If I pour this into wood, would it stick? I am trying to fill holes and place rocks and have the plaster hold the rocks like a mosaic.

I think you would be better off sticking the rocks in with something like caulking or E6000 glue. Not sure the cement would hold and it was quite expensive. You can get caulking in brown or grey to blend with the wood colour for any areas that show. Just a suggestion.

When formed into say, a 4” flat stone, how many will this container make? Starting small before committing fully to larger bag!

I have the 5 inch round mold from happy dotting company. I think this bag is going to make 3 rocks if I am lucky. Ive already made two and the bag is almost empty :(

When molded into a rock, are these strong or do they break easily?

I’ve made many in molds and had no problems. I haven’t dropped one but would believe mine are strong enough to hold up. Love painting on them and friends like them.

Is the same than hydrocal?

Not sure, have only used Ultracal 30

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Ultracal 30 Gypsum Cement 2.5 lbs - Plaster - For Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail

Ultracal 30 Gypsum Cement 2.5 lbs - Plaster - For Mold Making and Casting, Ideal for Latex Molds! Takes Excellent Detail

Product ID: 211907566

Details

Brand
USG
Colour
Clear
Item Form
Powder
Item Package Quantity
1
Package Information
Bag

🎨Ultra-fine detail capture

💧Waterproof finish

⚖️2.5 lbs lightweight powder

588.95 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎭 Mold your masterpiece with Ultracal 30 — where detail meets durability!

TRUSTED QUALITY - USG brand reliability for professional-grade results
LIGHTWEIGHT POWER - 2.5 lbs of premium gypsum for easy handling and mixing
PRECISION PERFECT - Captures every intricate detail for flawless molds
WATERPROOF DURABILITY - Ensures your casts stand the test of time and moisture
VERSATILE COMPATIBILITY - Ideal for latex molds and a variety of casting projects

Ultracal 30 Gypsum Cement is a 2.5 lbs powder plaster designed for mold making and casting, especially compatible with latex molds. Renowned for its excellent detail capture and waterproof finish, it delivers professional-grade precision and durability for artists and craftsmen.

Specifications

ASIN	B01EK5BRPW
Best Sellers Rank	#1,832,954 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,086 in Sculpture Molding & Casting Products #8,328 in Candy Making Supplies
Brand	USG
Brand Name	USG
Colour	Clear
Container Type	Bag
Country of Publication	USA
Item Form	Powder
Item Package Quantity	1
Item Weight	1.13 kg
Manufacturer Part Number	Ultracal30
Material	Gypsum
Material Type	Gypsum
Model	Ultracal30
Other Special Features of the Product	Excellent Detail Capture
Special Feature	Excellent Detail Capture
Specific Uses For Product	Craft, Model
UPC	821079268708
Unit Count	1.00 Count
Volume	1100 Cubic Centimetres
Water Resistance Level	Waterproof

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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588.95 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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