EASYCLEAR is a two-component condensation (tin) translucent silicone with Shore A20 hardness that cures at room temperature in 4-5 hours. Its translucent finish and low viscosity make it especially practical when you need to see the original through the mould, locate parting lines with precision, or work on special effects applications requiring a soft, transparent material.
Technical specifications
Parameter
Value
Silicone type
Condensation (tin)
Colour
Translucent
Shore Hardness
A20
Mix ratio (by weight)
100A : 5B
Working time
20 min
Cure time
4-5 hours at room temperature
Mix viscosity
13,000 cps
Elongation at break
400%
Tensile strength
33 kgf/cm²
What it's used for
Thanks to its translucency and low viscosity, EASYCLEAR is a highly versatile silicone for casting into moulds where visualising the original simplifies the process or where the parting line needs to be located with precision. It is compatible with the most common casting materials used in the workshop:
Block moulds for parts with complex geometry or difficult demoulding
Cut moulds where translucency allows you to locate the exact parting line before opening
Plaster and gypsum casting
Polyurethane, polyester and epoxy resin casting
Fibreglass casting
Moulds for wax and handmade soap
Hyperrealism pieces and FX that require a soft, translucent material
How to use it
Prepare the original and the mould box. Clean the piece thoroughly and make sure it is dry and free of dust or grease. Build the mould box to the right size for the type of mould you need (block or cut).
Weigh the components. Mix at a ratio of 100 parts base (A) to 5 parts catalyst (B) by weight. Use a precision scale to avoid affecting the cure.
Mix thoroughly. Stir slowly and evenly for at least 2-3 minutes, scraping the walls and bottom of the container. Avoid incorporating air bubbles by over-agitating.
Degas if possible. For fine-detail moulds, place the mixture in a vacuum chamber for a few minutes before casting to remove trapped air.
Pour the silicone. Cast in a thin stream from the lowest point of the mould box so the material rises without trapping bubbles. You have around 20 minutes of working time before it starts to gel.
Allow to cure. Wait 4-5 hours at room temperature before demoulding. Do not force demoulding early to avoid distorting the mould.
Demould and clean. Carefully remove the mould box and separate the mould from the original. The mould is now ready to cast.
Usage tips
Ambient temperature and humidity
Condensation silicones cure through contact with ambient moisture. If you are working in a very dry environment or at low temperatures (below 18 °C), the cure time may increase. Conversely, at high humidity and temperatures above 22 °C the process speeds up. Always keep the catalyst tightly sealed when not in use, as it can absorb moisture and lose effectiveness.
Bubble control
If you do not have a vacuum chamber, you can reduce surface bubbles by first applying a thin layer of silicone with a brush over the original (using the same material before pouring the block). This seals the finest details before filling the mould box. If you want to increase the thixotropy of that first layer so it does not run, you can add Thixo Additive to the mixture in a small proportion.
Make the most of the translucency for cuts
The main advantage of EASYCLEAR over other opaque tin silicones is that you can see the original inside the mould once cured. Use this to your advantage: before opening a cut mould, shine a torch on the outside to precisely locate the position of the piece and mark the cut line without guesswork. This reduces errors and extends the mould's service life.
Frequently asked questions
How many copies can you get from a condensation silicone mould?
With a well-maintained EASYCLEAR mould you can obtain approximately 30-40 copies under normal workshop conditions. The number depends on the material you cast, how you demould and whether you apply release agent between casts when the material requires it. Platinum silicones offer greater durability (60-80 copies), but condensation silicone like EASYCLEAR is an economical and efficient option for short to medium runs.
Is this silicone compatible with polyurethane and epoxy resins?
Yes. EASYCLEAR is compatible with polyurethane, polyester and epoxy resins. Condensation silicones in general are highly resistant to these materials, and the mould itself acts as a natural release agent in most cases. For epoxy resins in particular, it is still recommended to apply a coat of Ferosil V 32 to extend the mould's life.
Can this silicone be used for Food Safe moulds?
No. EASYCLEAR is a condensation (tin) silicone and does not have Food Safe certification. For applications in contact with food it is essential to use platinum silicones with Food Safe grade (FDA), such as Easyl 940-FDA, and carry out the corresponding post-cure at 100 °C for 4 hours.
Can this silicone be pigmented?
Yes, although pigmenting it will reduce its translucency, which is precisely its main advantage. If your application does not require transparency, you can add silicone-specific pigments at a maximum proportion of 3% of the total mix weight. Exceeding that percentage can affect the cure and the mechanical properties of the material.
What is the difference between this silicone and a platinum silicone?
The main differences are durability, compatibility and price. EASYCLEAR is a condensation (tin) silicone: more economical, with a mould lifespan of around 30-40 copies, and without inhibition restrictions from contact with other materials. Platinum silicones are more durable (60-80 copies), some are suitable for food contact or skin contact, but they are sensitive to inhibition by contact with sulphur, latex, uncured epoxy or freshly cast polyester resins, among others.
Can I speed up the cure by applying heat?
In moderation, yes. Raising the ambient temperature to 30-35 °C can shorten the cure time. However, it is not recommended to exceed 40-50 °C during the process as it can create stresses in the mould or cause uneven curing. Best practice is to work in a stable temperature environment with moderate-to-high relative humidity, which is what activates the cure in condensation silicones.
Can silicone oil be used to reduce viscosity?
Yes, silicone oil (such as DC Fluid 50) is compatible with condensation silicones like EASYCLEAR and allows viscosity to be reduced to facilitate casting or the impregnation of fine details. However, adding silicone oil reduces the mechanical properties of the material (strength and hardness), so it should be used in small proportions and only when necessary.
Is it necessary to apply release agent to the original?
It depends on the material of the original. On porous materials (plaster, wood, unglazed ceramics) it is essential to seal and apply release agent. On non-porous materials (plastic, metal, cured resin), the silicone generally releases on its own, although applying Ferosil V 32 is always an additional safeguard and protects the original, especially if it is a delicate or unique piece.
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