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
Elastosil FX 28
€ 33,95 € 28,06 Excl. tax
✔ Safe to use on skin
Compare
✔ 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 effectZhermack SFX 00-30
€ 452,- € 373,55 Excl. tax
✔ Highly Flexible, Skin Safe
Compare
✔ Color Translucent
✔ Shore (A) 00-30 (Very Very Soft)
✔ Low Shrinkage (< 0.1 %)
✔ Processing Time (@ 23 °C) 25 min.
✔ Curing time (@ 23 °C) 70 minutes
✔ Viscosity (cP) 6.000
✔ Mixing ratio:Elastosil M 4370 A/B
€ 48,95 € 40,45 Excl. tax
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.
CompareElastosil M 4644
€ 47,50 € 39,26 Excl. tax
✔ excellent resistance to casting resins, such as polyurethanes and epoxies
Compare
✔ good fluid
✔ fast and shrink-free curing at room temperature
✔ Slightly oil-bleeding
✔ Shore A hardness (approx. 40)
✔ good transparency of the cured rubbeCenusil 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.
CompareElastosil RT 625
€ 79,07 € 65,35 Excl. tax
✔ Easy to process due to low viscosity
Compare
✔ 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 aELASTOSIL® C 1200 A/B
€ 453,66 € 374,93 Excl. tax
✔ Suitable for the production of reusable silicone vacuum bags.
Compare
✔ Fast curing at room temperature
✔ No chemical shrinkage
✔ Resistance to epoxy resins
✔ Resistance to polyester
✔ Two components 1:1
✔ blue / TransparentStensil ECO 50 Turquoise
€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Turquoise
Compare
✔ Shore (A) 50
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Elastosil M 4641
€ 599,- € 495,04 Excl. tax
✔ High-quality silicone from Wacker
Compare
✔ Fast and non-shrink curing at room temperature
✔Shore A 43
✔ Transparent
✔High tear strength
✔ Food safe (FDA)
✔ Excellent resistance to casting resins
✔ Very suitable for clear casting resStensil ECO 20 Orange
€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Sand
Compare
✔ Shore (A) 20
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Elastosil FX - Softener
€ 19,50 € 16,12 Excl. tax
✔Reduce the hardness of the silicone
Compare
✔ Works perfectly with Wacker FX silicone
✔ Softens to skin-like textures
✔ Never gets oilyElastosil RT 629
€ 68,07 € 56,26 Excl. tax
✔Antistatic surface
Compare
✔Good fluidity
✔High reactivity, even when large amounts of silicone oil are added
✔Fast and shrink-free curing at room temperature
✔Medium hardness (Shore A approx. 31)
✔Excellent mechanical properties- Pay later with Klarna
- 30 Days return period!
- Advice from real Experts
Elastosil FX - Slow
€ 25,95 € 21,45 Excl. tax
The Wacker Elastosil FX - Slow , can be used to slow the curing time of the Wacker Elastosil FX base rubber.
CompareElastosil FX Thixo
€ 25,95 € 21,45 Excl. tax
The Wacker FX Thixo is a thickener especially for the Wacker FX silicone. This makes the silicone thicker to pasty.
CompareElastosil FX - Fast
€ 146,- € 120,66 Excl. tax
✔ Accelerate the curing process of Wacker FX silicone
Compare
✔ Highly concentrated platinum solution
✔ Add drop by drop
✔ Very little needed

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.