Best Silicones for Acrylic Resin | Acrylic One, Jesmonite & A1 Acrylic Resin

Best Silicone for Acrylic Resin Molds - Acrylic One, Jesmonite & A1 Discover the best silicone for acrylic resin molds – perfect for use with Acrylic One, Jesmonite, A1 Acrylic Resin , and other acrylic resin systems. Our professional RTV-2 silicone is specially selected for optimal performance in acrylic resin...
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  • Huismerk - SAM B 5 - B component voor Siliconen Condensatie 5, 20 en 35 universeel

    Huismerk - SAMB 5 - B component for Silicone Condensation 5, 20 and 35 universal

    In stock

    €4,78€3,95

    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...

  • Wacker Elastosil RT 602

    WackerElastosil RT 602

    In stock

    €74,00€61,16

    Pourable, addition-cured, two-component silicone rubber that vulcanizes at room temperature. Main application:- Automotive electronics- Measuring and regulating, Sensor technology Application details- all-round potting compound- manufacture of cast articles Characteristics Mixing ratio: 9:1 mixing ratio Low viscosity: 3,500 mPa.s, good fluidity...

  • Wacker Elastosil RT 620

    WackerElastosil RT 620

    In stock

    €49,95€41,28

    Pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.Main application: Making printing pads, food contact (FDA/ BfR compliant). Food safe BfR compliant FDA compliant Fast curing Low viscosity Low Shore A hardness (ca. 17) High tear resistance ELASTOSIL-RT-620-AB-en-2022.06.28.pdf

  • Huismerk - SAM Siliconen Additie Kleurloos 5 (zeer zacht) Huismerk - SAM Siliconen Additie Kleurloos 5 (zeer zacht)

    Huismerk - SAMSilicone Addition Colorless 5 (very soft)

    In stock

    €28,95€23,93

    The Silicones A Colorless 5 is a 2-component (Platinum) addition curing silicone which cures at room temperature.  Because of the low shrinkage and very low hardness combined with good strength these silicones are suitable for mask making and for molds...

  • Huismerk - SAM Siliconen Additie Pink 10 Huismerk - SAM Siliconen Additie Pink 10

    Huismerk - SAMSilicone Addition Pink 10

    In stock

    €36,25€29,96

    Silicone A Pink 10 is a (platinum) addition curing 2-component casting silicone that vulcanises at room temperature. The silicone is quite fluid and characterized by a good tensile strength. The product is resistant to temperatures from -40°C to +280°C and is suitable...

  • Wacker Siliconen Additie Transparant 15 Normaal Wacker Siliconen Additie Transparant 15 Normaal

    WackerSilicone Addition Transparent 15 Normal

    In stock

    €24,50€20,25

    A high quality 2-component casting silicone. A fairly soft silicone with good tensile strength. Food-safe and skin-friendly.  These silicones are often used in prototyping because the original is visible in the silicone mold. This makes it possible to cut the...

  • Wacker Siliconen Additie Transparant 15 Snel Wacker Siliconen Additie Transparant 15 Snel

    WackerSilicone Addition Transparent 15 Fast

    In stock

    €24,50€20,25

    The Silicone Addition Transparent 15 Fast is a 2-component (poly-addition) pourable silicone which, very rappidly, cures at room temperature to a quite soft but strong rubber silicone. This is a Skin safe and food grade silicone! These silicones are often...

  • Wacker Siliconen Additie Transparant 40 Normaal Wacker Siliconen Additie Transparant 40 Normaal

    WackerSilicone Addition Transparent 40 Normal

    In stock

    €24,50€20,25

    The Silicone Additon Transparant Normal 40 is a 2-component (poly-addition) casting silicone which cures at room temperature to a strong rubber that is relatively hard. The silicones can also be used for food related materials, skin contact projects and even...

  • Wacker Siliconen Additie Transparant 40 Snel Wacker Siliconen Additie Transparant 40 Snel

    WackerSilicone Addition Transparent 40 Fast

    In stock

    €24,50€20,25

    The Silicone Addition Transparent are a very versatile 2-component (Platinum) Poly-addition pourable silicone which cures at room temperature. These silicones are quite liquid and the results provide a very high tensile strength. This is a skin safe and food grade...

