CaribouForge Posted December 30, 2021 Share Posted December 30, 2021 I'm new to fire bricks in gas forges. Is it normal for the brick under the burner to partially melt or vitrify. I got my forge used and the brick in question was already heat damaged and upon firing the forge for more than a few minutes it becomes tacky. Quote Link to comment Share on other sites More sharing options...
Torin Posted December 30, 2021 Share Posted December 30, 2021 That sounds to me like someone used flux in it (borax). That can melt/dissolve firebrick. I use high-alumina kiln shelving in mine as a sacrificial base that can be removed and replaced when it has deteriorated enough. Quote Link to comment Share on other sites More sharing options...
CaribouForge Posted December 30, 2021 Author Share Posted December 30, 2021 That is a good possibility. Is there a trick to using flux around fire bricks without damaging them or is it just inevitable that they'll need to be replaced once and awhile? Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted December 30, 2021 Share Posted December 30, 2021 Fire brick are a disposable item, but we can prolong their life by using a sacrificial barrier like kiln shelf to protect them Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted December 31, 2021 Share Posted December 31, 2021 Note too that firebrick comes in a range of working temperature; without knowing the type it's sort of like saying: "Can I put 16 people in my vehicle?" Quote Link to comment Share on other sites More sharing options...
CaribouForge Posted January 1, 2022 Author Share Posted January 1, 2022 (edited) That's good to know. Unfortunately I know nothing about them other than they are fire brick but I'm strongly leaning towards them being the bottom shelf cheapies. They are the very porous gray ones if that really means anything. I have another one to use up once this one is to far gone then I'll see about getting some better ones. Thanks. Edited January 1, 2022 by Mod30 Remove excessive quote. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.