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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.Note:Molding silicon rubber is a kind of flowing liquid and it contains two parts. Part A is a kind of white flowing liquid and part B is the curing agent. Remember to mix part A andpart 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 materials.
Operations for molding silicon rubber:
RTV-2 molding silicon rubber is mainly applied for making various molds,such as reproduction of poly resin, epoxy, polyurethane-polymer, plaster, gypsum, soaps, candle & lighting, architecture, decorative arts and crafts, plastic toy, gift and stationery, big statue, cultural relic product, etc..
Applications of RTV-2 molding silicon rubber
2-4
0.5
2-3
Features of RTV-2 manual molding silicon rubber
Low shrinkage, no deformation, good elasticity, high duplication times, etc.
Delivery Time: | 3 days after received the payment |
Package: | 25KG/Drum and 200KG/drum |
Supply Ability: | 100000 Kilogram per Week |
Minimum Order Quantity: | 200 Kilogram |
Payment Terms: | L/C,T/T |
Port: | shenzhen |
FOB Price: | US $6.5 - 18 |
Place of Origin: | Shanghai China (Mainland) |
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