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 Soft Flex 00-35
✔ Very Flexible, Skin Safe
✔ Great for masks, robotics and dolls, etc.
✔ Colorless cloudy
✔ Shore (A) 00-35 (Very Very soft)
✔ Low shrinkage (<0.1%)
✔ 6-8 minutes working time
✔ Mixing ratio: 100: 100€ 39,95 € 33,02 Excl. tax
✔ Very Flexible, Skin Safe
Compare
✔ Great for masks, robotics and dolls, etc.
✔ Colorless cloudy
✔ Shore (A) 00-35 (Very Very soft)
✔ Low shrinkage (<0.1%)
✔ 6-8 minutes working time
✔ Mixing ratio: 100: 100Silicone Addition Colorless 5 (very soft)
✔ Flexible, Strong
✔ Translucent
✔ Shore (A) 5 (Very soft)
✔ Low shrinkage (<0.1%)
✔ 30 minutes working time
✔ Mixing ratio (Weight) 100: 100€ 28,95 € 23,93 Excl. tax
✔ Flexible, Strong
Compare
✔ Translucent
✔ Shore (A) 5 (Very soft)
✔ Low shrinkage (<0.1%)
✔ 30 minutes working time
✔ Mixing ratio (Weight) 100: 100Silicone Addition Transparent 15 Normal
✔ Flexible, Strong
✔ Transparent
✔ Shore A 15 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10€ 24,50 € 20,25 Excl. tax
✔ Flexible, Strong
Compare
✔ Transparent
✔ Shore A 15 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10Silicone Addition Transparent 40 Normal
✔ Flexible, Strong
✔ Transparent
✔ Shore A 40 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10€ 24,50 € 20,25 Excl. tax
✔ Flexible, Strong
Compare
✔ Transparent
✔ Shore A 40 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10Silicone foam Closed Cell 2
✔ Foam factor 2
✔ Hardness Shore C 12
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 9 minutes
✔ Curing time 4 hours@25oC
✔ Density 0.54 g/cm³€ 35,- € 28,93 Excl. tax
✔ Foam factor 2
Compare
✔ Hardness Shore C 12
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 9 minutes
✔ Curing time 4 hours@25oC
✔ Density 0.54 g/cm³Silicone Addition Colorless 50 (hard)
✔ Flexible, Strong
✔ Translucent
✔ Shore (A) 50 (Hard)
✔ Low shrinkage (< 0.1 %)
✔30 minutes working time
✔ Mixing ratio by weight: 100:100€ 28,95 € 23,93 Excl. tax
✔ Flexible, Strong
Compare
✔ Translucent
✔ Shore (A) 50 (Hard)
✔ Low shrinkage (< 0.1 %)
✔30 minutes working time
✔ Mixing ratio by weight: 100:100Silicone Elastosil M 4601 A/B
✔ Flexible, Strong, Red-Brown
✔ Good resistance to Resins
✔ Shore (A) 28 (Medium Hard)
✔ Low shrinkage (<0.1%)
✔ 90 minutes working time
✔ Mixing ratio (Weight) 90:10
✔ Suitable for tin casting
✔ Food safe€ 39,95 € 33,02 Excl. tax
✔ Flexible, Strong, Red-Brown
Compare
✔ Good resistance to Resins
✔ Shore (A) 28 (Medium Hard)
✔ Low shrinkage (<0.1%)
✔ 90 minutes working time
✔ Mixing ratio (Weight) 90:10
✔ Suitable for tin casting
✔ Food safeSiliconen Culinair®
✔ Flexible, Strong, White
✔ FDA Approved and TÜV Certified
✔ Shore (A) 22
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time
✔ Mixing ratio (Weight) 100: 100€ 38,95 € 32,19 Excl. tax
✔ Flexible, Strong, White
Compare
✔ FDA Approved and TÜV Certified
✔ Shore (A) 22
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time
✔ Mixing ratio (Weight) 100: 100Silicone Addition Colorless 25 (average hardness)
✔ Flexible, Strong
