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Silicone Rubbers cover most mould making requirements; by various combinations of rubbers, catalysts and Thixo Additive, a wide range of viscosities, strengths, and properties can be obtained. Room Temperature Vulcanising (RTV) Silicone Rubbers (i.e. cold cure) make moulds with working temperatures of 50șC 250șC, making them suitable for use with a wide range of materials, including plasters, cements, polyesters, epoxies, urethanes, waxes etc. and RTV-101 is a firm rubber going to 316șC, making it ideal for use with tin alloys and pewter (both hand casting and with the Centricast Machine - see later section).
Subdivisions
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RTV-101 Silicone Rubber
A red pourable rubber. This rubber is primarily used for the casting of low melt alloys, both centrifugally and by hand, or where a very firm mould is required. RTV-101 is used in the Centricast sys...
SE-2005 Silicone Rubber
A white, very free flowing RTV silicone rubber, easy to use; cures to a firm (but low strength) rubber and is ideal where there is only slight undercut. It is also suitable for hand casting in tin al...
T20 Silicone Rubber
A very high strength RTV silicone rubber. Pale grey in colour, easily pourable and medium soft. It can be used for making block moulds or skin moulds where large undercuts are present. T20 is suita...
T28 Silicone Rubber
A high strength RTV silicone rubber. Pale grey in colour, pourable and slightly firmer than T20. It can be used for making block moulds or skin moulds where large undercuts are present. T28 is suit...
T30 Silicone Rubber + T30 Catalyst
An extremely tough, thick flowing, very high tear strength silicone rubber. White in colour, slightly firmer than T28. Shore A hardness is approx 30. Pot life with original catalyst is approximatel...
Silcoset 152 Adhesive
A one part silicone adhesive sealant for repairing silicone rubber moulds, and useful as an all round adhesive sealant.
Putty Silicone
Putty silicone is a two component room temperature condensation curing compound. The product is a pasty mass that, once cured, has an elastomeric consistence with good mechanical properties and good ...
Silicone Fluid
Silicone Fluid for thinning down silicone rubber. Normally up to 5% may be added to the rubbers to reduce viscosity without having any effect on the properties of the rubber; after that, properties ...
T40 Silicone Rubber (Fast)
A thick, fast setting, two-part, addition cured silicone with a variety of mouldmaking applications including lifecasting. Its non-slump consistency allows moulds to be taken from vertical surfaces an...
Addition Cure 13 Silicone Rubber
- New
Very soft Translucent white, dimensionaly stable, two part addition cured silicone rubber with good mechanical resistance. suitable for a variety of applications where precision in reproduction is req...
Addition Cure 33 Silicone Rubber
- New
A medium firm, translucent white, reduced viscosity, two part addition cured silicone ideal for small scale, or detailed castings where high levels of surface accuracy are required. High resistance to...
Addition Cure Thixo Agent
- New
Thixotropic additive for Addition Cure 13 and Addition Cure 33 silicone rubbers. Used in a ratio of 1% (by weight) into each silicone component separately (e.g. 1% into part A and 1% into part B prior...
MM-730 Silicone Rubber 'Food Safe'
- New
A Food Safe Addition Cured Silicone suitable for making moulds for a variety of applications. Off-white colour, Shore A 30, Low linear shrinkage 0.08%
Catalyst is mixed at a ratio of 10% by weight, o...
T6 Catalyst
The standard catalyst for both T20 and T28 RTV silicone rubbers. It is used in the ratio of 20 : 1 (5%), giving a pot life of 100 minutes, cure 24 hours (times are a guide only and will depend on con...
TW Catalyst Booster
A separate additive which, when mixed with T6 Catalyst, will give T20 and T28 RTV silicone rubbers a much quicker cure. The addition of this additive will not affect the physical properties of the cu...
Thixo Additive
Thixotropic additive for T20 and T28 silicone rubbers. For making skin moulds or moulding immovable vertical objects. Thixo additive is used as a third component, and it changes the catalysed rubber...
Formula 5 Release Agent
Spray wax release agent in aerosol form, used to stop silicone rubber sticking to itself when making moulds in more than one piece. Replaces DP100. *This product is hazardous/flammable and must be se...
R5 Wax release agent
- New
Non-silicone wax release agent. Used sparingly at room temperature, gives an excellent coating. Particularly good for silicone from silicone. *This product is hazardous/flammable and must be sent by...





