Liquid Silicone Rubbers

Epideco

£15.99 
SKU: Silicone 1kg

MSDS PAGES           

Estimate curing time:   At 25°C: 3-5H    

Pot life time 30 - 40 mins

Features:

Suitable for:


  • Two-part silicon rubber: flowable liquid silicon and tin catalyst.
  • Cures at room temperature within 3-5 hours.
  • An exceptional fluidity and good operability.
  • Good tensile and tear strength, low shrinkage.
  • High duplication times.
  • High elasticity for easy removal of complex replica parts


   

  Silicone rubber is used for making:

  • moulds of concrete stone, 
  • GRC, 
  • gypsum decoration, 
  • plaster ornaments, 
  • fibreglass products, 
  • polyester decoration, 
  • unsaturated resin crafts, 
  • polyresin crafts, 
  • polyurethane,
  • bronze,
  • wax,
  • candle,

  and similar products


Mixing Ratio

Specification



Mix by weight: 100% : 2%


1kg   (1kg Silicone - 0.020kg Catalyst)

2.5kg   (2.5kg Silicone - 0.050kg Catalyst)

5kg   (5kg Silicone - 0.100g Catalyst)




    Hardness (A°) 20

    Density ( g/cm3 )                 1.08

    Viscosity (mPas -25 ºC)        20000

    Tensile-strength (in MPa)  >4

    Elongation-break (%)           >500

    Retractility (%)                    0.25

      Shrinkage rate (%)               <0.25 



Base and catalyst use universal containers for various kit sizes and are supplied by weight, while the supplied containers may not be full, they will contain the correct amount of both base and hardener according to the listing. At point of packaging and dispatch lids may be taped to prevent damage or spillage during transportation.


 

Operation instructions

Step 1: prepare the original molds

Make your original molds perfect. fix it on a board. And fix the original mold on a board , then used four piece of board to enclose the original molds . 

Step 2: Take 100 G parts A and add 2G parts B and mix them evenly. 

*Notes: Mold making silicon rubber is a kind of flowing liquid ,it contains two parts. Part A is a kind of flowing white liquid and part B is the curing agent or catalyst .Pls follow the step strictly:

1. Weigh the two-part exactly by electronic weight. If not, for example, add too much catalyst, the operation time will be too fast to operate, which will cause inconvenience to operate. 

2. Mix part A and part B evenly. Otherwise, the silicon rubber will be partly solidified and this will give birth to difficulties in your final operation. What’s more, the finished moulds will meet a short life. All of these will cause a waste of silicon rubber. 

Step 3: Vacuum pumping(optional)

Without exception, this step takes less than 10 minutes. Otherwise, it will cause cross-linking reaction, and no more further steps will be available. 

Step 4: Pouring casting or Brush operation

*Notes:1. For simple pattern products, we suggest using pouring operation way, which will be very easy to operate and demould. Pourable silicone requires low viscosity which will be easy to flow smoothly and easy to de-air . 

2. For delicate pattern products, we suggest using brushing operation way, which can copy the pattern exactly. Brushable silicone requires high viscosity which won’t be easy to flow away and easy to brush. 

  1. We suggest setting the silicone mould for another 12 hours after demould before you put it into a large production.

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