RTV 2 silicone rubber make molds for resin&gypsum casting

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  b.Slowly and evenly perfuse the gypsum to the square frame. Also you can brush the resin on the product which is covered with the finished silicon rubber mould with a brush or a brush pen. Repeat this process two or three time after the cross link reaction.

 with the finished silicon rubber mould in the middle.

  a.Make a square frame with four pieces of wooden boards or rubber plates, then place the product which is covered

  Step Four: Operations for the external mold

  The perfusion molding is an easy way to make molds,  Slowly and evenly perfuse the mixed silicon rubber into the square frame. After the cross linking reaction.

  Perfusion Molding

d. Cover a third coat.(Note: if you have high requirements for the tension and the tear strength for the mold,please repeat step c and step d.Hence, the finished silicone moulds will have a good quality and a longer life, which can help you save cost and increase production efficiency.)

c. Cover a glass cloth on it after another 30 minutes of a second cross linking reaction, and use a brush pen or a brush to avoid any interstices.

strength of the mold.

b. After the cross linking reaction ( about 30 minutes ),brush a second coat which can increase the tension and tear

a. Evenly brush the mixed silicon rubber on the product which is covered with mold spray with a brush or a brush pen.

Brushing cast:

  Step Three: Brushing cast & Perfusion Molding operation

  reaction, and no more further steps will be available.

  Without exception, this takes less than 10 minutes. Otherwise, it will cause cross linking

  Step Two: vacuum pumping

   Step One:Take 100g of part A and add 2g of part B and mix the silicon rubber and the curing  agent evenly.

perations for molding silicon rubber:

40

( kgf /cm² )

Tensile-strength

29000

Viscosity (CS)

1.08

Density ( g/cm ³ )

25

Hardness (A

offer RTV 2 silicone rubber make molds for
resin&gypsum crafts reproducing
soap&candle
concrete products making
gardon stone