top of page

Silicone Mold Making Rubber.

Room temperature curing RTV-2 silicone rubber,

Silastic-RTV-3483 silicone rubber for mold making.

Silastic® RTV 3483

Silastic® RTV 3483 mold making base and Curing agent Silastic 3083.

High strength silicone mold making rubber and catalyst suitable for detailed reproduction of figures, art objects and similar items.  

Siastic® RTV 3483 is a two-part material consisting of a base rubber when mixed with a catalyst cure at room temperature by condensation reaction.  A range of materials can be cast into the cured molds: plaster, polyurethane, wax, polyester and more.

Features and benefits:

  1. Outstanding release properties.

  2. High flowable and working time.

  3. Low hardness.

  4. High tear resistance.

  5. High elasticity for easy removal of complex replica parts.

Mix properties:

  1. Mix ratio (Base: Catalyst) 100:5

  2. Color: White

  3. Pot life: 90 minutes

  4. Curing time: 24 hours.

  5. Hardness shore (A): 13


Elastosil® 4511

Elastosil®4511 base mold making rubber and catalyst T24.

Elastosil® 4511 is pourable condensation curing, two components silicone rubber that cures at room temperature.  

Main application:

For making cost effective molds suited for casting polyester and polyurethane resin. 


  1. very good flowability and self-deaeration

  2. very low Shore A hardness (approx. 12)

  3. high tear strength

  4. extremely high elongation and flexibility

  5. outstanding chemical resistance to attack by polyester and polyurethane resins, mold life is significantly extended

Mix properties:

Color: White

  1. Mix ratio (Base rubber: Catalyst) 100:5

  2. Working time: 90 minutes.

  3. Curing time: 24 hours

  4. Hardness (shore A): 12

Elastosil-M-4630 mold making silicone rubber.

Elastosil® 4630 A/B

Elastosil®4630 base mold making rubber and catalyst part B.

Elastosil® 4630 A/B is a pourable, addition-curing, two-component silicone rubber that vulcanizes at room temperature. Main application: Making molds for concrete casting.

Mix properties:

  • Mix ratio(A:B) 100:10

  • Pot life: 90 minutes

  • Curing time: 12 hours

Food contact (FDA compliant


  1. very good flow.

  2. fast and non-shrink cure at room temperature which can be accelerated considerably by the application of heat.

  3. low Shore A hardness (approx. 28).

  4. high tear strength.

  5. excellent long-term stability of the mechanical properties of the vulcanizate

  6. outstanding resistance to concrete.

Specific features:

  1. Addition Curing.

  2. Excellent mechanical properties.

  3. FDA compliant.

  4. Flowable.

  5. Food-contact.

  6. Low viscosity.

  7. No chemical shrinkage.

  8. Resistance against casting resins.

  9. Resistance against concrete.

Wacker-silicone-rubber for mold making.

Wacker® Silicone rubber

Wacker® mold making silicone rubber.

Molds can be made with liquid silicone rubber and can be used for variety of applications. We are supplier Liquid of silicone rubber for mold making manufactured in Wacker Germany. We supply high strength, room temperature curing liquid silicone rubber for making flexible molds suitable polyurethane, polyester and epoxy resin casting.  Customized DIY mold you can easily make with our materials are:

  1. Designer candle making

  2. Designer candle making

  3. Garden furniture

  4. Concrete ornamental items.

  5. Artificial jewelry.

  6. Food contact items


1kg, 5 kg, 20 kg, 30 kg

Please feel free to contact us for any query.

bottom of page