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Jesmonite AC100 is an acrylic mineral resin designed for decorative casting. Versatile and easy to use, it’s ideal for safely creating decorative objects and design pieces.
Jesmonite® AC100 is a composite material based on an acrylic binder and mineral fillers, recognized for its material quality and dimensional stability. It offers an alternative to plaster and concrete, and is particularly appreciated for its versatility and ease of use. Formulated without solvents or VOCs, Jesmonite® is a friendly resin solution, ensuring safe and controlled handling, suitable for both creators and professionals.
Thanks to its optimized setting time and good resistance to impact and fire, Jesmonite® AC100 is perfectly suited for manufacturing decorative objects with clean lines and controlled shapes. It fully embodies a contemporary and trendy aesthetic, highly valued by designers, creative studios, and makers, while ensuring consistent reproducibility from one project to another.
A complete range of compatible additives and auxiliary products significantly expands the material’s aesthetic and technical possibilities. The resulting finishes (metallic, marbled, terrazzo, or mineral look effects) offer perfect homogeneity across the entire surface, allowing great creative freedom in piece design.
Small kits are available in the online store, making it easy to start any decorative or technical project. For larger volumes or specific needs, contact us by email to receive a personalized quote. All additional information, tips, application advice, and updates are available on our dedicated page.
Jesmonite® AC100 is designed for decorative casting and the production of small to medium series design pieces. It can be used for casting into silicone molds or reinforced with fiberglass fabrics for decorative panels or architectural decor elements.
Common Applications:
Candle holders
Vases, pots
Trinket trays, coasters, decorative trays
Jewelry, accessories
Design objects and furniture
Decorative cladding
Theater and cinema decor
Jesmonite® consists of two components:
A mineral base (gypsum powder or selected minerals)
An acrylic binder
Once mixed, these two elements create a fluid, easy-to-pour cream.
Easy to use
Formulated without solvents or VOCs
Fast setting time
Fire Resistance – Class O
Good abrasion and impact resistance
Excellent mechanical resistance
Tools clean with water
Jesmonite® AC100 is designed for simple and controlled application. Following these steps ensures homogeneous, resistant, and surface-defect-free pieces.
100 g liquid
250 g powder
In the mixing pot, first add the liquid, then the powder. Mix with a flat spatula or the Jesmonite mixer until a smooth, lump-free paste is achieved.
Pour a small amount of the mixture into the silicone mold. Coat the mold walls with Jesmonite using a brush to capture fine details. Complete filling by pouring the rest of the mixture in a thin stream. Lightly tap the mold to help release air.
Working time is generally 15 minutes, but it depends on the ambient temperature: ideal temperature: 18 to 22 °C. Avoid drafts and high temperatures.
Prepare only the necessary quantity.
Demolding is usually possible 15 minutes after the material has fully set. Handle the piece carefully during the first hour to avoid any mechanical stress.
After hardening, the surface can be sanded, protected, or treated according to its intended use (sealer, matte or glossy varnish).
Mixing ratio (by weight): 100 g liquid for 250 g powder
Setting time at 18 °C: 15 to 20 minutes
Natural color: cream
Dry density: approx. 1,745 kg/m³
Setting expansion: 0.15 %
Young’s Modulus: 5 to 6 MPa
Fire resistance: Class O
Storage: Powder should be kept dry, between 5 °C and 25 °C. Liquid binder containers must remain hermetically sealed to prevent water evaporation and film formation on the surface.
To calculate the required Jesmonite® quantities, select the relevant range, then choose to calculate based on an empty mold or an object already cast in Jesmonite.
If calculating based on a mold, place it on a scale, fill it with water, and enter the quantity into the calculator. If calculating based on a cast piece, weigh the piece and enter the information into the calculator. This will give you the quantity of liquid and powder needed to make your part.
Jesmonite® AC100 allows for a wide variety of decorative effects through the addition of pigments, mineral fillers, or inclusions. Terrazzo, marbled, or stone-look effects can be achieved in a wide range of colors and compositions.
For large pieces, Jesmonite AC100 can be reinforced by lamination with fiberglass fabrics.
This process improves mechanical resistance while maintaining lightweight, rigid, and durable panels, suitable for decorative furniture and decor elements.
Depending on the final use and exposure environment, pieces made with Jesmonite AC100 can be protected with suitable surface treatments.
A sealer limits porosity, while matte or glossy varnishes ensure lasting protection.
These protections are particularly recommended for candle holders, high-traffic surfaces, or outdoor applications.
Retarder: to increase working time
Thixotrope (thickener): to adjust mixture viscosity
Sealer: to reduce porosity and limit absorption
Colortec Varnish (matte): for a matte, waterproof finish
Colorfresh Varnish (gloss): for a glossy, waterproof finish
Quadriaxial fiberglass: for panel lamination and reinforcement
6 mm chopped glass fibers: for reinforcing small parts
12 mm chopped glass fibers: for reinforcing large parts
