Polycraft Silicone Putty RTV Mould Making Silicone Rubber
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Size: 100g Kit (50g Part A & 50g Part B)Size: 250g Kit (125g Part A & 125g Part B)Size: 500g Kit (250g Part A & 250g Part B)Size: 1kg Kit (500g Part A & 500g Part B)
Size: 2kg Kit (1kg Part A & 1kg Part B)Size: 6kg Kit (3kg Part A & 3kg Part B)Size: 10kg Kit (5kg Part A & 5kg Part B)Size: 50kg Kit (25kg Part A & 25kg Part B)

Polycraft Silicone Putty RTV Mould Making Silicone Rubber


Price:  £5.00(Inc. 20% VAT)(£4.17 Exc. VAT)
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Quick Link Code:  QL7320
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Polymerization:  Addition Cure

Polycraft Silicone Putty RTV Moulding Rubber - Cured SamplePolycraft Silicone Putty RTV Moulding Rubber - Cured Sample

Polycraft silicone putty is a fast curing silicone rubber, cured at room temperature with excellent dimensional stability and is used for the rapid reproduction of objects.

Polycraft Silicone Putty is ideal for small mouldings and will replicate excellent detail from the original object producing a strong semi-flexible reusable mould. It has excellent self-releasing properties and will not require release agent for most applications. Ideal for a wide range of impression type moulding applications such as ornate plaster decorations, polymer clay to figurings etc.

Properties Units Values
Characterization   Addition Cured RTV
Aspect   Paste
Colour Part A   White
Colour Part B   Violet
Odour   Odourless
Penetration Cone Mm/10 220 ± 15
Mix Ratio   100:100
Working Time Minutes 2 - 3
Setting Time Minutes 6 - 8
Hardness Shore A 43 ± 3
Specific Gravity g/cm³ 1.45 ± 0.02
Elongation % 100 - 200
Tensile Strength MPa 1.6 ± 0.3
Tear Strength KN/m 7.0 ± 2.0
Shrinkage (After 24h) % <0.1

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.

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.

Average Rating (1 Review):  
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Rating:  
Mould Casting
13 November 2020  | 

I have used other putty and resins for casting ...But for ease of use and quality moulding I must recommend this silicone putty
It moulded together easy, it shaped easy it cast easy and using QL2133 resin made the job a pleasure...

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