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Polycraft Food Safe Addition Cure Silicone Moulding Making Rubber

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Addition Cure

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Food Moulding

Food safe silicone is suitable for Ice, chocolate, candy and speciality foods can be cast or moulded into decorative shapes by using silicone rubber mould making materials. Silastic® M silicone rubber may be suitable for these applications because of their food-contact status.

This rubber, when properly cured and cleansed is suitable for food contact in accordance with the requirements of FDA Regulation 21 CFR 177.2600. This regulation, covering rubber articles intended for repeated use, requires end user verification of compliance with applicable total extractives limitations.


High Inhibition Resistance
Good Cut-Growth Resistance
High Durometer Hardness
Low Shrink
Cures at room temperature within 16 hours or heat curable.
Polycraft Food Safe Silicone Unit
Mix Ratio By Weight 10 Base : 1 Catalyst
Pot Life / Working Time 60 mins
Demould Time @ 25°C 16 hrs
Base Viscosity @ 25°C Poise 1300
Catalysed Viscosity @ 25°C Poise 900
Shore A Hardness A59
Tensile Strength Psi 650
Elongation Die C % 250
Tear Strength Die B PPI 90
Curing Colour Regal Blue

Inhibition of Cure

Great care must be taken when handling and mixing all addition-cured silicone elastomer systems, that all the mixing tools (vessels and spatulas) are clean and constructed in materials which do not interfere with the curing mechanism, do not use wood and paper mixing utensils. The cure of the rubber can be inhibited by the presence of compounds of nitrogen, sulphur, phosphorus and arsenic; organotin catalysts and PVC stabilisers, epoxy resin catalysts and even contact with materials containing certain of these substances e.g. moulding clays, sulphur vulcanised rubbers, condensation cure silicone rubbers, wood, paper, cardboard, onion and garlic.

NOT TO BE USED WITH SILICONE THIXO OR PIGMENTS (Thixo and pigments are not certified for food use)

Base and catalyst use universal containers for various kit sizes and are supplied by weight, while the supplied containers may not be full, they will contain the correct amount of both base and hardener according to the listing. At point of packaging and dispatch lids may be taped to prevent damage or spillage during transportation.

Technical & Safety Sheets
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1 Review:

Made my own chocolates - YUM
16 July 2014  | 

Used for daughters birthday party to create custom choloclates , printed instructions would be helpful but got very good support on telephone.

24 of 24 people found this review helpful.
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Thank you for your comments, we do have the technical datasheets available on the product listing for this product, we also hope to have a video tutorial available soon.