Rtv Liquid Silicone Liquid Silicone For Mold Making Good Price Long Life Time Rtv Liquid Silicone

Company Information
Shenzhen Zhihua Chemical Co., Ltd.(DC SILICONE) waswas established in 2008,is a science and technology Company which is concentrating on production, R&D, and sales of Chemical products, especially silicone rubber. We are praised as the leading professional manufacturer of Mould Making Silicone Rubber,Addition Silicone Rubber,Life Casting Silicone Rubber,Electronic Potting Compound,Pad Printing Silicone Rubber,and so on.we are welcome to all the customers come to visit our factory and have a fruitful bussiness relationship.Product Description
100A:2B Mixed ratio RTV-2 liquid silicone rubber for concrete mould
Description of 100A:2B Mixed ratio RTV-2 liquid silicone rubber for concrete mould
DC-C35 RTV-2Mold Making Silicone Rubberis a kind of room temperature vulcanized silicone rubber in condensation type. It’sgenerally named as twopart silicone rubber,Part Ais a flowable liquidsilicone, Part B is the curing agent(Tin catalyst) . It’s mainly used for mold making.
Typical Applications of 100A:2B Mixed ratio RTV-2 liquid silicone rubber for concrete mould
DC-C35 RTV-2Mold Making Silicone Rubberisusedformaking molds of concrete stone, GRC, gypsum decoration, plaster ornaments, fiberglass products, polyester decoration, unsaturated resin crafts, polyresin crafts, polyurethane, bronze, wax, candle, and similar products.
Technical Parameters of 100A:2B Mixed ratio RTV-2 liquid silicone rubber for concrete mould
Model
Color
Mixing ratio (%)
Pot life (mins,
under 25℃)
Curing time
Hardness ( Shore A )
Tensile-
strength (MPa)
Tear-
strength (kN/m)
Viscosity
(After A/B mixed ,mPa.s)
Shrinkage
rate (%)
Elongation
(%)
DC-C35
White100:2
30-40
(3-5hrs under 25℃);
(20-30 mins under 60℃)
35±2
>4.8
>24
25000±5000
<0.25%
>500%
SHELF LIFE:
12 months when stored under 25°C in original unopened packages.Packaging & Shipping
25KG/drum vacuum packing for part A+1kg/ bottle catalyst for part B;9/18drums/pallet;
200KG/drum packing for part A+1kg/ bottle catalyst for part B; 1//2/4drums/pallet;Our Services
Techinical Support
Normally,differentsiliconeshouldbechoosedaccordingtodifferentproduct'sfeatures,forexample:
-Forproductssize(within20cm),
withintricatedisigns,softsiliconeissuitable,suchas10-20shoreA.-Forproductssize(20cm-80cm),
withintricatedesigns,20-25shoreAissuitable.
withsimpledesigns,25-30shoreAissuitable.-Forproductssize(80cm-150cm),
withintricatedesigns,25shoreAissuitable.
withsimpledesigns,30-35shoreAissuitable.-Forproductssize(morethan150cm),
withintricatedesigns,25-28shoreaAissuitable.
withsimpledesigns,35-40shoreAissuitable.Characteristics
*Good operability, easy to demold
*Moderate hardness
*Hightensile and tear strength
*Cure at room temperature
*Good flexibility
*High duplication times FAQFAQsWhy could the silicone mold be reused only for a few times?
Maybe you will confuse about this question for years. Here we share you some following reasons:
a. Addingtoo much silicone oil into silicone rubber. Silicone oil is an additive which will destroy the molecular weight of silicone rubber and reduce the tension and tear strength.
b. Addingtoo much catalyst into the silicone rubber when you make the molds. For the condensation cure(tin catalyst) silicone rubber. we suggest you add no more than 2% of catalyst. If you 1add too much catalyst, the operation time will be too fast to operate ,which will also reduce the tension and tear strength.
c. Using the silicon 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.
Why does the silicone mold get burnt out?
The silicone mold get burnt out 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.
Our DC silicone rubber has add a special material which can resistant high temperature to make the resin molds. Help our customer avoid this problem. Why does the silicone mould appear to be dry outside but wet inside?
Because molding silicone rubber is a kind of condensation silicone rubber, which get solidified after absorbing moisture from the air. In order to provide a significant shelf-life for the silicon rubber, we will dry out the water in the silicon rubber.
Solution: Add 0.05% water into the silicon rubber and Stir over a low speed briefly when you use it. Why is the tear strength of the silicone mold weak?1.you add the compound silicone oil( the compound of silicon oil and white oil). The white oil is not silicon oil but a kind of petrochemicals.
2.Your supplier add to much silicone oil when they producing silicone rubber or reducing the hardness of silicone rubber. Related ProductsHot sales1FDA medical food grade RTV-2 liquid Silicone Rubber for insole making2RTV-2 Food grade Casting silicone rubber liquid3Cake mold making RTV-2 silicone Liquid Rubber with FDA food grade