castable refractory

[david s]

Re: castable refractory

Fibreglass is way more durable and more widely used for casting moulds. But I hate working with the stuff.

[mr g]

Re: castable refractory

I like the way you're thinking. How much foam do you think I'll need? I've never worked with it before.

[ThisOldGarageNJ]

Re: castable refractory

once you have your first one cast,, can you fill it with expandable foam,, take it out then use that as a solid base form ? It could work on the outer surface as well, maybe ?

Mark

[MetalHead]

Re: castable refractory

Cool - I hope yours is last . Has anyone done this with HeatCast 40 ?

[mr g]

Re: castable refractory

Quick update with some photos - castable took a little longer to get delivered so this weekend should see us getting some serious work done. I've taken the first two pieces off the sand mould. They look pretty good but expect better results as we refine our process. I reckon by the tenth one it'll be beautiful.
Cheers for now.

[TheOldFox]

Re: castable refractory

this sounds awesome, cant wait for more photo's..

[diy]

Re: castable refractory

For this application standard dense castable refractory is suitable product.

[sonomacast]

Re: castable refractory

Excellent, can't wait. I was looking on the net to see how the comercial guys form the ovens. all I could find was a photo of the outer form (Steel with an open top for pouring) I have no idea what forms the inside or divides the segments. I would like something S shaped to form a male/female lip on the segments, this would be hard to form on the apex though, any ideas

[david s]

Re: castable refractory

Mr G,
Be careful, the castable refractory has a limited shelf life, about 6 months I'm told. Make sure you convert it to finished product asap this stuff is expensive.

[mr g]

Re: castable refractory

Sure thing Sonomacast. We're on the verge of ordering 4 tons of castable provided we can get the right price. There will be photos aplenty !! We should have a full dome cast this weekend. I'll put up some photos of the mould pieces and the forms.

Cheers
Mr G.

[sonomacast]

Re: castable refractory

could you post photos of the moulds, (everything please), cheers

[berryst]

Re: castable refractory

very cool
very fun to see the progress, way to go!

[ThisOldGarageNJ]

Re: castable refractory

great job,, looks excellent

[mr g]

Re: castable refractory

Thanks mate. The next entrance we did came out even better. We used a proper concrete vibrating tool and some outer forms. We have also made a couple of the dome pieces. Photos to follow after I remove them from the mould. They lift up ok so I don't expect any poblems.

[sonomacast]

Re: castable refractory

Brilliant, absoutly brilliant