Addition curing silicone rubber
Silicones that cure with platinum catalyst. Very dimensionally stable and durable.
After curing, these silicones give a beautiful, rubbery / flexible result. Addition silicones have a shelf life of many years, do not shrink and come in various variations
Silicone foam Open Cell 7 - Spreadable
€ 272,92 € 225,55 Excl. tax
✔ Foam factor 7
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✔ Spreadable
✔ Hardness Shore C 5-10
✔ Flame retardant UL94-V0
✔ Open cell structure
✔ Mixing ratio (Weight) 100:100
✔ Working time 2 minutes
✔ Curing time 70 min @ 60°C
✔ Density 0.162 g/cm³WACKER SilGel® 612 A/B
€ 87,76 € 72,53 Excl. tax
✔ two-part, 1 : 1 mixing ratio
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✔ low viscosity
✔ rapid heat cure
✔ very low hardness (silicone gel)
✔ crystal clear
✔ pronounced inherent tack
✔ flame retardant, UL listed 94HBSilicone Addition Thixo A
€ 6,85 € 5,66 Excl. tax
✔ Thickener for all addition silicones.
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✔ Makes addition silicone spatulable/ brushable
✔ 1 component
✔ Add up to 4%Stensil ECO 20 Orange
€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Sand
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✔ Shore (A) 20
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Elastosil FX 20
€ 33,95 € 28,06 Excl. tax
✔ Safe to use on skin
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✔ Very good flow ability and self-deaeration
✔ Shore A 20
✔ Easy to meter and mix due to 1:1 ratio
✔ Short curing time at room temperature
✔ Translucent
✔ Easy to color with common colors for special effectElastosil M 4670
€ 281,75 € 232,85 Excl. tax
✔ High-quality silicone from Wacker
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✔ Fast and non-shrink curing at room temperature
✔ Shore A 55
✔ Food safe (FDA / BfR compliant)
✔ High tear strength
✔ Stable mechanical properties
✔ Excellent resistance to casting resinsStensil ECO 95 Blue
€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Blue
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✔ Shore (A) 95 (Hard)
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Elastosil RT 601
€ 125,78 € 103,95 Excl. tax
✔ Potting automotive and optical parts
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✔ Addition hardening
✔ Liquid
✔ Crystal clear
✔ Two-component 9:1
✔ Shore (A) 45Stensil ECO 30 Sand
€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Sand
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✔ Shore (A) 30
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Silicone Wound
€ 24,95 € 20,62 Excl. tax
✔ Flexible, Very Soft, Skin Friendly
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✔ Light skin color
✔ Shore (A) 5 (soft)
✔ Low shrinkage (<0.1%)
✔ 2 minutes working time
✔ Mixing ratio (weight) 100: 100Elastosil M 4644
€ 47,50 € 39,26 Excl. tax
✔ excellent resistance to casting resins, such as polyurethanes and epoxies
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✔ Moderately fluid
✔ fast and shrink-free curing at room temperature
✔ Slightly oil-bleeding
✔ Shore A hardness (approx. 40)
✔ good transparency of the curedPlastique Culinair® Fast
€ 47,04 € 38,88 Excl. tax
✔ Kneading compound, Strong, Blue
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✔ FDA Approved
✔ Shore (A) 40 (Hard)
✔ Low shrinkage (<0.1%)
✔ 100 Seconds of working time
✔ Mixing ratio. (Weight) 100: 100- Pay later with Klarna
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Elastosil FX 10
-6% Sale
€345,- € 325,- € 268,60 Excl. tax
✔ Safe to use on skin
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✔ Very good flow ability and self-deaeration
✔ Shore A 10
✔ Easy to meter and mix due to 1:1 ratio
✔ Short curing time at room temperature
✔ Translucent
✔ Easy to color with common colors for special effectCenusil M 825
€ 11.254,- € 9.300,83 Excl. tax
CENUSIL® M 825 A/B is especially suitable for all molds of models with extensive undercuts.
