What type of resin should I use for super large casting?

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    • January 26, 2021 at 11:26 pm #91743
      Landon
      Guest

      Hey y’all,

      I am about to embark on the largest project I have ever taken on. It will be a 6 foot by 4.5 foot by 1.5 inch layered resin painting. basically I pour a layer of resin, paint on top of it then pour another layer of resin and paint on top and repeat this until I get the thickness/image I want (2″ = 30 layers). I have been doing this with smaller castings with ease using the epoxy resin store Clearcast 7000 which has a hardness rating of D70. This is a good hardness, but I am unsure if it is hard enough for my new projects large dimension. What are you guys opinions? Do you you have a resin brand I should consider? should I use polyester instead of epoxy resin? Should I reinforce my first layer with rebar or something like casting it on top of a metal sheet? please let me know if you have any advice for such a large dimension.

    • January 27, 2021 at 12:19 pm #91745
      Katherine Swift
      Keymaster

      Hi Landon,

      The Resin Obsession deep pour resin will work great for a project like this. You can buy it in two different sizes in our store here: https://shop.resinobsession.com/collections/resin/resin-obsession-deep-pour-resin

    • January 31, 2021 at 9:19 pm #91780
      Laura Fox
      Guest

      Hi Katherine,

      Your website is wonderful, thank you for all of the insight. I read your article about the types of resin you should use several times but I’m still unsure which one to use.
      NOTE: I HAVE NEVER USED RESIN BEFORE, EVER.
      I would like to preserve dried bridal flowers (so they’re quite large) and the wedding invitation in a 10 inch x 10 inch square mold with 1.75 inch depth as a gift for the bride.

      The factors at issue are:
      1) I am complete beginner,
      2) Its a thick/large mold (10x10in. & 2.75in. depth)
      3) Environmental: longevity of clarity & exposure to moisture — The bride lives in FLORIDA so the resin must have good defense again UV light so it WILL NOT YELLOW with time & needs to be ok with humidity.(I live In PENNSYLVANIA and it’s currently freezing here and that is where I’m making the project. I plan to mail the completed project to her).

      So… what type of resin should I use? I know epoxy is best for beginners but I worry this is too big of a casting. I would also like to make coasters with dried flowers but I’m guessing that takes a different type of resin?

      Thank you!!!
      Laura

      PS: sorry for the occasional phrases in all caps, I know it looks like I’m shouting, haha. I’m on my phone so I can’t make the text bold or underline for emphasis.

      • February 1, 2021 at 2:45 pm #91786
        Katherine Swift
        Keymaster

        Hi Laura,

        Thank you for the kind words. They mean a lot!

        For pours of 3 ounces or more, the Resin obsession deep pour casting resin works great:  https://shop.resinobsession.com/collections/resin/resin-obsession-deep-pour-resin

        Unfortunately, all resins are going to yellow over time. Resins with UV inhibitors and stabilizers help extend the time before yellowing occurs. However, things such as mixing off ratio (even though it still can cure without tackiness), putting over an improperly cured lacquer, excessive heat, and or constant exposure to sunlight can speed up the yellowing process. How long the epoxy will last in its clear state is very difficult to predict.

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