Food grade silicone rubber is a material for mould making, it can make moulds for chocolate, ice cream, candy without harmess.
RTV food grade mold making silicone (Addition-cure type)
Description of food grade liquid silicone rubber
RTV mold making addition silicone are generally named as two-part addition silicone rubber that vulcanizes at room temperature.Part A is a flowable liquid, part B is the curing agent(platinum catalyst). It features an exceptional fluidity ,good operability,excellent physical properties and very low shrinkage. The mixing ratio between Part A and Part B can be 10:1 or 1:1.
Main application of food grade liquid silicone rubber
· Food mold making (chocolate mold, cake mold et. )
· Rapid prototyping (urethane casting/silicone tooling/vacuum casting)
· Concrete molding /cement products
· PU resin casting
· General Mold making
· Superior manual mold design
Main properties of food grade liquid silicone rubber
· almost nil shrinkage
· high chemical resistance to aggressive components of some types of resins
· good tear strength (this feature ensures higher resistance to wearing and shearing)
· high degree of precision in reproduction
· high dimensional stability over time and non-deformability
· high resistance to high temperatures and aging (resit to -60-200°C)
· excellent non-stick effect
· environmental, odorless and nontoxic
E-620 silicone rubber standard datasheet(25°C)
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Model
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Color
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Mixing ratio
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Pot life (mins)
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Demouled time (hrs)
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Hardness(A0)
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Tensile-strength (kgf/cm2)
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Tear-strength kgf/cm)
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Viscosity (cps)
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Elongation (%)
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E620#
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translucent
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1:1
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30
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5-6
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20±2
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45±2
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20±2
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7000±2000
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≥300
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Notice:
Addition silicone is forbidden to mix with organic compounds of condensation cure silicone rubber, otherwise, the silicone rubber will not cure, and also should not mix with organic compounds containing S, P, N as well as metallic salt of organic acids. It also will cause this product cure incompletely or not cure.
Storage ,shelf life and handling precautions:
1. Shelf life can be twelve(12) months when stored at 25°C in tightly closed original packages.
2. Storage beyond the expired date does not necessarily mean that the product is no longer
usable. In this case , the properties required for the intended use must be checked for quality assurance reasons.
3,The curing agent may denature if the cap is left off after opening.Make sure to tightly seal the products prior to storage.Take particular care under conditions of high temperature or humidity.
4,If any of these products should come into contact with skin,wipe the exposed area with a cloth and then wash it thoroughly with soap.
5. This kind of product is non-dangerous product, which could be transported as general products.
