Shenzhen, Guangdong, China
Member Since: 2008
Business Type: Manufacturer/Factory & Trading Company
1. resistance to deformation, high-temperature
2. high reproduction times
3. good tensile strength
Application of concrete garden ornament moulds making silicon rubber silicas :
Brushing RTV-2 molding silicone rubber mainly used for shoe molds, sand casting, sole sampling, plaster models, simple products, products with non-complex patterns, as well as product models with stable size and non-deformation.
Features of concrete garden ornament moulds making silicon rubber silicas :
Brushing RTV-2 molding silicone rubber, which is an environmentally-friendly liquid silicone product, is not easy to burn and can be stored and transported as non-hazardous goods. The shelf life of the product is about one year from the date of production. Inspection is required when exceeding the time limited. It can continue to be used in case of neither thickening nor deterioration.
Operation instruction of Brushing RTV-2 molding silicone rubber for concreter:
a.take silicone rubber of 100g and add 2% curing agent for mixing evenly.
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.
c.After deaired, pouring the liquid silicone rubber into the product to be duplicated or into the mold frame.
Note: brushing RTV-2 molding silicone rubber for concrete is used for pouring or brushing technique. That is to say,
firstly fix the product or sole model to be duplicated onto a plane plate.
then enclose the plane frame with wooden plates to prevent the leakage of the silicon ,
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,
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.
FAQ of silicone mould for plaster gypsum cornice mold making Rtv silicone :
Why does the RTV-2 silicone rubber for molding have few mold making times?
The silicone rubber mold has few molding times is due to follwoing reasons: adding too much silicone oil which will destroy the molecular of silicone rubber; making the mold for small and fine detailed products with higher hardness silicone rubber which is easy to break; making the mold for large products with soft silicone rubber which will reduce the tensile and tear strength of the mold, and the mold will have deformation. Thus, we should take the proper silicone rubber to make the mold for suitable products.
Technique Data Sheet of silicone rubber:
Tensile strength (kgf/cm2)
Pot life/working time (mins)
Curing time/setting time (hrs)
Shrinkage rate (%)