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€ 58,29 € 48,17 Excl. tax
✔ very good flow
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✔ fast and non-shrink cure
✔ medium Shore A hardness (A 37)
✔ high tear strength
✔ long-term stability
✔ outstanding resistance to common casting resinsElastosil FX 28
€ 33,95 € 28,06 Excl. tax
✔ Safe to use on skin
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✔ Very good flow ability and self-deaeration
✔ Shore A 28
✔ Easy to meter and mix due to 1:1 ratio
✔ Short curing time at room temperature
✔ Translucent
✔ Easy to color with common colors for special effectSilicone Addition Clear 25
€ 102,92 € 85,06 Excl. tax
✔ Flexible, Crystal Clear
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✔ Suitable for potting
✔ Shore A 25 (Medium Hard)
✔ Low shrinkage (<0.1%)
✔ 130 minutes of working time
✔ Mixing ratio (Weight) 100: 100Elastosil RT 602
€ 74,- € 61,16 Excl. tax
✔ All-round potting agent
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✔ Addition-hardening
✔ Liquid
✔ Good heat stability
✔ Very transparent
✔ Two-component 9:1
✔ Shore (A) 45Silicone foam Open Cell 6
€ 34,08 € 28,17 Excl. tax
✔ Foam factor 6
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✔ Hardness Shore C 4
✔ Open cell structure
✔ Mixing ratio (Weight) 100:100
✔ Working time 2 minutes
✔ Curing time 2 hours
✔ Density 0.193 g/cm³SAM Deadener 1000
€ 7,50 € 6,20 Excl. tax
✔ To soften platinum silicone
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✔ Cross-links in the silicone
✔ Very easy to use
✔ Powerful
✔ Not sweatingSilicone Addition Clear 5 (very soft)
€ 66,50 € 54,96 Excl. tax
✔ Flexible, Crystal clear
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✔ Suitable for potting
✔ Shore (A) 5 (Very Soft)
✔ Low shrinkage (<0.1%)
✔ 30 minutes working time
✔ Mixing ratio (Weight) 100: 100Elastosil RT 625
€ 79,07 € 65,35 Excl. tax
✔ Easy to process due to low viscosity
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✔ Fast and shrink-free curing at room temperature
✔ Low Shore A hardness (approx. 25)
✔ High elongation, excellent tensile strength
✔ Excellent tear strength
✔ Cured rubber is transparent aSilicone foam Closed Cell 3
€ 272,92 € 225,55 Excl. tax
✔ Foam factor 3
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✔ Hardness Shore C 2-50
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 3 minutes
✔ Curing time 50 minutes
✔ Density 0.352 g/cm³Silicone Addition Yellow 25 Set
€ 31,50 € 26,03 Excl. tax
✔ Flexible, Strong
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✔ Yellow
✔ Shore (A) 25 (Moderately Hard)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time
✔ Mixing ratio (Weight) 100: 100

What are Addition Hardening Cast Rubbers?
Addition-curing casting rubbers are a special class of silicone rubber that, after curing, deliver a beautiful, rubber-like, and flexible result. Here are some key features:
Curing: These silicones cure through a reaction with a platinum catalyst. This process ensures a stable and durable structure.
Flexibility: Addition-curing casting rubbers are highly flexible and can be easily deformed without losing their integrity.
Durability: They remain durable for many years and do not shrink after curing.
Applications of Addition-Curing Casting Rubbers:
Skin-Friendly: This type of silicone is often suitable for skin contact and does not shrink. Special versions can even be used as molds for food items like chocolate or cake.
Creative Uses:
- Create fun shapes for edible treats using chocolate.
- Craft silicone masks like a pro.
- Make your own seals or silicone liners.
- Create molds for miniatures or sculptures and more using this versatile platinum silicone!
Color Options: Clear and colorless variants can be beautifully tinted. Even white silicones can achieve a nice color effect.
Extra Fun Factor: You can also fill these silicones with glow powder, hollow glass beads, glitter, or magnetic powder for even more fun applications!
Do you have any further questions about addition-curing casting rubbers? We’re happy to assist! And don’t forget to consult our instructions to discover numerous ways to use silicone molds.