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...
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Main application: making molds for concrete castin., food contact (FDA/ BfR compliant).
✔ Flexible, Strong
✔ Beige
✔ Shore (A) 70 (Hard)
✔ Viscosity 35,000 mPa s
✔ 60 minutes working time
✔ Mixing ratio by weight: 100:10
✔ Good resistance to resins
✔ Flexible, Strong, good resistance to pu and epoxy
✔ White, Good Fluid, Bleeding
✔ Shore (A) 23 ~ 26
✔ Low shrinkage (<0.3%)
✔ 120 minutes working time
✔ Mix ratio (Weight) 100: 5
✔ 3-4% dosage
✔ dry, stretchable result
✔ Can be used neat or mixed
✔ Low shrinkage (< 0.3%)
✔ Better resistance to PU and Epoxy
✔ Mixing ratio (Weight) 100:5
✔ Long processing time
✔ Very fast
✔ Low dosage
✔ Can be used neat or mixed
✔ Retain properties of other hardener at low dosage
✔ Low shrinkage (< 0.3 %)
✔ 5 minutes working time
✔ Mixing ratio (Weight) 100:2
✔ Flexible, Strong
✔ Beige
✔ Shore (A) 70 (Hard)
✔ Viscosity 35,000 mPa s
✔ 60 minutes working time
✔ Mixing ratio by weight: 100:10
✔ Good resistance to 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 by polyester and polyurethane resins, mold life is significantly extended
✔ Very good flowability and self-deaeration
✔ Low Shore A hardness (approx. 25)
✔ Excellent tear strength
✔ High elongation and flexibility
✔ Outstanding chemical resistance to attack by polyester and polyurethane resins, mold life is significantly extended
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Main application: making molds for concrete castin., food contact (FDA/ BfR compliant).
✔ 2% dosage
✔ Medium fast
✔ Can be used pure or mixed
✔ Low shrinkage (< 0.3%)
✔ Mainly used for Elastosil M 1470
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.
