Plaster casting a ceiling rose / medallion, DIY without expensive casting products
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- Опубліковано 7 гру 2021
- Making a large ceiling rose ,rosette or ceiling medallion as they are called in America. The full process from sculpting the pattern in clay to casting in plaster without using silicone or polyurethane moulding materials. The design is a little quirky incorporating two green man faces with oak leaves but it is a long envisaged design that I wanted for our own house. The only real expense in the plaster of paris, I don't count the clay as that is re-usable, so it makes for a cheap DIY project that gives the results I was after. The process include making the mold /mould and using easily available materials for the mould release between the plaster mould and the finished plaster casting. It shows tips on mixing plaster of paris and the ratios to use as well as how the plaster hardening process works. The video ends with me fitting the finished ceiling medallion / rose. If anyone really likes the design let me know and I'll see if it's worth getting some made for sale.
0.00 Clay pattern modelling
1:08 Casting the mould /mold
4:42 Casting plaster on plaster mould
7:10 Second casting and demolding
8:40 Fitting the finished rose / medallion - Навчання та стиль
As a retired dental technician I can tell you they make a plaster release agent available at any dental supply house under denture materials .
Very very nice!!!! And yes, whatever you can teach, please make a video. Good to see you again after all these years.
Well done fella that's awesome work and easy to follow distructions
Well that was awesome.
Lovely work!
Thank you
awesome!
Thanks
Nice job Lad! Thanks For The Bow To Vud
We use lard
Excellent video, i have an old victorian house and am looking to add ceiling roses to all my rooms. I would very much like to see the video you made on the release agents or even just your recommendation on whats the best product to use.
Interesting !
Glad you think so!
it's gorgeous! what are you putting in the holes (looks like pencils?) to help with demolding? and what tool is that (and what is it doing)?
Yes pencils. They leave a couple of holes. Then I can squirt some high pressure air down using a "blower" on the air line from my compressor.
Excellent outcome! So how did it work out, expense-wise? I'm guessing there wasn't a lot of difference in price? ... but of course, getting a design that you like is worth a lot of money. Well done!
I think it was £18 for the 25kg of plaster and I got three castings out of it plus the mould. The Clay is reuseable and everything else I already had. If I was charging for my time experimenting and then doing it, it would be cheaper to pay for moulding silicon or similar.
Hi there. Great video👍 just wondered though, does the two coats of shellac have to go on the mould before every pour??
No the shellac seals the plaster and only needs doing the once.
@@idostuffcouk brilliant, thanks for the reply 👍
Did you end up selling this mold? It’s amazing and I’d love to buy one.
Thanks, you are the first to ask, so Iv'e no plans at the moment but will look in to it.
@@idostuffcouk I’m shocked I’m the 1st to ask. If you do end up making and selling them please let me know b/c I’ll share on a dark academia decor group I’m in…I think they’ll love it.
🌟 Promo-SM.