silicon material for gypsum products

HY-638 Silicon Material for Gypsum Products

Usage for silicon material for gypsum products:

For toy gifts and craftwork gift, products with complex fine

details, and made in pouring way.

Description of silicon material for gypsum products:

HY-638# plaster molding silicon is mainly used for toy gifts

and craftwork gifts with the advantages of good tensile strength, high tear

strength, high temperature resistance, high duplication times and repeated use,

etc. It is suitable for small products or fine and precision products which is

difficult to demould. This plaster molding silicon is one of the products with

the highest use level in the production of craftwork gifts and the shrinkage is

up to 2‰.

Applications for silicon material for gypsum products: 

Poly technique, lightings, candles,

and  molds in multiple pieces for large products.

General description for silicon material for gypsum products:

RTV-2 plaster molding silicon and silicone rubber are

general called two-component room temperature vulcanization silicone rubber with

excellent fluidity and good operational performance. Add curing agent of 2%-3%

at the room temperature, the plaster molding silicon is still operational within

30 minutes,and in 2-5 hours, an elastic silicon mold will be obtained with

resistance to deformation, high-temperature, acid and alkali and expansion. The

plaster molding silicon is mainly applicable to mold duplication of poly crafts,

resin craftworks, lightings, candles, etc. and fabrication of precision

molds.

Operation Instruction of  silicon material for gypsum products:

The product is white or red flowing liquid with general hardness

of 34—38A°after curing . If the customer wants to make large products and large

size molds, the mold should be made of silicone 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

demould, less curing agent is needed.

(Note: 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.)

The proportions and reactions of the curing agent and the

silicon material for gypsum products are listed as follows:

1. Adding curing agent 1%, the silicone can still be operated

within 2.5 hours and can be demoulded after 6-8 hours.

2. Adding curing agent 2%, the silicone can still be operated

within 50 minutes to 1 hour and can be demoulded after 2-3 hours.

3. Adding curing agent 3%, the silicone can still be

operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours.

4. Adding curing agent 4%, the silicone can still be

operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.