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With a vast and formidable selection of RTV silicone in both Addition Cure and Condensation Cure, we also have a number of additives that you might need with your silicone of choice.

When you think silicone additives, there are many choices you might require - such as using silicone pigments to achieve the colours you are trying to create. Or if you are moulding something vertically and require a thickening agent to stop the silicone from slumping (term used when the silicone is falling away through weight and gravity), we have these available for both addition cure and condensation cure RTV silicones.

Along with these options we offer retarders for slowing silicones down, as well as platinum accelerators for increasing the working and de-moulding times. We also offer a product called Platsil Gel 25 Part H if you want to increase the Shore hardness of a silicone from its natural hardness (selective to certain silicones).

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Showing products 1 to 15 of 15
Thixotropic Catalyst
From: £7.32
£8.78 (inc. VAT)
Platsil Accelerator
£155.52 (inc. VAT)
PlatSil Deadener LV
From: £24.57
£29.48 (inc. VAT)
PlatSil Gel Part H Hardener
From: £24.57
£29.48 (inc. VAT)
PlatSil Retarder
From: £8.20
£9.84 (inc. VAT)
From: £7.49
£8.99 (inc. VAT)
PolyCoat Sealer & Release Agent 1.5lb

Designed for various applications in mold making and casting processes

£65.34 (inc. VAT)
Primer no.3

CC Primer № 3 is a specially formulated silicone based primer for use with addition cure silicone rubbers. 100gm

From: £35.72
£42.86 (inc. VAT)
Pro-Gel FX10 Deadener
From: £23.85
£28.62 (inc. VAT)
£18.04 (inc. VAT)
Pro-gel Softener
From: £17.50
£21.00 (inc. VAT)
Silicone Fluid 200/50

Silicone fluid (silicone oil) is a non-reactive product. It is primarily used as a Thinner or Diluent to reduce the viscosity of two-part RTV Silicone Rubbers.

From: £28.00
£33.60 (inc. VAT)
Smiths Prosthetic Deadener
From: £24.57
£29.48 (inc. VAT)
Tinsil Fast Catalyst
From: £9.41
£11.29 (inc. VAT)
£34.78 (inc. VAT)