Jump to content
I Forge Iron

Castolyte Pouring Twice?

Recommended Posts


I am casting my first forge with castolyte in a 30 gallon drum that i have converted to a forge. I made all the forms and prepared the castolyte and to my horror I found that i didnt have enough castolyte to finish the job. I can run to the store tomorrow but what i am wondering is if I can pour new castolyte on top of already dry castolyte and still have a good bond between the two pours.


Link to comment
Share on other sites

It's just a forge! Not the Taj Mahal. Wham, bam, thank you Mam! 30 gallon! Wow, you can make a pretty good forge in a 5 gallon bucket!

There is no other answer unless you want to knock it out and start over.

I trimmed off the bottom and top 4 inches or so, leaving the ribbed section in the middle for rigidity and to hold the castolyte in place. I will post a photo when done. The work area of the forge is essentially a 9" diameter circle that has been squared up on the bottom to make an arch providing a 9" floor for hard bricks if I want. The length is 18" and there is enough for three burners and a ceramic blanket inside if I want less volume and more heat. All of the inlet pipes for the burners are cast with a half an inch flare so I dont have to use flares in the forge. The roof and side walls are 4.5 inch thick castolyte.

Should be pretty impressive in heat. I think I might just use insulated fire brick for the doors though.
Link to comment
Share on other sites

Larry and Grant are on it - just put a little something in there to bind it all together and go for the second round - I've done it a number of times on casting furnaces - some times it's a little slap-dash but it'll hold heat and do what ya want.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...