Silicone to make molds for pouring concrete or cement
Professional Silicone for Concrete Molds - High Quality Discover our extensive collection of silicone molds for concrete —specially developed for creating strong, durable molds for concrete, cement, and other mineral materials. This high-quality silicone offers the perfect combination of flexibility and strength for professional results. Why Choose Our Silicone Concrete...
This hardener works on all condensation silicones. For standard use, the condensation B 5% catalyst is recommended. Processing The silicone Condensation 20, you can easily mix by hand or machine. Mix the A and B component carefully and in the...
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...
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...
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...
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...
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...
Low shrinkage of <0.1%. Very liquid so self-deaerating Transparent Shore A 50 stable but flexible Suitable for stable but flexible moulds Siliconen Addition Colorless 25 are ideal to make stable flexible moulds. Description The Silicone Addition Colorless 25 is a...
Low shrinkage of <0.1%. Very liquid so self-deaerating Transparent Shore A 50 stable but flexible Suitable for stable but flexible moulds Siliconen Addition Colorless 50 are ideal to make stable flexible moulds. Description The Silicone Addition Colorless 50 is a...
This silicone has a good fluidity and gives great detail while still remaining strong.The silicone Condensation 20 A + B is a 2-component (poly-condensation curing) castable molding silicone which cures at room temperature. Silicone C 20 -A + B are...
This silicone has a good fluidity and gives great detail while still remaining strong.The silicone Condensation 20 A + B is a 2-component (poly-condensation curing) castable molding silicone which cures at room temperature. Silicone C 20 -A + B are...
This silicone has a good fluidity and gives great detail while still remaining strong.The silicone Condensation 20 A + B is a 2-component (poly-condensation curing) castable molding silicone which cures at room temperature. Silicone C 20 -A + B are...
This silicone has a good fluidity and gives great detail while still remaining strong.The silicone Condensation 20 A + B is a 2-component (poly-condensation curing) castable molding silicone which cures at room temperature. Silicone C 20 -A + B are...
These silicones have good fluidity, provide a lot of detail and have a high tensile strength and are soft. The silicone Condensation 35 is a 2-component cast silicone that hardens at room temperature. Excellent for casting molds for detailed and...
These silicones have good fluidity, provide a lot of detail and have a high tensile strength and are soft. The silicone Condensation 5 is a 2-component cast silicone that cures at room temperature. Excellent for casting molds for fragile objects...
The silicone condensation DC 3481 with + hardener DC 3081 R is a condensation-crosslinking 2-component casting silicone that hardens at room temperature. The silicone has good fluidity, is suitable for the finest details and is characterized by a very high...
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...
Silicone Addition QM 272 – High-Performance Mold Making Silicone Key Features Relatively high hardness for silicone rubber Low shrinkage <0.1% for dimensionally stable molds Excellent flowability and self-degassing during processing Suitable for rigid yet flexible molds Outstanding resistance to epoxy and...
This hardener works on all condensation silicones. This T21 hardener from Wacker makes the silicone more resistant to polyurethane and epoxy. This B component may also be mixed with other condensation B components to achieve a speed of your choice...
This hardener works on all condensation silicones and is especially intended for the Wacker M 4503 condensation silicones. The T-35 is easy to mix with the T-47 for shorter curing times. Processing The condensation hardening silicone can be easily mixed...
This hardener works on all condensation silicones. This T37 hardener from Wacker makes the silicone more resistant to polyurethane and epoxy. This B component may also be mixed with other condensation B components to achieve a speed of your choice...
This hardener works on all condensation silicones. This T40 hardener from Wacker, allows the normal condensation silicones to harden a little faster to a generally usable silicone rubber. This T40 can be used with all condensation hardening silicones and is...
This T 40 paste catalyst is primarily intended for the kneadable Wacker Elastosil M 1470. Processing The condensation hardening silicone can be easily mixed by hand. Mix the A and B components carefully and in the specified ratio. T40 mixture...
This hardener works on all condensation silicones. This hardener is extremely fast. If you want to work very quickly, we recommend using this special B component: Wacker T47 (1-2%). This B component may also be mixed with other condensation B...
This hardener works on all condensation silicones. This T51 hardener from Wacker makes the silicone more resistant to polyester. This B component may also be mixed with other condensation B components to achieve a speed of your choice with the...
Professional Silicone for Concrete Molds - High Quality
Discover our extensive collection of silicone molds for concrete —specially developed for creating strong, durable molds for concrete, cement, and other mineral materials. This high-quality silicone offers the perfect combination of flexibility and strength for professional results.
Why Choose Our Silicone Concrete Molds?
Excellent chemical resistance to alkaline concrete mixtures
High tensile strength for long-term use without cracking
Optimal flexibility for easy demolding
Minimal shrinkage for accurate dimensions
Long lifespan - suitable for multiple waterings
Perfect detail reproduction – copies even the finest textures
Self-releasing - usually no release agent required
Flexible Polyurethane - The Wear-Resistant Alternative
For more wear-resistant applications, we also offer flexible polyurethane molds as an excellent alternative:
Superior wear resistance for abrasive concrete mixes and large series
Longer service life under harsh production conditions
Cost-effective for mass production (€8-20/kg vs €20-40/kg for silicone)
Faster processing time - short curing time
Repairable if damaged
Better resistance to oils, plasticizers and pigments
When to Choose Which Material?
Choose silicone for:
Decorative tiles with lots of relief and fine details
Color-sensitive applications
High temperatures or UV exposure
Complex or subtle products
Choose flexible polyurethane for:
Industrial mass production of paving stones/tiles
Budget-sensitive productions with higher wear and tear
Concrete with many pigments or additives
Large series with raw concrete mixtures
This document provides a brief overview of the advantages and disadvantages of silicone and polyurethane for WetCast.
This overview from Wacker gives a more technical difference between silicone and polyurethane molds for WetCast.
Applications and Benefits
Perfectly suited for:
Architectural concrete components
Decorative concrete elements
Precast concrete products
Artworks and sculptures in concrete
Industrial concrete molds
Technical Features
Our silicone for concrete molds is specially formulated to:
To be resistant to the high pH value of concrete (pH 12-13)
To provide excellent detail reproduction
Minimal adhesion to concrete for easy release
To be temperature resistant during the curing process (-60°C to +200°C)
For both professionals and hobbyists , our silicone and polyurethane molds offer the reliability and quality you need for perfect concrete molds. Available in various viscosities and curing times to meet your specific project needs.
All information is based on experience and offers no guarantees. Customers are responsible for testing their own suitability.