  • Huismerk - SAM Siliconen Additie Yellow 25 Set Huismerk - SAM Siliconen Additie Yellow 25 Set

    Huismerk - SAMSilicone Addition Yellow 25 Set

    In stock

    €31,50€26,03

    This medium hard silicone can be used as a casting material. Suitable for fragile and detailed master models. Yellow Shore (A) 25 (medium hard) Quite liquid (self-deaerating) Relative / good resistance with respect to acid / aggressive substances Easy to...

  • Huismerk - SAM Siliconen Condensatie 20 A component Huismerk - SAM Siliconen Condensatie 20 A component

    Huismerk - SAMSilicone Condensation 20 A component

    In stock

    €9,95€8,22

    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...

  • Huismerk - SAM Siliconen Condensatie 20 universeel Set Huismerk - SAM Siliconen Condensatie 20 universeel Set

    Huismerk - SAMSilicone Condensation 20 universal Set

    In stock

    €13,50€11,16

    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...

  • Huismerk - SAM Siliconen Condensatie 20 voor Polyester Huismerk - SAM Siliconen Condensatie 20 voor Polyester

    Huismerk - SAMSilicone Condensation 20 for Polyester

    In stock

    €24,50€20,25

    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...

  • Last stock! Huismerk - SAM Siliconen Condensatie 20 voor PU en epoxy Huismerk - SAM Siliconen Condensatie 20 voor PU en epoxy

    Huismerk - SAMSilicone Condensation 20 for PU and epoxy

    In stock

    €24,50€20,25

    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...

  • Huismerk - SAM Siliconen Condensatie 35 A component Huismerk - SAM Siliconen Condensatie 35 A component

    Huismerk - SAMSilicone Condensation 35 A component

    In stock

    €9,95€8,22

    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...

  • Huismerk - SAM Siliconen Condensatie 5 A component- Zacht Huismerk - SAM Siliconen Condensatie 5 A component- Zacht

    Huismerk - SAMSilicone Condensation 5 A component - Soft

    In stock

    €9,95€8,22

    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...

  • Dow Corning Siliconen Condensatie DC 3481 Fast Dow Corning Siliconen Condensatie DC 3481 Fast

    Dow CorningCondensation silicone DC 3481 Fast

    In stock

    €33,50€27,69

    Good liquid (self-deairing) Easy to mix After curing strongly Low shrinkage (<0.3%) Colour White Non-Bleeding Relatively Fast Description  The silicone Condensation DC 3481 with the catalyst 3081 F is a professional 2-component (poly-condensation curing) castable molding silicone which cures at room...

  • Wacker T21 B component voor condensatie siliconen

    WackerT21 B component for condensation silicone

    In stock

    €6,05€5,00

    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...

  • Wacker T35 B component voor condensatie siliconen

    WackerT35 B component for condensation silicone

    In stock

    €5,88€4,86

    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...

  • Wacker T37 B component voor condensatie siliconen

    WackerT37 B component for condensation silicone

    In stock

    €5,95€4,92

    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...

  • Wacker T40 B component voor condensatie siliconen

    WackerT40 B component for condensatie silicone

    In stock

    €5,87€4,85

    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...

  • Wacker T40 Pasta B component voor condensatie siliconen

    WackerT40 Paste B component for condensation silicone

    Not in stock, please contact us.

    €25,24€20,86

    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...

  • Wacker T47 B component voor condensatie siliconen Wacker T47 B component voor condensatie siliconen

    WackerT47 B component for condensation silicone

    In stock

    €6,05€5,00

    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...

  • Wacker T51 B component voor condensatie siliconen

    WackerT51 B component for condensatie silicone

    In stock

    €6,05€5,00

    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...

Best Silicone for Acrylic Resin Molds - Acrylic One, Jesmonite & A1

Discover the best silicone for acrylic resin molds – perfect for use with Acrylic One, Jesmonite, A1 Acrylic Resin , and other acrylic resin systems. Our professional RTV-2 silicone is specially selected for optimal performance in acrylic resin casting, with excellent stretch, durability, and easy release properties.