✔ Translucent
✔ Shore (A) 25 (average hardness)
✔ Low shrinkage (< 0.1 %)
✔30 minutes working time
✔ Mixing ratio by weight: 100:100€ 28,95 € 23,93 Excl. tax
✔ Flexible, Strong
Compare
✔ Translucent
✔ Shore (A) 25 (average hardness)
✔ Low shrinkage (< 0.1 %)
✔30 minutes working time
✔ Mixing ratio by weight: 100:100Silicone Addition Pink 10
✔ Flexible, Strong
✔ Pink
✔ Shore (A) 10 (Soft)
✔ Low shrinkage (<0.1%)
✔ 40 minutes of working time
✔ Mixing ratio (Weight) 100: 100€ 36,25 € 29,96 Excl. tax
✔ Flexible, Strong
Compare
✔ Pink
✔ Shore (A) 10 (Soft)
✔ Low shrinkage (<0.1%)
✔ 40 minutes of working time
✔ Mixing ratio (Weight) 100: 100Stensil ECO 70 Blue
✔ Kneadable silicone, Strong, Blue
✔ Shore (A) 70
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100€ 21,- € 17,36 Excl. tax
✔ Kneadable silicone, Strong, Blue
Compare
✔ Shore (A) 70
✔ Low shrinkage (< 0.1 %)
✔ 90 Seconds working time @ 20°C
✔ Mixing Ver. (Weight)100:100Silicone Addition Clear 0 Supersoft Set
✔ Firm Gel, Clear
✔ Suitable for potting
✔ Shore (A) 0 (Gel)
✔ Low shrinkage (<0.1%)
✔ 50 minutes of working time
✔ Mixing ratio. (Weight) 100: 100€ 106,17 € 87,74 Excl. tax
✔ Firm Gel, Clear
Compare
✔ Suitable for potting
✔ Shore (A) 0 (Gel)
✔ Low shrinkage (<0.1%)
✔ 50 minutes of working time
✔ Mixing ratio. (Weight) 100: 100- Pay later with Klarna
- 30 Days return period!
- Advice from real Experts
HTV platinum curing silicone
Premium HTV Platinum Silicone: FDA 21 CFR 177.2600 compliant, Colorless and easy to pigment. Shore A 40,60,80. Ideal for food, and industrial applications. High durability, temperature resistance, and chemical resistance. Perfect for versatile uses.
€ 31,46 € 26,- Excl. tax
Premium HTV Platinum Silicone: FDA 21 CFR 177.2600 compliant, Colorless and easy to pigment. Shore A 40,60,80. Ideal for food, and industrial applications. High durability, temperature resistance, and chemical resistance. Perfect for versatile uses.
CompareSilicone foam Closed Cell 3 - Spreadable
✔ Foam factor 3
✔ Spreadable
✔ Hardness Shore C 2-50
✔ Flame retardant UL94-HB
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 3 minutes
✔ Curing time 50 min @ 60°C
✔ Density 0.352 g/cm³€ 272,92 € 225,55 Excl. tax
✔ Foam factor 3
Compare
✔ Spreadable
✔ Hardness Shore C 2-50
✔ Flame retardant UL94-HB
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 3 minutes
✔ Curing time 50 min @ 60°C
✔ Density 0.352 g/cm³Silicone Addition Green 30 Set
✔ Flexible, Strong
✔ Green
✔ Shore (A) 30 (Hard)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time
✔ Mixing ratio (Weight) 100: 100€ 31,50 € 26,03 Excl. tax
✔ Flexible, Strong
Compare
✔ Green
✔ Shore (A) 30 (Hard)
✔ Low shrinkage (<0.1%)
✔ 60 minutes working time
✔ Mixing ratio (Weight) 100: 100Silicone Addition Transparent 15 Fast
✔ Flexible, Very fast, Strong
✔ Transparent
✔ Shore (A) 15 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 2 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10€ 24,50 € 20,25 Excl. tax
✔ Flexible, Very fast, Strong
Compare
✔ Transparent
