No, this is an oil based clay. It can be softened with heat but it will never harden like a Polymer clay. You might be looking for something more along the lines of Sculpey, which can be hardened by baking it in the oven.

Can a plaster mold be used with this clay

Yes. You can make a sculpture out of this clay and make a plaster mold off of it. I would spray the clay surface with some Krylon crystal clear acrylic spray first to seal the clay and help the clay to come out of the mold easier. also...try to remove the clay out of the new plaster mold while it is still warm. Don't let the clay become hard again and you will have an easier time of cleaning out the clay from the mold. Hope this helps. Greg

When will the new HARD-Premium Grade style of Monster Clay be available via Amazon for purchase?

“New HARD clay” I wasn’t aware of Hard Clay, maybe it’s a new item coming out. So maybe the new HARD clay will dry. You will have to read the description or go to Monster Makers.com for details.

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Monster Clay Premium Grade Modeling Clay - Medium - (18lb CASE) - Brown - 18 pounds - Modeling

Monster Clay Premium Grade Modeling Clay - Medium - (18lb CASE) - Brown - 18 pounds - Modeling

Product ID: 4262074

Details

Age Range (Description)
Adult
Brand
EZEAOR
Color
Brown
Educational Objective
Dexterity
Included Components
Oven-Safe
Material
Clay

🔥Oven-safe containers for versatile sculpting

🧪Sulfur-free, non-toxic formula for safe pro use

⚖️18lb bulk case for marathon creativity

€ 472.22

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Description

🎨 Sculpt like a pro, create like a monster!

SAFE COMPATIBLE - Sulfur-free and non-toxic, perfect for platinum silicone molds and endless reuse.
BULK CREATIVE POWER - 18 pounds of premium clay to fuel your next masterpiece without interruption.
PRO GRADE FLEXIBILITY - Medium consistency oil/wax base offers unmatched plasticity and smooth sculpting flow.
HEAT READY CONVENIENCE - Each tub comes in an oven-safe container, letting you melt and reshape on demand.
MORE CLAY LESS WEIGHT - Lower density means 25% more clay per pound—maximize your value and creative output.

Monster Clay Premium Grade Modeling Clay is an 18lb sulfur-free, oil/wax based sculpting medium favored by professional creature designers worldwide. It features medium consistency with high plasticity, comes in oven-safe containers for easy melting and reuse, and offers 25% more clay per pound due to its lower density. Non-toxic and compatible with platinum silicone molds, it’s the ultimate choice for detailed, reusable modeling.

Specifications

ASIN	B008UZLGIW
Age Range Description	Adult
Best Sellers Rank	#248,328 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #966 in Pottery & Modeling Clays
Brand Name	EZEAOR
Color	Brown
Customer Reviews	4.8 4.8 out of 5 stars (95)
Educational Objective	Dexterity, Shape Recognition
Included Components	Oven-Safe Container
Item Dimensions	7.48 x 7.48 x 12.01 inches
Manufacturer	Monster Makers
Manufacturer Part Number	MCP-20
Material Type	Clay
Model Name	Monster Clay
Model Number	MCP-20
Number of Items	1
Other Special Features of the Product	Non-Toxic
Recommended Uses For Product	Modeling
UPC	686603385562
Unit Count	288 Fluid Ounces

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 472.22

Duties & taxes included

In stock

Sold byAmazon FinlandDelivered 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 Finland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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