🎨 Compatible with All Acrylic Resin Brands

Our silicone molds are suitable for all popular acrylic resin brands and systems:

✓ Acrylic One

Popular acrylic resin system for decorative applications, terrazzo, and art objects. Our silicone offers excellent release properties.

✓ Jesmonite

Eco-friendly acrylic resin composite for art and design. Ideal with our soft to medium silicone for detailed reproductions.

✓ A1 Acrylic Resin

Our own premium acrylic resin brand. Specially developed for optimal compatibility with our silicone molds.

✓ Other Brands

Also suitable for Crystal Cast, Polycraft, and other acrylic resin systems. Universally applicable.

💡 Why Silicone is Perfect for Acrylic Resin

Unlike polyurethane, epoxy, and polyester , which are aggressive to silicone molds, acrylic resin is very friendly to silicone . This means:

  • Long mold life - Hundreds to thousands of castings possible
  • No chemical attack - Acrylic resin does not attack silicone
  • Perfect detail reproduction - Even the finest details are reproduced
  • Easy to demould - Flexible silicone makes removal easy
  • No release agent required - Acrylic resin will not adhere to silicone
  • Suitable for fragile castings - Soft silicone protects delicate objects

🎯 Recommended Silicones for Acrylic Resin - By Application

Application Recommended Silicones Shore A Why?
Terrazzo & Coasters Silicone Addition Transparent 25 25 Medium hardness, good elongation, easy demolding
Jesmonite Art Silicone Condensation 20 20 Soft, flexible, protects delicate details
Acrylic One Decoration Silicone Addition Clear 25 25 Transparent, good detail reproduction, versatile
Small Details & Jewelry Silicone Addition Clear 10 10 Very soft, perfect detail reproduction, flexible
Large Castings & Trays Silicone Addition Transparent 40 40 Stronger, dimensional stability, large molds
Plant pots & vases Silicone Condensation 20 20 Good stretch, easy demolding, cost-effective

🔬 Addition vs. Condensation Silicones for Acrylic Resin

Addition Silicone (Platinum)

Premium quality for acrylic resin

  • Minimal shrinkage (<0.1%) - Perfect fit
  • Long lifespan - Hundreds of castings
  • No odor - Pleasant working
  • Transparent options - See bubbles
  • High detail reproduction - Finest details
  • Shore range - A 5 to A 50

Best for: Acrylic One, Jesmonite, professional applications, fine details

Condensation Silicone (Tin)

Cost effective for acrylic resin

  • Affordable - Good value for money
  • Easy to use - Beginner friendly
  • Good stretch - Flexible molds
  • Versatile - Widely applicable
  • Fast curing - Get started quickly
  • Shore range - A 5 to A 35

Best for: A1 Acrylic Resin, Large Molds, Cost-Effective Production, Beginners

📐 Shore Hardness Selection Guide for Acrylic Resin

The Shore A hardness determines how flexible or firm your silicone mold is. For acrylic resin castings, we recommend:

Shore Hardness Overview

Shore A 5-10 (Very Soft)
✓ Ideal for: Very delicate Jesmonite objects, fine jewelry, intricate undercuts
✓ Products: Silicone Addition Clear 5, Silicone Addition Clear 10
✓ Advantage: Maximum flexibility, protects fragile castings

Shore A 15-25 (Soft to Medium)
✓ Ideal for: Acrylic One terrazzo, Jesmonite art, decorative objects, coasters
✓ Products: Silicone Condensation 20, Silicone Addition Transparent 15-25
✓ Advantage: Perfect balance between flexibility and stability

Shore A 30-40 (Medium to Firm)
✓ Ideal for: Large trays, plant pots, vases, production molds
✓ Products: Silicone Addition Transparent 40, Silicone Condensation 35
✓ Advantage: Dimensional stability, suitable for large molds

Shore A 45-50 (Firm)
✓ Ideal for: Very large molds, industrial production, high volumes
✓ Products: Silicone Addition Colorless 50
✓ Advantage: Maximum stability, long lifespan

🎨 Popular Applications of Acrylic Resin

🏺 Terrazzo & Coasters

Create beautiful terrazzo coasters with Acrylic One or A1 acrylic resin. Use silicone molds Shore A 20-30 for perfect results and easy release.

🎨 Jesmonite Art

Create unique art objects with Jesmonite. Our soft silicone (Shore A 10-20) protects delicate details and makes demolding easy.

