Silconic Stensil ECO 95 Blue – Kneadable Silicone for Hard Moulds & Industrial Applications

Premium Extra-Hard Kneadable Silicone for Professional Hard Mould and Industrial Applications

Stensil ECO 95 is a two-component, platinum-catalysed addition-cure kneadable silicone (Shore A 95) and the hardest variant in the Stensil ECO series. The blue paste cures at room temperature and is mixed by hand in a 1:1 weight ratio. With a pot life of 1.5 minutes and a demoulding time of only 4.5 minutes, this variant offers the fastest curing in the series. The Shore A 95 hardness makes Stensil ECO 95 eminently suitable for industrial production moulds, heavy reproduction, pressure-resistant applications, and situations where normal silicone would be too flexible.

Key Advantages

• Shore A 95 – extra-hard grade approaching hard rubber that can still be worked by kneading, for maximum pressure resistance.
• Demoulding time 4.5 minutes – fastest curing in the Stensil ECO series for high industrial throughput.
• Shrinkage <0.1% – excellent dimensional stability for technical precision applications.
• Density 1.72 g/cm³ – highest density in the series for a sturdy, shape-retaining paste structure.
• 1:1 mixing ratio by weight – easy manual mixing.
• Chemical resistance – reasonably resistant to acidic and more aggressive substances for industrial reuse.

Typical Applications

• Industrial production moulds – hard moulds for long production runs with pressure-resistant requirements.
• Heavy reproduction – moulds for heavy metals or large castings.
• Technical prototyping – rigid moulds for components where flexibility is undesirable.
• Restoration – structural ornaments and heavy fittings.
• Die casting – moulds that must withstand high internal pressure during filling.
• Tooling – production aids and fixtures where rubber is too soft.

Processing instructions:

1. Take equal parts of components A and B by weight (1:1).
2. Knead both components carefully with clean hands until a uniform blue colour is achieved.
3. Process the mixed paste within the 1.5-minute pot life.
4. Press the silicone over or around the model and wait 4.5 minutes at 20 °C.
5. Demould once the silicone is fully cured and no longer feels sticky.
6. Full strength is achieved after 24 hours.

Addition-cure silicone warning: Stensil ECO is a platinum-catalysed addition-cure silicone that can be inhibited by sulphur, nitrogen, amine compounds, and metal salts. These substances are found in, among other things, many latex gloves, some plasticines, lacquers, adhesives, condensation-cure silicones, 1-component silicone sealant, natural rubbers, and 3D printing materials (especially stereolithography/SLA). If in doubt, test on a small area first or apply a protective layer of polyvinyl alcohol.

Silconic GmbH & Co. KG is a German manufacturer of high-quality silicone elastomers with production in Lonsee. Since 2004, the company has developed dental silicones under its own brands and is one of the leading producers of RTV-2 silicones in Europe.

Professional Support

Stensil ECO 95 is the hardest kneadable silicone in our series. For special industrial applications or advice on whether this is the right material for your project, please contact us via our website.