nub

Do I need to re-line this?

Recommended Posts

After reading this thread: https://www.iforgeiron.com/forum/65-gas-forges/?do=add, I contacted Wayne to get some metrikote, it arrived yesterday (Thanks Wayne!).

This is a Majestic Forge 3 burner "knife maker deluxe" and this is what I found when I got it opened up to paint with metikote. The Question is.. Do I need to re-line this forge given all the cracks in the insulation material, or just paint it?. It feels a bit like very dense polystyrene (Styrofoam) and is about 1 1/4" thick, 1 inch at top around burner ports. the bottom seems to be firebrick.

 

thanks

 

f7.thumb.jpg.1ec460536351d2e0ba415916b3fbee31.jpgf6.thumb.jpg.d0b7a699652261839b02890d1459618d.jpgf5.thumb.jpg.f23edde4a21b2f6a22aea85b488887ff.jpgf4.thumb.jpg.356c4d9ebe82e18c12caae9f965ffcd4.jpgf3.thumb.jpg.497c1f198afb6a67d01c95a8ca5da77b.jpgf2.thumb.jpg.3d02faa2b9f8b7428e3c4e987e0f3acb.jpgf1.thumb.jpg.44520c98c181e37693c9b86c1f282e3a.jpg

Share this post


Link to post
Share on other sites

Unfortunately, that forge us lined with ceramic wool boards; as in lots of money! I don't expect you will get more than empty platitudes for your protests, but who knows.

So, presuming you will have to help yourself; what know? Fortunately, there is a  very good glue for all things made with ceramic fiber; and that is silicate based rigidizer; even more fortunately, that consists of fumed silica in water, which you can buy from eBay, with free shipping too:D So, about twenty bucks and some care will bring your forge back to life.

BUT, do not forget to order Matricoat from Wayne, so as to protect that board from further bad news, and to save you a whole lot of money in wasted fuel, while it greatly extends the life of your board.

Oh yes; you need that ceramic board sealed with the Matricoat to protect your lungs, anyway.

There is a difference between silica and any other kind of glue; you need to let it dry, and then fire it before it will keep anything stuck together...

Share this post


Link to post
Share on other sites

I would just use the Metrikote to paint the  interior, paying particular attention to the cracks.  Metrikote, when mixed according to the instructions will absorb into the cracks and give you good results.  It is not a "glue" but will fill the voids.

Let me know when I can help you again.

Wayne.

Share this post


Link to post
Share on other sites

Fumed silica+water mixed to a paste consistancy.  Spread on andpush in to the cracks.  Wait 2 days then bring forge to a forging temp and hold for 10 minutes.  Then kiln wash (id recomend a thin layer of kastolite before kiln washing for further protection but it isnt necessary)

Share this post


Link to post
Share on other sites

Thanks for the Replies and help! Applied the metrikote yesterday evening. assuming 24 hour cure time, I can put the forge back together tonight and see what happens.

I really do appreciate all the help.

 

Share this post


Link to post
Share on other sites

That's what I was thinking. Ran it very low for about 10 minutes. hoping to get another 'low power' run in this evening for 15-20 minutes. that should make everything is dry and cured.

 

Share this post


Link to post
Share on other sites

good to know! probably will not get to full heat until weekend, having trouble getting everything aligned properly. 

also attached post-metrikote pic.

really appreciate the help; one of these days i’ll know enought to begin to ask semi-intelligent questions.

 

3B42F2D9-13F9-4768-AEEE-A5D36FC885AC.jpeg

Share this post


Link to post
Share on other sites

the fire brick the forge is sitting on? I wasn't going to they're just there to add some separation. forge site on fire bricks, the fire brick(s) sit on an old backhoe bucket.

Share this post


Link to post
Share on other sites

I covered everything with metrikote... about 4 coats. Didn’t fret the very top outside bits of fiber board. I figured/guessed That those bits didn’t need much as the forge lid would cover it up. Most of the metrikote on top went into the cracked part. But sides, bottom, and top (lid) got about 4 coats; the top bit of the sides got about 2 coats, except for the cracked parts which got a lot more. I used about a pint in total.

 

Share this post


Link to post
Share on other sites
On 2/18/2018 at 7:43 PM, WayneCoeArtistBlacksmith said:

I would just use the Metrikote to paint the  interior, paying particular attention to the cracks. 

Wayne, how is the Metrikote applied? Is it powdered and you mix it with water?

Share this post


Link to post
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.

Guest
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.