How to cast plaster/gypsum stone, plaster casting hand mix technique
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- เผยแพร่เมื่อ 1 มี.ค. 2014
- There is many different casting plasters and plaster additives available on the market. Today we'll use general purpose casting plaster available at local hardware store and plain water.
Property mixed gypsum sets to high consistency, great strength and perfect surface details without air pockets product.
We use mixing bucket, gypsum and water.
Hand mix technique will give you a maximum amount of working time with minimum air pockets on product surface without stone vibration.
Add pre-measured cold water into the bucket. For GlobMarble MS 871 mold we'll need 2 litters ( 64oz) of water.
Sift the plaster to the water until the water stop absorbing the plaster. Live it for 3-5 minutes and let the plaster to be fully saturated by water.
Mix plaster toughly to remove all lumps.
Shake the mold
To speed up the process stone can be removed from mold in 20-40 minutes. - แนวปฏิบัติและการใช้ชีวิต
Awesome video! Thank you! Like!
love it great mix (music too)
How to paste the wall with any material
Nice
Thanks!
Just a tIp: Add 0.3% of Carboxilate in water from the weight of the gipsum... Smooth mass, no bubbles and very very strong pieces... Thanks!!
Great advice, thanks!
It's like a น้ำ of int of peace of angel
Can the plaster stones be used for exterior applications? Or will you have to substitute the plaster for concrete?
Plaster absorb moisture. I would recommend to use plaster for interior projects. Concrete for exterior. You can also search special plasters for exterior usage in case if it has to be a plaster....
Got it. Thanks for the info. Going to be purchasing some molds here pretty soon to finish a exterior retaining wall. Do you all make custom size molds by chance?
We are mold making company. We can make any custom made mold, but custom made mold pretty expensive. We can send you our mold catalog, you may find something that may match your requirements. Send all your requests to sales@globmarble.com
Thanks will do.
Did the gypsum board mix anything up to speed?
We'll post new gypsum casting video by the end of this or next week.
Can i add super plasticizer on this mix?
You don't need to reduce a water usage in plaster. Stop adding plaster to water when plaster stops absorbing the water.
How would you paint it? If I want to use water colors do I need to seal the plaster first and with what? If I were to use color pigments how do I go about it? Thanks for a great video.
Plaster is very poures material, it absorb liquid pigment very easy. You'll have to spend some time and paint gypsum stone carefully. If you will seal the plaster color will not go trough the sealer. Usually we seal plaster after it has been colored. You can use water based stains or mixer with water oxide pigments to color plaster stone.
@@GlobMarble Thanks So Much.
I wonder why then the likes of Rachel Dein use water color. Do you think that's the reason why she adds concrete to the plaster? Thanks
N HW I have no idea who is Rachel Dein, but there is nothing wrong in different applications and methods. Everything depends to your preferences.
how to apply that into the wall? is it the same as using concrete?
yhamjs Installation method is the same as concrete panel or stone installation, but i prefer to use Pre-Mixed Joint Compound instead of cement or glue.
Thank you so much!
is this the same as crystacal ? are the the same price as well ?
Sorry, i have no idea what the crystacal is. Use castable gypsum, brand doesn't make a big difference. Plaster of Paris available everywhere, and it's relatively inexpensive, that the reason why we selected the material.
@@GlobMarble Oh its just a very hard casting plaster Thanks for replying buddy
ps great vid
I'm sure that hard gypsum will work the same way, test it and you'll see result. Usually we use Hydrocal if we're need a very hard gypsum.
How heavy is it, once the stone is set?
5 lbs/2.5 kg approximately
how long until set up time?
Few minutes. it depends to how do you mix and temperature inside the room.
how does it look after install? plain white?
With regular gypsum- yes. You could pigment the gypsum before casting it and also color it after it ha been casted.
Superplistesizer is used to create a strong gypsum panel
how is this sealed?
The same way as any other stone.
how i do water proof gypsum , any one know?
You can use sealers over the gypsum to water proof.
@@GlobMarble
thanks, but I want a material mixed with the gypsum mixture before solidification and solidifies together
,
( like rapid wall gypsum system)
I would recommend you to contact your Gypsum manufacturer and get their advise.
Can you ship the mold to Saudia Arabia😭
Yup! We ship world wide. You can order through the website- Globmarble.com
or email us at sales@globmarble.com
There should be s specific weight of gypsum to 1 litre of water. For consistency between tiles you should have a fixed ratio.
I thought it was dangerous to do it without gloves because of the chemical reaction
SilosMOVIE . There is no chemical. It's a plaster mixed with water.
Everything is chemicals, and drying plaster is a chemical reaction. It may not be dangerous though, I don't know!
SilosMOVIE it not safe as an habit He’s a little incaring
I need this mold please
its GlobMarble MS 871 mold globmarble.com/concrete-stones/concrete-stone/mosaic-stone-molds/
So no need of fiber reinforcement?
You didn't need fiber reinforcement especially if you use plasticizer, but in case if you want, you can add fibers.
@@GlobMarble how much plastercizer per litre of water?
@@Z-add Superplasticizer is calculated by gypsum weight. Anywhere between 0.25% to 2% of total gypsum weight is good. The more you add, the stronger it will be.
MySchizo Buddy what plasticizer are used to create a strong gypsum panel
@@Zapzons i think polycarboxylic is used.
Lose the distracting and irritating music !!!
It looks like the copyright nazis took care of the irritating music. :-)
Where is sound?
TH-cam has removed it because of copyrights :(