silicone is actually the by-product produced during the curing process, including alcohols, ketones, acids, oximes, etc.
    2024-03-05 22:13
    Maria
    There are bubbles in the silicone mold I made. How can I avoid them?
    To reduce the appearance of air bubbles, pour the silicone at a constant speed at a single point on the top of the master mold. For models with complex undercuts, it is recommended to apply a thin layer of silicone with a brush first, and then pour the remaining silicone onto the model after 5 minutes.
    2024-03-02 21:53
    Deven
    I have no experience in making molds, and now I need to customize a mold for a tap handles, and I'm worried about microbubbles affecting the details I want to cast.
    It is recommended to use a vacuum pump to degas to eliminate air bubbles.
    2024-02-29 21:21
    Lucas
    I have cast polyurethane material in tin-cured silicone molds and the silicone molds degraded after 10-15 casts. When making silicone molds, they need to be left overnight to cure, which makes making molds very slow for me. In addition, silicone is very dirty, how to clean it.
    The curing speed of tin-cured silicone is affected by the amount of curing agent and temperature. You can speed up the curing speed by increasing the curing agent ratio, but it cannot exceed 100:5. In addition, curing will be difficult if the temperature is lower than 10°C. No antistatic agent is added in the production of rtv-2 silicone, so it easily absorbs dust and can be cleaned with detergent.
    2024-02-20 21:56
    Ani
    After I added the curing agent to component A silicone, why did it still not cure after waiting for a day?
    Because silicone has a certain viscosity, mix thoroughly after adding the catalyst and be sure to scrape the bottom and sides of the mixing container.
    2024-02-20 19:13
    Martika
    Although it has an odor, it's easier to use than I expected.
    The B part of the tin curing silicone is the tin curing agent and therefore will have an odor. If you want odorless silicone please choose platinum cured silicone.