🌿 Plant Pots & Vases

Cast modern planters and vases with acrylic resin. Silicone Shore A 20-35 offers the perfect balance between flexibility and stability.

💍 Jewelry & Accessories

Create unique jewelry with acrylic resin. Very soft silicone (Shore A 5-15) provides perfect detail for small objects.

🍽️ Trays & Bowls

Create decorative trays with Acrylic One. Medium silicone (Shore A 25-35) provides dimensional stability for large molds.

🏠 Interior Decoration

From wall panels to decorative objects - our silicone is perfect for all acrylic resin interior projects.

✨ Benefits of Our Silicone for Acrylic Resin

  • Specially selected for acrylic resin - Tested with Acrylic One, Jesmonite and A1
  • Wide hardness range - Shore A 5 to 50 available
  • Addition and condensation options - For every budget and application
  • Transparent variants - See air bubbles during pouring
  • Long lifespan - Hundreds to thousands of castings
  • No release agent required - Acrylic resin will not adhere to silicone
  • Perfect detail reproduction - Even the finest textures are reproduced
  • Easy to use - Suitable for beginners and professionals
  • Expert advice - Personal support with product selection

📋 Processing Tips for Acrylic Resin in Silicone Molds

Optimal Results with Acrylic One, Jesmonite & A1

1. Mold Preparation
Make sure your silicone mold is fully cured (24 hours for addition, 16 hours for condensation). Clean the mold with soap and water as needed. No release agent needed!

2. Mixing Acrylic Resin
Follow the instructions for your acrylic resin brand (Acrylic One, Jesmonite, A1). Mix thoroughly but gently to minimize air bubbles.

3. Pouring
Pour slowly and in a thin stream to avoid air bubbles. For Jesmonite, use a brush to apply the first coat for the best detail.

4. Curing
Allow the acrylic resin to cure completely according to the manufacturer's instructions. Acrylic One and A1: usually 24-48 hours. Jesmonite: 24 hours.

5. Deformation
Gently bend the silicone mold to release the casting. Start at the edges and work toward the center. Soft silicone (Shore A 10-25) makes this easiest.

6. Mal Maintenance
Clean the mold with soap and water. Let it dry completely before reuse. Store in a cool, dry place out of direct sunlight.

🎓 Frequently Asked Questions - Silicone for Acrylic Resin

Can I pour Acrylic One into all silicone molds?

Yes! Acrylic One is compatible with all silicone molds. For best results, we recommend Shore A 20-30 for terrazzo and decorative objects.

Which silicone is best for Jesmonite?

For Jesmonite, we recommend soft to medium silicone (Shore A 10-25). Silicone Condensate 20 or Silicone Addition Clear 25 are popular choices.

Do I need release agent for acrylic resin?

No! One of the great advantages of acrylic resin is that it doesn't bond to silicone. No release agent is needed, which saves time and money.

How many castings can I make with a silicone mold?

With acrylic resin (Acrylic One, Jesmonite, A1), you can make hundreds to thousands of castings. Addition silicones last the longest, but condensation silicones also have a long lifespan with acrylic resin.

Addition or condensation silicone for acrylic resin?

Both work great! Additive silicone offers minimal shrinkage and a longer lifespan (premium choice). Condensation silicone is more cost-effective and easier to use (beginner-friendly).

💡 Expert Advice & Support

Not sure which silicone is best for your acrylic resin project? Our team of silicone specialists is happy to help!

  • ✓ Personal advice for Acrylic One, Jesmonite, A1 and other brands
  • ✓ Shore hardness selection based on your application
  • ✓ Choice between addition and condensation silicones
  • ✓ Processing tips and troubleshooting
  • ✓ Mold design advice for optimal results
  • ✓ Sample materials available for testing
  • ✓ Bulk pricing for professional users

📞 Contact Us

For personal advice on the best silicone for your acrylic resin project:

Email: info@siliconesandmore.com

More information: Visit our Information Center

Choose professional-quality silicone – perfect for Acrylic One, Jesmonite, A1 Acrylic Resin, and all other acrylic resin systems. Long lifespan, perfect detail reproduction, and expert support guaranteed.

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