Petrobond vs delft clay sand casting comparison.( melting copper wire asmr )

Hi everyone. in this video im trying some new way of casting and trying to compare it to petrobond sand. please let me no what you think
Hope you enjoy the video
If you did enjoy the video please check out my other videos link below
/ @meltingipswich
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[@donl4914]

That coin is Awesome!!!! The Delft clay didn't work out, but it's all a learning experience. Thanks for sharing, See you next time. 👍🏻👍🏻💯💯

[@meltingipswich]

Thank you 👍

[@SlyNation]

I am by no means an expert at casting, but that is Silica Clay. Real Delft clay is a deep reddish brown almost maroon in color and when compacted, you cannot see the grains unless you look closely. It looks just like a smooth clay when finished, but it is indeed just extremely fine-grained sand with some additives. Delft clay NEEDS air vents due to how well it compacts while petrobond usually does not unless it's a large item. Real Delft clay comes from The Netherlands which makes it expensive but give superior results if you need extremely fine details, so I guess its all about finding the right knock off. What you have there might work if you add a few vents but Ive never worked with Silica Clay before. Cant be that much different!

[@scotts4134]

Great comparison. Can you tell me why you didn't create any air vents? I thought you always needed them.

[@meltingipswich]

I forgot to be honest i should have put some in. When I come to use the delft clay next time it was solid so I had to throw it away.

[@timsmith9645]

Awesome copper bar's and coin thanks for sharing

[@meltingipswich]

Thank you 👍

[@timsmith9645]

You're welcome

[@dynomania]

Haha cool you have an owl there

[@meltingipswich]

Yeah there’s a video for that aswell thank you

[@ozzleoni6609]

Up to now I've only done bars, but after your video I'm ready for more complex object, like a piano maybe .jk. Excellent video.

[@meltingipswich]

😂🤣😂 it’s so nice when you castings come out nicely but when they don’t it can be very frustrating. Thank you for watching 👀

[@HunterValleyDan]

I know I'm late to the discussion, but... as per previous comment(s), that is not delft clay. Looks like some cheap and nasty knock-off. If you do manage to get some real delft clay, you must use air vents. It is denser than petrobond or green sand and needs the vents to allow the gases to escape in a controlled manner. Delft clay works very well. Professional jewelers have used it for many, many years to make intricate pieces. Get the real stuff and I'm sure you will see a big difference.

[@meltingipswich]

Thank you do you know where I can buy it from in the uk The stuff I had I’ve had to throw it away now as it dried out and when very hard

[@elvinhaak]

Too bad.... but I think the good thing with DC is that you just need to add moist/water a bit instead of chemicals (oké, other then H2O) to get it usable again. But it needs to be just at the right amount of moist.@@meltingipswich

[@Thewulf56]

The one coin turned out great. Maybe the delft clay needed to be mulled/mixed up a bit more, didn't look like it had a lot of strength, but that was hart to tell for sure in the video. To me it looks like the force of the copper pushed you sand out from the mold on the 2nd one, which is why it did what it did. Try putting some backer plates behind your sand and clamp it that way.

[@meltingipswich]

Yeah I’m going to give it another try soon I will use some different techniques and see what work. But to be honest I don’t think you can beat petrobond

[@Thewulf56]

@@meltingipswich Delft clay is supposed to be a bit finer for dental and Jewelry casting, and a bit more in price. PB is more than adequate for anything we do.

[@JsStack]

I was going to say the same thing about backing boards on the moulds. It does look like it was pushed out. Or, maybe add some vents. Lots of different things to try. Another thing I thought of is, does the clay have water in it? It might have dried out from the heat and compressed with the copper being poured in? Kind of iffy on that, but you never know. Great video none the less. Awesome job.

[@weldingbiker1]

I am so sorry to have suggested that to you. I will stand in a corner and behave. I forgot to say that chopping the clay is better than trying to sieve it and really compact it to bring out the details, as well as keep it in the warm or it goes hard. Sorry once again and thank you for making the video.

[@meltingipswich]

No problem. As I said in the video I’m not righting it off and will try again. I’ve had some good advice on the comments so I will be trying it again soon. Thank you 👍

[@CCordonBoer]

I work with Delft clay and I can tell you this: what you're calling Delft clay in this video is most certainly NOT Delft clay. Get your money back from whoever sold it to you as "Delft clay".

[@meltingipswich]

I’ve never worked with it before so wouldn’t have a clue but it’s all dried out now and I can’t use it again

[@lancelottavola9685]

@@meltingipswich this is not delft clay

[@lancelottavola9685]

yes,delft clay is very good for casting, this product in the video is other material,I get the same from a dealer and results are very bad,its a fake product that some sellers call delft clay to atract buyers.

[@GermanDarioCarte]

Excelente

[@meltingipswich]

Thank you

[@bizarro20daves]

Deflt clay has worked better for me than petrobond in the past. maybe try compressing more?

[@meltingipswich]

It was my first try with it. I’m not going to right it off and I will try again

[@bizarro20daves]

@@meltingipswich I've found it to be stickier and maybe not need the sifting step before like petrobond needs?

[@kensmapleleafretirement]

I like that casting of the coin very much, such great detail... Thanks...

[@meltingipswich]

Thank you 👍

[@PBRJOHN684]

With delft clay you really need to pack it into the Flask before you add whatever it is you moulding. once one side is complete the add the top half and continue to add the the delft clay. then you can add all your sprues and vents once you're happy with the moulding. Don't give up on it I practiced with the stuff, as for two years before going over to a petrobond and every so often I revert back back to the delft clay but unlike petrobond the delft clay will dry out.

[@meltingipswich]

Yeah I will learn how to use it and I’m not going to right it off just yet. I will try that way soon thank you 👍

[@PBRJOHN684]

@@meltingipswich If there is any help you want along with regards to the Delft clay just give me shout! 👍

[@meltingipswich]

@@PBRJOHN684 thank you

[@meltingipswich]

@@PBRJOHN684 how do I store it as it seen to dry out and also can I add anything like water to soften it up again

[@PBRJOHN684]

@@meltingipswich I tend to store it in an old roses tub, and if it does dry out add some two stroke motorcycle oil but you will have to brake it up back into a fine powder, just as like reusing petrobond sand.

[@solrwavz]

your delft clay doesn't look like mine, maybe it's the camera?

[@meltingipswich]

What do you mean. How different is it

[@solrwavz]

@@meltingipswich your delft clay looks brown, mine looks red? I don't know if there's different colors of dutch delft clay

[@nightraven9258]

Starting to see why I see people only use petrobond lol

[@meltingipswich]

Yeah I do prefer petrobond but I will give it another chance

[@danaedwards5464]

try try again

[@meltingipswich]

Absolutely