Description
Addition cure silicone rubber --------food grade is generally named two-components silicone rubber, Part A and part B. It features an exceptional fluidity and good operability. The mixing ratio is 1:1,mainly be suitable for making molds application.
Applications
Addition cure silicone rubber --------food grade could be mainly used for making concrete stones, wax molds, PU molds, resin molds, gypsum casting, candle molding and chocolate , candy and any other FDA food product mold making,prototyping etc.
Instruction of Addition cure silicone rubber --------food grade
Addition cure silicone rubber --------food grade are generally named as two-part room temperature sulfurated silicone rubber, which features an exceptional fluidity and good operability. When mixed with 2-3% curing agent, they can still be operated within 30 minutes, but will be formed after 2-3 hours. With resistance to deformation, high temperature, acid and alkali, and expansion, silicon flexible molds are used for mold duplication and delicate mold making for poli crafts, resin crafts lighting and candle crafts.
Features of Flexible Addition cure silicone rubber --------food grade
(1)high tensile & tear strength
(2) Low linear shrinkage
(3)free Curing agent
(4)brushing & pouring
(5) high duplication times
(1)high tensile & tear strength
(2) Low linear shrinkage
(3)free Curing agent
(4)brushing & pouring
(5) high duplication times
Technique Data Sheet of HY-E series Addition cure silicone rubber --------food grade
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Product
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E-620
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E-625
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E-630
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E-642
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|
Appearance
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Translucent
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Translucent
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Translucent
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Translucent
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|
Hardness(shore A)
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20±2
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25±2
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30±2
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42±2
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Mix ratio(A:B)
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1:1/10:1
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1:1/10:1
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1:1/10:1
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1:1/10:1
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|
Viscocity Part A(mPa.s)
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23000±2000
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27000±2000
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25000±2000
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30000±2000
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|
Viscocity Part B(mPa.s)
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3500±500
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3500±500
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2400±500
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6000±500
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|
Tensile strength (kgf/cm2)
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45±5
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48±5
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50±5
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65±5
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Tear-strength (kN/m)
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20±2
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22±2
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18±2
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16±2
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Elongation(%)
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500±50
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500±50
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450±50
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450±50
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|
Pot life/working time (mins)
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30-40
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30-40
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30-40
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30-40
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|
Curing time/setting time (hrs)
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3-4hrs(25°C)
110-20mins(60°C)
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3-4hrs(25°C)
110-20mins(60°C)
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3-4hrs(25°C)
110-20mins(60°C)
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3-4hrs(25°C)
1 110-20mins(60°C)
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|
Shrinkage rate (%)
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0.1
|
0.1
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0.1
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0.1
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(Note: Other hardness is adjustable)