If you are following this to cast something, you may want to put some sort of mold release on the plaster mother mold before pouring the second half. Plaster will stick to naked plaster and you're gonna have a bad time if you don't use a release.
Great tutorial! The only issue is that Rachel Whiteread does not cast like this. She casts the negative space around or inside objects without building silicon moulds. For example if she was casting a wardrobe, she would simply lay it down and after securing any holes/cracks, pour plaster inside then remove the wooden shell by either using the release agent she had applied (thus no need for silicon) or simply breaking the wood.
Hi Tegan, We used T20 silicone with a T6 catalyst, which sets the silicone in 24 hours (T6 is optional). We used this kit: tiranti.co.uk/products/t20-silicone-rubber-t6-catalyst-1-05kg-kit/
Sorry if it's a silly question, but what kind of clay is used here? I can figure out the other materials ok, just not sure about the clay component! Any suggestions would be very much appreciated! And thank you so much Tate for this wonderful resource
The first silicone pour should be fully cured before you pour the second. Also there is a release agent you can spray/brush on to the first section that will help it separate.
@@electrictwilight Jesmonite Alternative Everything would be just perfect but Jesmonite doesn’t have an official distributor in the US, and you can’t directly purchase it from their official website. On Etsy and other marketplaces, though, a standard package of AC100 will cost you around $90-$370 and not everyone is ready to invest so much in a hobby. Jesmonite has 2 active parts: a liquid resin and a composite plaster. If you’re looking for an alternative it can be resin with some kind of plaster (it makes the piece very durable), just resin, or regular quick-set cement mixed with water. Here are some Jesmonite AC100 alternatives: If I would choose one Jesmonite alternative - Polycell Quick Set Cement! Eco Composite Kit - comes with different colors so you can create terrazzo too! Colorberry Jesmonite Casting Compound Specialplaster’s SP201 acrylic polymer Tiranti’s Plaster Polymer liquid + alpha basic plaster Aqua Resin Clear casting resin Quick set cement, like Polycell Quick Set Cement + water (1 part water : 3 parts cement) Plaster of Paris + water USG plaster for moldmaking Molding Powder by Casting Keepsakes Quick-set cement will be the quickest to set (around 10 min, while Jesmonite is 25 min). Plaster of Paris would be quite hard to work with for molding, it doesn’t flow like Jesmonite or cement, but still doable. The plaster will be also lighter than Jesmonite and you will need less Plaster to make the same amount of pieces. If you’re a beginner don’t start with Plaster, but you can try it out later for sure. Don’t be afraid of how pigment looks with wet cement - you may think that there will be no color, but just follow the instructions and wait until it’s cured.
If you are following this to cast something, you may want to put some sort of mold release on the plaster mother mold before pouring the second half. Plaster will stick to naked plaster and you're gonna have a bad time if you don't use a release.
Great tutorial! The only issue is that Rachel Whiteread does not cast like this. She casts the negative space around or inside objects without building silicon moulds. For example if she was casting a wardrobe, she would simply lay it down and after securing any holes/cracks, pour plaster inside then remove the wooden shell by either using the release agent she had applied (thus no need for silicon) or simply breaking the wood.
Was looking for this comment. This video just shows how to make a plaster copy, not the negative space. I lacks the poetry of Whitereads work.
This is a great heads up. Thank you internet person.
it's very important that you add silicon release before doing the second half !
otherwise the plaster nor the silicon is going to open after
This is the best most easy to follow casting tutorial, thank you for this!
Also should you coat the plaster with a non stick agent when pouring the second half plaster on it? I saw u didn't mention doing that in the video
Check the link in the description of the video and go to step 5, i think it will answer your question.
Tate you're in my head, just the video I was looking for!
I just wish I had studio space to try this and many other things.
Super cool video and process!!
This is amazing !! what silicon did you use// where did you get it from ??
Hi Tegan,
We used T20 silicone with a T6 catalyst, which sets the silicone in 24 hours (T6 is optional). We used this kit: tiranti.co.uk/products/t20-silicone-rubber-t6-catalyst-1-05kg-kit/
Sorry if it's a silly question, but what kind of clay is used here? I can figure out the other materials ok, just not sure about the clay component! Any suggestions would be very much appreciated! And thank you so much Tate for this wonderful resource
lovely! waiting is the key.
Great!
(Though, I have no idea how anyone can eat the bruise on a banana.)
That is so beautiful
Where do you buy the clamps from?
I assume by plaster she means plaster of paris ?
How does the 2nd silicone not just glue to the 1st one?
The first silicone pour should be fully cured before you pour the second. Also there is a release agent you can spray/brush on to the first section that will help it separate.
Good. but forgot the release on the silicone! hope people don't follow this too closely, but a nice introduction.
What is Jasminite (?)
Jesmonite is a mix of gypsum and acryllic that's really easy and clean to use. Finishes almost like ceramic.
@Michael Pearson I use it regularly now I love it :)
Girl is getting her potassium!
SHE ATE THE BROWN PART OF THE BANANA DEAR GOD
what in the actual fuck is Jesmonite? can someone in America suggest an alternative material please?!?!
It's plaster with resin added.
@@electrictwilight Jesmonite Alternative
Everything would be just perfect but Jesmonite doesn’t have an official distributor in the US, and you can’t directly purchase it from their official website. On Etsy and other marketplaces, though, a standard package of AC100 will cost you around $90-$370 and not everyone is ready to invest so much in a hobby.
Jesmonite has 2 active parts: a liquid resin and a composite plaster. If you’re looking for an alternative it can be resin with some kind of plaster (it makes the piece very durable), just resin, or regular quick-set cement mixed with water.
Here are some Jesmonite AC100 alternatives:
If I would choose one Jesmonite alternative - Polycell Quick Set Cement!
Eco Composite Kit - comes with different colors so you can create terrazzo too!
Colorberry Jesmonite Casting Compound
Specialplaster’s SP201 acrylic polymer
Tiranti’s Plaster Polymer liquid + alpha basic plaster
Aqua Resin
Clear casting resin
Quick set cement, like Polycell Quick Set Cement + water (1 part water : 3 parts cement)
Plaster of Paris + water
USG plaster for moldmaking
Molding Powder by Casting Keepsakes
Quick-set cement will be the quickest to set (around 10 min, while Jesmonite is 25 min). Plaster of Paris would be quite hard to work with for molding, it doesn’t flow like Jesmonite or cement, but still doable. The plaster will be also lighter than Jesmonite and you will need less Plaster to make the same amount of pieces. If you’re a beginner don’t start with Plaster, but you can try it out later for sure.
Don’t be afraid of how pigment looks with wet cement - you may think that there will be no color, but just follow the instructions and wait until it’s cured.
ruclips.net/video/IM2jt7-ChQQ/видео.html