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  • #46
    Drilling into the front was easier than I thought. Placed 10 tapcon screws around the perimeter.

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    • #47
      Originally posted by timechanter View Post
      fnbroken i picked mine up from Sydney Firebricks over a few trips (was in the area with work a few times). If you are getting a bunch of stuff and have the money together having them ship it to a Depo in Canberra is way cheaper than the fuel (they are far northern beaches, 3.75 hrs from Canberra )

      Ss needles for castable reinforcing came direct from Artec (with a tear inducing shipping price), and Powdered Clay from Fyshwick behind the petrol station just down from office works.
      Might need to catch up for a chin-wag....
      Cheers

      Greg

      My Build: https://community.fornobravo.com/for...erra-australia

      Photo Album: https://photos.google.com/album/AF1Q...JZX8QMLT_9mVj7

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      • #48
        I fell into the common trap of getting the oven to usable completion. It's working great. So today I finally decided it was time to render over the perlcrete and the stand.

        Im just waiting on final side to dry for floating. But just an update photo. Probably a couple of weekends left to tile front landing, grout and finish shelving for wood. So close to actually done (well, until water proofing). Thanks all.

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        • #49
          Grouting and last tiling completed. Until water proofing I am done. Oh and need to get a load of wood. Thanks one and all I love it.

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          • #50
            What are you going to use for waterproofing timechanter?
            Cheers,

            Steady

            http://www.fornobravo.com/forum/f51/...ild-21760.html

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            • #51
              I've seen a few threads where a watered down acrylic render is used to water proof. I was thinking of doing that. Open for suggestions.

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              • #52
                I used Bondall Silasec but need to do something else. When my oven is in use some very vine cracks open up in the outside render, I am thinking about going over it again with a flexible film that will stretch an bridge them.
                Cheers,

                Steady

                http://www.fornobravo.com/forum/f51/...ild-21760.html

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                • #53
                  You can use a 100% acrylic render watered down 20% so you can paint it on. Be careful some renders are marked acrylic but are really only "acrylic modified cement renders" (read the fine print) The 100% acrylic comes wet in a bucket, not dry in a bag. It's also way more expensive than dry cement renders.
                  Kindled with zeal and fired with passion.

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                  • #54
                    Originally posted by david s View Post
                    You can use a 100% acrylic render watered down 20% so you can paint it on. Be careful some renders are marked acrylic but are really only "acrylic modified cement renders" (read the fine print) The 100% acrylic comes wet in a bucket, not dry in a bag. It's also way more expensive than dry cement renders.
                    Thanks David, I will go looking for some 100% acrylic render
                    Cheers,

                    Steady

                    http://www.fornobravo.com/forum/f51/...ild-21760.html

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                    • #55
                      Its been a while due to way too much (is that a thing? ) pizza eating. Finally correct weather and time to finish the water proofing and feature tiles. Thanks to all, loving the oven.

                      Before sealing I did drill into the outer shell to install a brass threaded cap for future drying, after cracking the outer dome due to a prior incident with water and enthusiasm. I ended up using Gripset Betta 4L Weather Seal that nicely hides the dome cracks. Then painted over that with external paint colour matched to my windows .

                      The flue gallery is painted with White Knight High Temp 500ml Pot Belly . I didn't think the weather seal would handle the higher external temps of gallery, so its just a few coats of black.
                      Last edited by timechanter; 03-31-2018, 03:33 AM.

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                      • #56
                        Looks good timechanter, I still need to get a waterproof coating/membrane on my dome
                        Cheers,

                        Steady

                        http://www.fornobravo.com/forum/f51/...ild-21760.html

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                        • #57
                          great job! when's pizza night????

                          materials noted for later too....
                          Cheers

                          Greg

                          My Build: https://community.fornobravo.com/for...erra-australia

                          Photo Album: https://photos.google.com/album/AF1Q...JZX8QMLT_9mVj7

                          Comment


                          • #58
                            Hey Timechanter,

                            Great looking build man. Nice work. I'm in Canberra also, been working on the oven for several years, and also fell into the trap of "too much pizza eating", however, I'm making a final push now. I'm at final waterproofing stage, and put three coats of Silasec over calsil blanket. But for the life of me couldn't get it to set without cracking like buggery, and that's before I even put a fire in it. So I think the membrane is the go. How's the Gripset Betta going after some fires? And where did you find the product? Did you water it down like David S suggested? David S, what products have you used? I was looking at Crommelin Exterior Grade Waterproofing which seemed like about the only suitable thing I could find at Bunnings.

                            Here's my build BTW: https://community.fornobravo.com/for...ld-in-canberra

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                            • #59
                              Working a render layer over blanket is difficult because the surface is lumpy and flexible. I prefer to cover it with a layer of 10:1 vermicrete( a handful of powdered clay for every litre of cement makes the mix more workable. After 24 hrs the stuff has set up well enough to either fill gaps with more of the same mix or carve some of it back. It’s a nice firm substrate to render on to. Once you have the form back to a nice smooth hemisphere the cement render will make a strong protective shell. You should hold the moisture in this layer to enhance strength. I like to wrap the whole oven in cling wrap for a week. Regarding waterproofing, after around 10 cooking fires the outer shell should be perfectly dry and if you feel inclined it can have a waterproof coating. A 100% acrylic render is a pretty good solution. I find it easier to apply by painting it on and this requires diluting 20% with water. I prefer to use flexible pointing which has been designed to create an extremely flexible layer.
                              Kindled with zeal and fired with passion.

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                              • #60
                                Hey Dave, I wrapped the oven in plastic for a week, wet it down every 4hrs or so and the sucker still cracked badly. I can just imagine what's going to happen when I put a fire in. Anyway, think I'll burn now and fully dry out the outer shell then hit it with acrylic render.

                                What specific acrylic render products are available in Oz? Gripset Betta. Others?

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