Mould Making Silicone Rubber

FOB Price

US $7.50
200 - 40,000 kilogram
US $7.00
40,001 - 999,999 kilogram

group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY-638
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 12:25:30 GMT

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Paramtents

Appearance Liquid
Purity 100%
Color white/ off-white/ blue/ red/ yellow
Application Mold Making Silicone Rubber
Curing agent 4% free of charged
Molding method Pouring , brushing
Package vacuumed packing
Shelf life 12 months
MOQ 100KGS
Certificates SGS, RoHS, MSDS, FDA, ISO, REACH, UL

Packging & Delivery

Min Order200 kilogram

Briefing

Mould making silicone rubber is a material which can used to make moulds for resin products, plaster products etc.

Detailed

Mould making silicone rubber HY-638 Chemical Specifications

Applications of mould making silicon rubber

Mould making silicon rubber is suitable for industries such as toys, gifts, decoration, plate engrave, human replica, art crafts, resin crafts, poly resin crafts, unsaturated resin crafts, candle crafts, plastic crafts, stationeries, plaster crafts and Buddhist statue crafts.

Features of mould making silicone rubber

1. Good characteristics of easy-operation

2. Light viscosity and good flowability

3. Low shrinkage

4. Favorable tension

5. No deformation

6. Favorable hardness

7. High temperature resistance, acid and alkali-resistance and ageing resistance

Data sheet of Mould making silicone rubber HY-638

Model	Color	Mixing ratio (%)	Pot life (mins)	Demouled time (hrs)	Hardness(A0)	Tensile-strength (N/m2)	Tear-strength (N/mm)	Viscosity (cps)	Elongation (%)
HY-638	white	3-5	30	4±1	35±2	42±2	23±2	35000±3000	≥380

Limitations of Mould making silicone rubber

a. When the hardness of silicon rubber is lower than 15 shore A, the tension, the tear strength, the ageing resistance, acid and alkali-resistance of silicon rubber will reduce respectively.

b. When the hardness of silicon rubber is higher than 50 shore A, the tension and the tear strength of silicon rubber will reduce, and the solidified silicon mold will be easily broken.

FAQ of Mould making silicone rubber

1. Why could the silicone mold be reused only for a few times?

It can be due to the following reasons:

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

b. Using the silicone rubber with a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to makes molds for large sized products with simple designs.

(Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.)

2. Why does the silicone mold get burnt out?

This consequence happens only because you have left out the important notes when using unsaturated resin materials to produce your products. The unsaturated resin produces great heat when added the curing agent. So you must demould the product within 3 minutes to avoid this problem.

More details of Silicon Rubber RTV for mould making Rubber , pls feel free to contact Ms Taylor:

Tel:086-755-89212380

Mob:086-18938867522

Skype: taylordl828