liquid Silicone rubber for PU crafts molding making

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We are manufacturer specializing in all kinds of silicone rubber, our products are high quality with competitive price; also we can help our customers solve any technical problems of silicone rubber.

Friendly remind:

4. Adding curing agent 4%, the silicone rubber can still be operated within 10 - 15 minutes and

3. Adding curing agent 3%, the silicone rubber can still be operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours.

2. Adding curing agent 2%, the silicone rubber can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours.

1. Adding curing agent 1%, the silicone rubber can still be operated within 2.5 hours and can be demoulded after 6-8 hours.

2.Silicone rubber curing instruction:

(Note3: our company does not recommend you to add silicone oil. If a special soft silicon mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demould.)

Note 2: If the customer wants to make large products and large size molds, the mold should be made of silicon rubber with high hardness. On the contrary, if the mold with fine and precision patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demould, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.

at last  brush evenly with a wooden plate or a brush, and fill up the mold frame with gypsum after the silicone rubber is dried.

thirdly mix the silicone rubber and the curing agent evenly according to the mixing ratio of 100 : 2 and pour them onto the sole model,

then enclose the plane frame with wooden plates to prevent the leakage of the silicon rubber,

firstly fix the product or sole model to be duplicated onto a plane plate,

Note1: RTV-2 silicone rubber is used for pouring or brushing technique. That is to say,

c. After deaired, pouring the liquid silicone rubber into the product to be duplicated or into the mold frame.

b. After the silicone rubber and the curing agent are completely mixed, put the silicon into a vacuum machine for deairing to remove the bubbles.

a. take silicone rubber of 100g and add 2% curing agent for  mixing evenly.

Steps:

RTV-2 silicone rubber is composed of two components. Component A is white flowing liquid while component B is the curing agent.

1.Operations of Silicone rubber for mold making

Silicone rubber Features:1) Low linear shrinkage 2)high tear strength 3)high tensile strength4)Curing agent for free,good operat