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Silicone Gasket #2
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Bear 007
Posts: 383
On the last gasket I used the Car Quest brand of silicone, its the copper 700 degree formula, says on the back its made by Permatex. It failed on the last pizza cook.
So I'm trying again using the Permatex labled stuff, (the one on the left).
This time I decided on a different approach.
I cut a groove in a piece of MDF 3/16" deep to fit the diameter of my Lg. BGE.
Filled the groove with Permatex brand silicone
Let it dry 24hrs then pulled
A little of the MDF board stuck but it will burn off the first cook, its just cardboard
Then just glued it on, real easy.
So I'm trying again using the Permatex labled stuff, (the one on the left).
This time I decided on a different approach.
I cut a groove in a piece of MDF 3/16" deep to fit the diameter of my Lg. BGE.
Filled the groove with Permatex brand silicone
Let it dry 24hrs then pulled
A little of the MDF board stuck but it will burn off the first cook, its just cardboard
Then just glued it on, real easy.
Comments
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Looks interesting!
I'm sure you'll report on how it works.........John in the Willamette Valley of Oregon -
Nice job
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Brilliant! :cheer: Hope it stays put. Nice jig. Wondering if a release agent in the mold would help, a paste wax? Paste wax soaks right into MDF.
Keep us informed. -
I did use a silicone release agent, I really don't think you need it, the MDF is too porous for it to work.
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You should start selling them. I bet some folks want a permatex gasket but do not want to go to the trouble.
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I did think bought it, but I want to see how this works first. I think I would have to make them in some kind of PVC mold, Azek or something.
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that's fantastic!...... ( coming from the originator of the rtv gasket).... rr
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my original gasket has been on for at least 7 years..... just a bead of permatex... covered with some plastic wrap and some spray veg. oil..rr
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Great idea and I hope it works.Please let us know how it holds up
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I'm unclear on something. You're showing two different Permatex products in your lead photo, and I have two tubes of the left-hand version at home awaiting to be applied. Yet the right-hand stuff shows 700 F on the package, too.
Did you use a different product on the pre-made gasket? (love the jig you made, I may do it that way)._____________"Commander, say hello to Cricket!" - KN
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The Car Quest stuff ( the one on the right) failed on me. It just never seemed to set right. The new ones I made out of the Permatex labeled stuff (the one on the left). It seemed to harden allot better, I did pizza tonight and it came threw with flying colors. Sorry for being unclear.
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nice but why not just install a ruthland?
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Hi mike, I just like the idea of the silicone gasket, it seems like it will stay allot cleaner. If this one doesn't work Ill give up on it and go to the Rutland. I really think I just got a bad batch of silicone.
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These are the diameters I used for the gasket, it fit perfectly on the large.
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Bear 007 wrote:The Car Quest stuff ( the one on the right) failed on me. It just never seemed to set right. The new ones I made out of the Permatex labeled stuff (the one on the left). It seemed to harden allot better, I did pizza tonight and it came threw with flying colors. Sorry for being unclear._____________
"Commander, say hello to Cricket!" - KN
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I am attempting using this technique and I am having an issue. Some of the gasket is sticking to the mdf, leaving me a less than perfect gasket. I will be able to even it out once I install and burn off the mdf by adding some more Permatex, but before continuing to remove it I want to get some advice. The product was cured 24 hours, not a minute more. I have cut a razor blade the size of the gasket width, but its not ideal. I guess I could dig in the mdf with it but that would render my mold useless for the future (could be acceptable but not ideal). Any other ideas?Quebec - Canada
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High res pictures to see better what is happeningQuebec - Canada
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I would coat the mold with epoxy, let it cure before using it as a mold. Then apply some release agent in the mold - silicone oil or WD-40 (just a tiny bit).
______________________________________________I love lamp.. -
I wanted to limit chemicals and it seemed to work fine for bear. Maybe next time. But what now?Quebec - Canada
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Btw, I plan to burn all the mdf with a looftlighter and apply some more permatex to seal the holes.Quebec - Canada
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Maybe burn it off with the looftlighter not installed, and put the ugly side under and the nice side on top?Quebec - Canada
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Bjorg said:I wanted to limit chemicals and it seemed to work fine for bear. Maybe next time. But what now?Bjorg said:Maybe burn it off with the looftlighter not installed, and put the ugly side under and the nice side on top?
______________________________________________I love lamp.. -
What is a gasket?
"Entrepreneurs are simply those who understand that there is little difference between obstacle and opportunity, and are able to turn both to their advantage."
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michigan_jason said:What is a gasket?
______________________________________________I love lamp.. -
I'm sorry your having such a hard time Bjorg, after experimenting with these a few times I now leave them in the mold til they feel firm to the touch, it usually takes two or three days. I've only made them in MDF a couple of times, but I did use a release agent made for silicone, I really didn't think it did much because the MDF just sucked it in. I now do them in plastic molds , its a lot easier, but they take longer to dry.
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Bear, how have they held up for you?
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Thanks for the input Bear. I will let it cure further and will use plastic in the future.They sell plastic boards at hardware stores? Any link? Did you use a release agent on the plastic as well? If so, any link to that product?Quebec - Canada
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My large has survived about a year and a half of Friday night pizzas, my small has been on for almost a year now, no problems. I really don't do any clean burns on my large because of the pizza cooks, my small on the other hand has to have one at least once a year. I roached one a couple of cleanings ago but it did survive the last one.
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I ended up digging in the mdf to release the gasket. I have a 3mm thick layer of mdf on it. I have glued the nice surface side down on the egg with Permatex to ensure proper adhesion.Once it is cured, I plan on burning the layer of cardboard. Any suggestions? Looftlighter (heats at 1112 f so I would have to be careful and do it from a distance with movement) Fire up the egg at 650 f (max resist temp according to product sheet is 700 f) and let it do the job? I do not want to melt the gasket, just the cardboard stuck on it.My guess is fire up the egg at 650.Quebec - Canada
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@Bjorg if that doesn't work, put the plate setter in legs up - that seems to deflect heat right at the gasket. Rotate it 60 degrees half way through (legs are 120 degrees from each other).
______________________________________________I love lamp..
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