Description

DC-A35 is a kind of two part silicone rubber in addition cure or platinum cure type with mixing ratio of 1:1 or 10:1.It can cure at room temperature as well as under heat. It's a kind of food grade silicone which has got the United States FDA certification. and mainly used for mold making.

 

Application

DC-A35 silicone Rubber is mainly used for making molds of concrete stone,GRC,polyurethane products; wax, candle decoration; rapid prototyping and tire molds; chocolate, candy and similar products' molding.

 

Technical Parameters  

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-A35	Translucent	1:1 or 10:1	20-40	(3-5hrs under 25); (20-30 mins under 60)	352	>6.5	>17	40002000	<0.1%	> 500%

 

Characteristics

An exceptional fluidity and good operability, easy to demold

Aging resistance, high temperature resistance (220-250)

Environmentally, food-grade, FDA Certification.

Good tensile and tear strength

Outstanding bubble releasing

Very Low shrinkage

Non-deformation

 

Operation Instructions

Step 1: prepare the original molds 

Prepare an perfect original mold and clean it totally before operation.

Notes:Make sure your original molds and operation tool were cleaned up totally to avoid uncured problem.

 

Step 2: Take 100 G part A and100 GPart B(or 100 G part A and 10 G part B if the mix ratio is 10:1)and mix them evenly.

Notes: Addition cure mold making silicon rubber is two parts flowing liquid, Pls follow the step strictly:

         1.Weigh the two part exactly by electronic weight. If any part not in exactly weight, it may cause

Changing of hardness, or even cause uncured problem.

         2.Mix part A and part B evenly. Otherwise the silicon rubber will be partly solidified and this will give birth to difficulties in your final operation. What's more, the finished molds will meet a short life. All of these will cause a waste of silicone rubber.

 

Step 3: Vacuum pumping

without exception, this step takes less than 10 minutes. Otherwise, it will cause, and no more further steps will be available.

 

Step 4: PourIng casting

1.Pouring the mixed silicone rubber into the mold.

2.We suggest to set the silicone mold for another 12 hours after demould before you put it into a large production.

 

Warm Tips:

as addition cure silicone is a kind of platinum cure system, which will be easy to cause uncured problem,so pls kindly follow the tips as below:

 

Do not mix with liquid condensation silicone rubber or even the tool which used for condensation silicone rubber.

Do not mix with organic matter which contains N, S, P organics and ionic compound like Sn, as,Hg, Ph. (Do not smoke when you use this addition silicone rubber)

Do not add any pigment or powder into the addition cure silicone rubber without any testing to prevent uncured problem.

 

PAckage
1.1:1 mix ratio:  20KG/drum + 20KG/drum with vacuum packing;

200KG/drum + 200KG/drum packing

2.10:1 mix ratio:  20KG/drum + 1KG/bottle with vacuum packing

            200KG/drum + 20KG/drum with vacuum packing

 

SHelf life

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

about our comapny:

Shenzhen Zhihua Chemical Co.,Ltd.(DC SILICONE) Was 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.There has two Main Series of best selling silicone rubber in our company. The DC-A Series Addition cure silicone rubber and The DC- C Series Condensation cure silicone Rubber.

 

Why choose us?

1.Attractive price to help you save cost   

2.High quality with stable Performance.   

3.Free technical support and sample test to Check the quality.    

4.More than 10 years experience of silicone Rubber producing.   

5.Relate products purchasing assistance  

6.China visiting reception   

7.Factory visiting Reception    

8.New market developing 

9.New products research and development  

10.Engineers Site Instruction

11.Hardness can be customized according to your Requirement

12.Color and package could be customized