Mold making silicone rubber for stone products,with HS code 39100000

Applications of Mold making silicone rubber for stone products:  

Mold making silicone rubber for stone products is mainly used in toys,gifts,decoration,plate engrave, human replica, art crafts, resin crafts,poly resin crafts,unsatured resin crafts, candle crafts, plastic crafts,stationeries,plaster crafts and Buddhist statue crafts,etc.

Features of Mold making silicone rubber for stone products:

Mold making silicone rubber for stone products has good characteristics of easy operation, light viscosity and good flowability, low shrinkage, favorable tension, No-deformation favorable hardness and high temperature, acid alkali and ageing resistance.

Basic description of Mold making silicone rubber for stone products:

Mold making silicone rubber for stone products is a kind of silicon consisted with two part, one is silicon another one is catalyst, the ratio is 100:2 under temperature 25°the operating time of mold making silicon is half an hour,demould time 2-4 hours. if customers make molds in brushing way,628 and 638 are good choices as they have moderate viscosity.

Picture show of Mold making silicone rubber for stone products:

Datasheet of  Mold making silicone rubber for stone products:

Operation of Mold making silicone rubber for stone products :

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 demold, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.

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

Applications of Mold making silicone rubber for stone products:  

Mold making silicone rubber for stone products is mainly used in toys,gifts,decoration,plate engrave, human replica, art crafts, resin crafts,poly resin crafts,unsatured resin crafts, candle crafts, plastic crafts,stationeries,plaster crafts and Buddhist statue crafts,etc.

Features of Mold making silicone rubber for stone products:

Mold making silicone rubber for stone products has good characteristics of easy operation, light viscosity and good flowability, low shrinkage, favorable tension, No-deformation favorable hardness and high temperature, acid alkali and ageing resistance.

Basic description of Mold making silicone rubber for stone products:

Mold making silicone rubber for stone products is a kind of silicon consisted with two part, one is silicon another one is catalyst, the ratio is 100:2 under temperature 25°the operating time of mold making silicon is half an hour,demould time 2-4 hours. if customers make molds in brushing way,628 and 638 are good choices as they have moderate viscosity.

Picture show of Mold making silicone rubber for stone products:

Datasheet of  Mold making silicone rubber for stone products:

Model	Rhodia 3325	HY-625
Appearance	White	White
Mixing proportion of curing agent(%)	5%	5%
Curing time (hours)	8.0-10.0	4.0-8.0
Shore Hardness (Shore A)	25	25±2
Density (g/cm 3)	1.2	1.08
Viscosity (Mpas-25°C)	35000	21000±2000
Tear-strength (kfg/cm )	≥21	≥25
Tensile-strength (kgf/cm)	≥4	≥4.1
Elongation-break (%)	≥450	≥450
Retractility (%)	≤0.7	≤0.3

Operation of Mold making silicone rubber for stone products :

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 demold, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.

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

FAQ for Mold making silicone rubber for stone products:

Why the silicon mold just can be reproduced for a few times?

a.Adding too much silicon oil into silicon rubber .silicon oil is an additive which destroies the molecular weight of silicon rubber and reduce the tension and tear strength.

b.Using the silicon rubber a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to make molds for large sized products with simple designs. so we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.  

Packaging, storage and transportation for Mold making silicone rubber for stone products:

1. This product need to be packed in clean, dry and sealed steel cans or drums. Part A and B need to be packed seperately. Usually it is packed in 5kg/can, 20 kg/drum, or 200 kg/drum .

2. Please keep the material in a cool and dry place. Specially note that the silicone should not touch or mix with compounds including nitrogen, phosphorus, sulfur, tin, lead or metal organic acid. Otherwise, the catalyst will be poisoned, then the silicone can not be cured or just particially cured. For specific precautions, please refer to the instructions in Electronic Potting Silicone part.
3. The goods is NOT subject to IMDG.The shelflife is 18 months from the date of production.And it still can be used after expired, when retest to be qualified.