Silicone Molds for Plaster and Plaster Impressions - Perfect Results Guaranteed Discover why silicone molds are the ideal choice for plaster and plaster impressions . Our professional silicone collection offers the perfect properties for creating high-quality plaster reproductions, from fine artwork to industrial plaster parts. Why Silicone is Perfect for...
Silicone Elastosil Wacker M 4601 has a good resistance to casting resins (in particular, polyurethane) and low shrinkage. Very suitable for making strong, flexible and non greasy molds. These silicones are ideal for prototyping. Elastosil M 4601 is a two...
Elastosil M 4644 is a transparent 2-component silicone with excellent resistance to casting resins. With the Elastosil M 4644 you can make molds with a long lifespan. Particularly suitable for casting resins such as epoxy and polyurethane. This variant sweats...
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.Main application: making molds for concrete castin., food contact (FDA/ BfR compliant). outstanding resistance to concrete very good flow fast and non-shrink cure at room temperature which can be accelerated considerably...
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature. Main application: Silicone surface for printing rollers, making molds for casting low-melting metal alloys. Food contact (FDA/ BfR compliant). Very good flowability and self-deaeration Fast and non-shrink cure at room...
Pourable, addition-curing RTV-2 silicone rubber, especially suitable for all molds of models with extensive undercuts. Excellent flowability and self-deaeration High tear strength Low hardness (Shore A 28) Mixing ratio of 1:1 for straightforward processing Fast and non-shrink cure at room...
Condensation-curing, castable, 2-component silicone rubber. Main application: Making cost effective molds, especially for casting various casting resins. very good flowability and self-deaeration low Shore A hardness (approx. 25) excellent tear strength high elongation and flexibility outstanding chemical resistance to attack...
Semsil HTV Platinum Silicone Top Quality HTV Platinum Silicone – Your Ultimate Solution for Versatile Applications! Are you in need of high-performance HTV (High Temperature Vulcanized) silicone that meets the stringent requirements of the FDA 21 CFR Section 177.2600? Look...
Castable, Addition curing, 2 component silicone rubber that vulcanizes at room temperature. Main application: mold making, encapsulation of electrical and electronic components, coating, engineering production molded parts • Easy to process due to low viscosity• Fast and shrink-free curing at...
Condensation-curing, castable, 2-component silicone rubber. Main application: Making cost effective molds, especially for casting various casting resins very good flowability and self-deaeration Shore A hardness (approx. 37) excellent tear strength high elongation and flexibility outstanding chemical resistance to attack by...
ELASTOSIL® C 1200 A/B has been specially developed for the professional production of reusable vacuum bags for the production of composite parts. Due to its shear thinning behavior it is self-levelling, but does not run off vertical surfaces. The medium...
Condensation-curing, castable, 2-component silicone rubber. Main application: Making cost effective molds, especially for casting various casting resins. very good flowability and self-deaeration low Shore A hardness (approx. 25) excellent tear strength high elongation and flexibility outstanding chemical resistance to attack...
good flow ability and self-deaeration proper tear strength universal hardness (26 Shore A) easy to meter and mix due to 1 : 1 ratio perfect and non-shrink cure at room temperature which can be accelerated considerably by the application of...
Silicone Molds for Plaster and Plaster Impressions - Perfect Results Guaranteed
Discover why silicone molds are the ideal choice for plaster and plaster impressions . Our professional silicone collection offers the perfect properties for creating high-quality plaster reproductions, from fine artwork to industrial plaster parts.
Why Silicone is Perfect for Plaster
Excellent Release: Silicone has natural non-stick properties, allowing plaster casts to come out of the mold effortlessly without damage or cracking.
Flexibility for Undercuts: The flexible properties of silicone allow for the perfect molding of complex shapes with undercuts, something that is impossible with rigid molds.
Detail reproduction: Silicone captures even the smallest details, from fingerprints to textures, making your plaster casts a perfect reproduction of the original.
Durability: Our silicone molds can handle hundreds of plaster casts without loss of quality, making them perfect for both one-off projects and series production.
Ideal for Our Porcelain Plaster
Our silicone molds are specifically designed for use with our porcelain plaster —a high-quality plaster known for its fine texture and smooth finish. Combining our silicone molds with porcelain plaster produces exceptional results for:
Art objects and sculptures
Decorative ornaments
Architectural details
Prototypes and models
Restoration projects
Also Perfect for Acrylic One Applications
In addition to plaster, our silicone molds are also ideally suited for Acrylic One (A1) systems . The chemical resistance of our silicone makes them perfectly compatible with acrylic resins, allowing you to choose between:
A1 Acrylic Resin - For transparent and colored casts
A1 ATP Powder - For filled systems with increased strength
Acrylic Resin Color Paste - For creating colored objects
Most Suitable Silicones from Our Collection
For Plaster Casts - Top Recommendations:
🏆 Elastosil M 4630 - The absolute favorite for plaster work • Shore A 28 hardness – perfect balance between flexibility and strength • Excellent resistance to concrete and plaster • Good self-ventilation for bubble-free molds • FDA certified for food-safe applications
🥈 Cenusil M 825 - Ideal for complex shapes • Shore A 28 hardness with high tear strength • Excellent fluidity for detailed finishing • Mixing ratio 1:1 for easy processing • Perfect for undercuts and complex geometries
🥉 Elastosil RT 625 - For fine details • Shore A 25 hardness – extra flexible • Low viscosity for perfect detail reproduction • Transparent end result • Excellent tear strength
Application areas Plaster & Silicone Moulds
Art & Culture:
Reproduction of historical artifacts
Sculptures and carvings
Masks and face prints
Decorative reliefs
Architecture & Construction:
Plaster ornaments and moldings
Restoration of historical elements
Decorative facade elements
Ceiling rosettes and cornices
Industrial & Prototyping:
Product prototypes
Models for presentations
Test components
Small series of industrial components
Processing Tips for Optimal Results
✓ Temperature: Work at room temperature (18-25°C) for best results ✓ Degassing: Use vacuum degassing for bubble-free molds ✓ Release agent: Usually not necessary, but if in doubt, use a thin layer of soapy water ✓ Curing time: Respect the full curing time for optimal properties
Need professional advice? Our team of silicone specialists is happy to help you choose the perfect combination of silicone and plaster for your project. Contact us at info@siliconesandmore.com
