Silconic Stensil ECO 60 Orange – Kneadable Silicone for Mould Making & Jewellery

Premium Medium-Hard Kneadable Silicone for Professional Mould-Making and Jewellery Applications

Stensil ECO 60 is a kneadable 2-component platinum addition-cure silicone (Shore A 60) that cures at room temperature. The orange putty is simply mixed by hand in a 1:1 ratio by weight and, with a pot life of 1.5 minutes and a demoulding time of 5 minutes, allows a fast production cycle. Its Shore A 60 hardness makes this grade ideal for firmer moulds, jewellery production, model making and industrial reproduction where more rigidity is needed than the softer ECO 30 or 50 grades provide.

Key Benefits

• Shore A 60 – medium-hard grade offering greater compressive resistance for hard objects and heavier casting materials.
• Demoulding time 5 minutes – fast cure at 20 °C for high production speed.
• Shrinkage <0.1% – dimensionally accurate reproductions for precision applications.
• Density 1.64 g/cm³ – stable putty for vertical models.
• 1:1 mix ratio by weight – easy hand mixing without equipment.
• Chemical resistance – reasonably resistant to acidic and more aggressive substances for repeated use.

Typical Applications

• Jewellery production – sturdy moulds for metal and resin casting of rings, pendants and miniatures.
• Mould making – durable reproduction moulds for medium-hard to hard materials.
• Model making & prototyping – accurate reproductions with good dimensional stability.
• Restoration & reproduction – ornaments, fittings and historical details.
• Dental technology – firm bite registrations and insulating layers.
• Industrial small series – reproduction of technical parts requiring more rigidity.

Processing instructions:

1. Take equal parts by weight of Part A and Part B (1:1).
2. Knead both components thoroughly with clean hands until a uniform orange colour is obtained.
3. Use the mixed putty within the 1.5-minute pot life.
4. Press the silicone over or around the model and wait 5 minutes at 20 °C.
5. Demould once the silicone has fully cured and no longer feels tacky.
6. Full strength is reached after 24 hours.

Addition-cure silicone warning: Stensil ECO is a platinum addition-cure silicone whose cure 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 been developing dental silicones under its own brands and is one of the leading producers of RTV-2 silicones in Europe.

Professional Support

Does your application call for Shore A 60, or would the harder ECO 70 be a better fit? Our team will gladly help you make the right choice. Contact us via our website for personal advice.