Artificial Stone Molding Silicone Rubber

APPLICATION
        Aritificial stone molding silicone rubber for mould making is mainly used for decoration and ornaments of architecture with the advantages of high hardness 40 shore A, good tensile strength, high tear strength, high temperature resistance which leads to high duplication times,chemical resistance etc. It is suitable for large products or products with simple patterns. This Liquid rubber for molds ( both pourable and brushable) is one of best selling silicone rubber for concrete, stone, cement, block decoration products, and the shrinkage is lower than 3‰.   


DESCRIPTION
        Silicone rubber for stone mould making is a kind of  two-component room temperature silicone with excellent fluidity and good operational performance. Add curing agent of 2%-5% at the room temperature, the pourable or brush-on silicone is still operational within 30-60 minutes, and in 2-5 hours, an elastic and silicone mold will be created with resistance to deformation, high temperature, low temperature, acid and alkali and so on.
   


OPERATION INSTRUCTION
        If the customer wants to make large cement products and large size GRC molds, should use silicone rubber with high hardness such as 35 shore silicone or 40 shore a silicone. On the contrary, 
if  the stone mold with fine and precision patterns, it should be made of silicon with low hardness such as 25 shore a silicone or 30 shore a silicone.


CATALYST NOTES
        The amount of the curing agent depends on the actual requirements of the customer. You should weigh the mateials accurately and stir the mixture evenly when you mix the two components. The vacuum pumping time should not be too long in case of the crosslinking reaction. The proportions and reactions of the curing agent and the silicone products are listed as follows　
1. Adding curing agent 1%, the silicone mold material remains operated within 2.5 hours and can be demoulded after 6-8 hours. 　　
2. Adding curing agent 2%, the silicone mold material remains operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours. 　　
3. Adding curing agent 3%, the silicone mold material remains operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours. 　　
4. Adding curing agent 4%, the silicone mold material remains operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.  


PACKAGE
25KG/drum vacuum packing for part A +1kg/ bottle catalyst for part B
200KG/drum packing for part A +1kg/ bottle catalyst for part B
Note: 1kg/jar, 5kgs/drum, 20kgs/drum, 25kgs/drum, 200kgs/drum and vauum package is available.   


SHELF LIFE
Twelve(12) months when stored under dry and cool place by original package under 25℃