does it break easy? for example if I want to do trinket trays

This is stronger than plaster of Paris. You'll want to have the right ratio of powder to water based on your form/mold

Can I use this for Lost Wax casting?

I can not positively answer yes or no, but from what I do know, I really think the answer would be, yes. I have not used it for that, but I have viewed someone cast a piece of metal jewelry at a festival. The mold looked just like the plaster ceramics molds I make from this plaster. I didn't ask him. You can only use the mold once as it is shattered when it is thrown into a bucket of water to quench the heat from casting. It would be imperative that you have the proper centrifugal cast equipment / set up to make sure the metal reaches the very bottom while still liquid. Good luck.

Is this the same as hydro cal gypsum?

No. Hydrocal is a different mix. Same manufacturer though.

Could this be used for pouring into a mold and then firing in a Kiln?

No this is not for a kiln firing. In a mold usage it is fine, but only to be air dried.

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AMACO Pottery Plaster, 50 lbs.

Product ID: 48815949

Details

Age Range (Description)
Adult
Brand
AMACO
Color
white
Educational Objective
Creative Skill
Item Weight
50 pounds
Material
Ceramics

⏳30-minute quick set time

🎨holds ultra-fine detail

💧70% water mix for perfect consistency

E£ 38983

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Description

🎭 Mold your masterpiece before the clock runs out!

BULK VALUE PACK - 50 lbs of premium pottery plaster shipped in manageable 25 lb boxes for easy handling.
OPTIMIZED WATER RATIO - Mixes perfectly with 70% water by weight for smooth, lump-free consistency.
PRECISION MOLD MASTERY - Highly absorbent formula captures every intricate detail flawlessly.
DURABLE DUST FRIENDLY - Strong, long-lasting finish with minimal dust—safe for studio and classroom use.
FAST TRACK YOUR CREATIVITY - Sets in just 30 minutes to keep your projects moving at lightning speed.

AMACO Pottery Plaster is a professional-grade, quick-setting ceramic plaster designed for slip casting and mold making. It sets in 30 minutes when mixed with 70% water by weight, delivering a smooth, lump-free mix that captures fine details with high absorbency. This 50 lb pack offers durable, dust-minimized performance ideal for artists and educators seeking reliable, large-scale mold creation.

Specifications

ASIN	B06Y4D43W9
Age Range Description	Adult
Best Sellers Rank	#356,568 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #431 in Sculpture Modeling Compounds
Brand Name	AMACO
Color	white
Customer Reviews	4.6 4.6 out of 5 stars (146)
Educational Objective	Creative Skill, Dexterity
Item Dimensions	21 x 15 x 3 inches
Item Weight	50 pounds
Manufacturer Part Number	52803P
Material Type	Ceramics
Model Name	52803P
Model Number	52803P
Number of Items	1
Other Special Features of the Product	Quick-Setting
Recommended Uses For Product	Pottery
UPC	039672528031
Unit Count	800 Ounce

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E£ 38983

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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