- Product Details
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Quick Details
-
Shore Hardness:
-
20 Shore
-
Color:
-
Translucent
-
Pot Life:
-
30minutes
-
Cure Time:
-
3.5hours
-
Sample:
-
1kg Silicone Sample
-
Shrinkage rate (%):
-
<0.1%
-
Mixed Viscosity:
-
Brushable
-
Mix Ratio By Weight:
-
1A:1B
-
Tensile- strength (MPa):
-
>4.8
-
Elongation (%):
-
> 500%
Quick Details
-
Place of Origin:
-
shenzhen
-
Brand Name:
-
DC silicone
-
Model Number:
-
DC-A20
-
Shore Hardness:
-
20 Shore
-
Color:
-
Translucent
-
Pot Life:
-
30minutes
-
Cure Time:
-
3.5hours
-
Sample:
-
1kg Silicone Sample
-
Shrinkage rate (%):
-
<0.1%
-
Mixed Viscosity:
-
Brushable
-
Mix Ratio By Weight:
-
1A:1B
-
Tensile- strength (MPa):
-
>4.8
-
Elongation (%):
-
> 500%
Product Description
Products Description
DC-A20
rtv2 silicone rubber for making candle mold
. The operation way is pouring. DC-A20
food grade rtv2 silicone rubber is
suitable for making candle molds, baking molds and trays, ice trays, casting butter, chocolate and other applications
. It has two parts. Part A and Part B. The mixing ratio is 1:1.
Certifications
Product packaging
1:1 mix ratio: 25KG/drum + 25KG/drum with vacuum packing
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 and 100 G part B (Or 100 G part A and 10 G part B) 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 cross linking reaction, and no more further steps will be available.
Step 4: Pouring casting or Brush operation
＊Notes:1. For simple pattern products we suggest use pouring operation way, which will be very easy to operate and demould. Pourable silicone require low viscosity which will be easy to flow smoothly and easy to de-air .
2.For delicate pattern products we suggest use brushing operation way, which can copy the pattern exactly. Brushable silicone require high viscosity which won’t be easy to flow away and easy to brush .
3. We suggest to set the silicone mold for another 12 hours after demould before you put it into a large production .
Technical Parameters
|
Model
|
Color
|
Mixing ratio (%)
|
Pot life (mins,
under 25℃) |
Curing time
|
|
DC-A20
|
Translucent
|
1:1
|
30
|
3-5hrs under 25℃
|
|
Hardness ( Shore A )
|
Tensile-
strength (MPa) |
Tear-
strength (kN/m) |
Shrinkage
rate (%) |
Elongation
（%） |
|
20±2
|
>4.8
|
>18
|
<0.1%
|
> 500%
|
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 add any pigment or powder into the addition cure silicone rubber without any testing to prevent uncured problem.
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