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Silicone Condensation 20 (Medium Hard)

  • Silicone Condensation 20 (Medium Hard)
  • Silicone Condensation 20 (Medium Hard)
  • Silicone Condensation 20 (Medium Hard)

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  • Article code: S10086

✔ Flexible, Strong, Universal
✔ White, Good Fluid, Bleeding
✔ Shore (A) 23 ~ 28
✔ Low shrinkage (<0.3%)
✔ 100 ~ 120 minutes working time
✔ Mix ratio (Weight) 100: 2-5

€ 14,48
€ 11,97 Excl. tax

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Product description

Silicone Condensation 20 (Medium Hard)

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 excellently suited for the casting of eg cement, plaster, wax, soap, and many other casting materials.

For standard use, the condensation B 2% catalyst is recommended.

If you want to process polyester in these moulds, we recommend using the special B component: Wacker T51 (5%)

If you want to process epoxy or polyurethane in these molds, we recommend using the special B component: Wacker T21 (5%)

If you want to work very quickly, we recommend using the special B component: Wacker T47 (1-2%). This B component may also be mixed with the original or above B components to achieve a speed of choice with the properties of the above B components.

Processing 

The silicone Condensation 20, you can easily mix by hand or machine. Mix the A and B component carefully and in the specified proportion.

Condensation B = 2%, so on 100 grams of A you use 2 grams of B2.

T21 = 5%, so on 100 grams of A you use 5 grams of T21

T51 = 5%, so on 100 grams of A you use 5 grams of T51

T47 = 1-2%, so on 100 grams of A you use 1 to 2 grams of T47

You can use up to 0.5% less or more harder. If you use less hardener, curing takes longer and air bubbles have more time to escape. Make sure not to use too little hardener, because then the silicone may no longer cure (properly). With more harder the curing will go faster, so that the mold is ready sooner. The disadvantage is that the mold will also age earlier and have more shrinkage bag.

Process the mixture within the pot life (working time) and never make more than you can process within the pot life. Wait with de-moulding until it has completely hardened.

Note: Potlife (processing time) and demolding time are highly dependent on the mixing ratio and Humidity! When adding more silicone B (harder) or at higher humidity, the pot life and demolding time become shorter!

Smearing or brushing

If you wish to make a mold by using a brush or spatula you need to add a 3rd component (0.6% -2% Thixo C). Typically 1% will do the trick. Thixo C thickens the mixture and makes it possible to set up the silicone agains vertical surfaces. Please be aware that the mold in this case must be provided with a support cap. This support cap may consist of gypsum bandages or epoxy support cover or acrylic resin with glass fibre fabric.

Durability
Provided that the silicone is kept in a sealed package and stored cool and frost-free, the shelf life is at least 1 year.

Safety
Use splash goggles, suitable liquid-tight gloves, an apron and work in a well-ventilated area. See Safety Data Sheet for more information

Further important safety information:

H-CodeHazard Statements

H226 Flammable liquid and vapour.

H319 Causes serious eye irritation.

H332Harmful if inhaled.

H335 May cause respiratory irritation.

H371May cause damage to organs.

P-Code Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P233 Keep container tightly closed.

P243 Take precautionary measures against static discharge.

P271 Use only outdoors or in a well-ventilated area.

P280 Wear protective gloves/protective clothing/eye protection.

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P312 Call a POISON CENTER/doctor if you feel unwell.

P370+P378 In case of fire: Use water spray, extinguishing powder or carbon dioxide to extinguish.

P403+P235 Store in a well-ventilated place. Keep cool.

P501 Dispose of contents/container to waste disposal.

Documentation

Product Information Silicone Condensation 20

Manual One piece brush-on mould, brick slip

Manual Making a two piece mould

Manual Mould in one part, badge

En - Safety data sheet Wacker T INTL.pdf

EN - Safety data sheet Hardener B2.pdf

EN - Safety Data Sheet Wacker_Catalyst_T_51.pdf

EN - Safety Data Sheet Wacker_Catalyst_T_21.pdf

 

Specifications

Specifications for: Silicone Condensation 20 (Medium Hard)

  • Shore (A) 23~28
  • Color A Comp. White
  • Color B Comp. Clear
  • end Color White
  • cured density 1,24 g/cm3
  • View all specifications
  • viscosity mixture 25.000 mPa s
  • Mixing ratio A/ B 25:100
  • Working Time 100~120 minutes
  • Curing time 16~20 hours
  • tensile strength 43 Kg/cm2
  • extensibility 480%
  • tear Strength > 29,8 Kg/cm
  • Linear shrinkage<0,3%
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    ✔ White, Good Fluid, Bleeding
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