✔ Shore (A) 15 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 2 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10Silicone Addition Gel 840 Water Clear
✔ Gel, Very Clear, Shock Absorbent
✔ Suitable for potting
✔ Shore (OO) 0 (Gel)
✔ Low shrinkage (<0.3%)
✔ 80 minutes of working time
✔ Mixing ratio (Weight) 100: 100€ 26,95 € 22,27 Excl. tax
✔ Gel, Very Clear, Shock Absorbent
Compare
✔ Suitable for potting
✔ Shore (OO) 0 (Gel)
✔ Low shrinkage (<0.3%)
✔ 80 minutes of working time
✔ Mixing ratio (Weight) 100: 100Silicone foam Closed Cell 5
✔ Foam factor 5
✔ Hardness Shore C 7
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 2 minutes
✔ Curing time 1 hours
✔ Density 0,175 g/cm³€ 34,- € 28,10 Excl. tax
✔ Foam factor 5
Compare
✔ Hardness Shore C 7
✔ Closed cell structure
✔ Mixing ratio (Weight) 100:100
✔ Processing time 2 minutes
✔ Curing time 1 hours
✔ Density 0,175 g/cm³Silicone Addition Thixo A
✔ Thickener for all addition silicones.
✔ Makes addition silicone spatulable/ brushable
✔ 1 component
✔ Add up to 4%€ 6,85 € 5,66 Excl. tax
✔ Thickener for all addition silicones.
Compare
✔ Makes addition silicone spatulable/ brushable
✔ 1 component
✔ Add up to 4%Elastosil RT 620
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Main application: Making printing pads, food contact (FDA/ BfR compliant).€ 49,95 € 41,28 Excl. tax
Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Compare
Main application: Making printing pads, food contact (FDA/ BfR compliant).Silicone Addition Clear 25
✔ Flexible, Crystal Clear
✔ Suitable for potting
✔ Shore A 25 (Medium Hard)
✔ Low shrinkage (<0.1%)
✔ 130 minutes of working time
✔ Mixing ratio (Weight) 100: 100€ 102,92 € 85,06 Excl. tax
✔ Flexible, Crystal Clear
Compare
✔ Suitable for potting
✔ Shore A 25 (Medium Hard)
✔ Low shrinkage (<0.1%)
✔ 130 minutes of working time
✔ Mixing ratio (Weight) 100: 100Silicone Addition Transparent 40 Fast
✔ Flexible, Very fast, Strong
✔ Transparent
✔ Shore (A) 40 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 2 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10€ 24,50 € 20,25 Excl. tax
✔ Flexible, Very fast, Strong
Compare
✔ Transparent
✔ Shore (A) 40 (Adjustable)
✔ Low shrinkage (<0.1%)
✔ 2 minutes working time (Adjustable)
✔ Mixing ratio (Weight) 100: 10Silicone Addition SkinForm
✔ Pasty, Splashable, Skin-friendly
✔ Light pink
✔ Shore (A) 22
✔ Low shrinkage (<0.1%)
✔ 10 minutes working time
✔ Mixing ratio. (Weight) 1: 1€ 54,- € 44,63 Excl. tax
✔ Pasty, Splashable, Skin-friendly
Compare
✔ Light pink
✔ Shore (A) 22
✔ Low shrinkage (<0.1%)
✔ 10 minutes working time
✔ Mixing ratio. (Weight) 1: 1Silicone foam Open Cell 6
✔ Foam factor 6
✔ Hardness Shore C 4
✔ Open cell structure
✔ Mixing ratio (Weight) 100:100
✔ Working time 2 minutes
✔ Curing time 2 hours
✔ Density 0.193 g/cm³€ 34,08 € 28,17 Excl. tax
✔ Foam factor 6
Compare
✔ Hardness Shore C 4
✔ Open cell structure
✔ Mixing ratio (Weight) 100:100
✔ Working time 2 minutes
✔ Curing time 2 hours
✔ Density 0.193 g/cm³

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.