CHT True Skin 20 – Skin-Friendly Platinum Silicone for SFX & Prosthetics
CHT True Skin 20 – Skin-Friendly Platinum Silicone for SFX & Prosthetics
Request a quote
We price this product to order. Leave your details and we will send you a quote as soon as possible.
- 30-day returns
- Over 100,000 happy customers
- Pay later with Klarna
- Personal advice from material experts
Question about this product? Our material experts are happy to help you choose the right product. Contact us
Skin-Friendly Platinum Silicone for SFX, Prosthetics and Skin Replication
CHT True Skin 20 is a 2-component, addition-curing (platinum-cure) liquid silicone elastomer with a Shore A 20 hardness, specially developed for realistic skin replication, prosthetics and special effects. CHT has had the material tested for skin contact to ISO 10993-5 and ISO 10993-10. It combines extreme stretch (1000%), a translucent colour for accurate pigmentation and a wide service temperature range of -55°C to +204°C. Softer than True Skin 30, ideal for moving prosthetics and delicate skin textures. Easy 1:1 mix ratio.
Key Benefits
- Tested for skin contact: no cytotoxic effect (ISO 10993-5), no significant irritation and no sensitisation (ISO 10993-10)
- Exceptionally soft, Shore A 20: Maximum skin-like softness for moving prosthetics, appliances and realistic skin textures
- Extreme stretch: 1000% elongation at break (ISO 37) for natural movement and durable SFX work
- Translucent for perfect pigmentation: Clear base for accurate skin tones and colour mixing with silicone-compatible pigments
- Wide service temperature: Stable from -55°C to +204°C
- Minimal shrinkage: <0.1% linear shrinkage for dimensionally accurate moulds and prosthetics
Skin contact: what CHT has had tested
CHT has had True Skin 20 tested at Pacific BioLabs, focused on contact with the skin.
- ✓ ISO 10993-5:2009, cytotoxicity: the material is not considered to have a cytotoxic effect.
- ✓ ISO 10993-10:2010, irritation and sensitisation: intracutaneous reactivity and the maximisation test for delayed-type hypersensitivity. No biologically significant irritation and no sensitisation reactions, in saline as well as in cottonseed oil.
- ✓ FDA 21 CFR 177.2600: compliance with the US regulation for rubber articles intended for repeated food contact. This is a composition requirement, not a skin test.
The underlying CHT test reports are available on request via info@siliconesandmore.com. To compare with other skin-friendly silicones and see exactly what each manufacturer claims, visit the category Skin-friendly and biocompatible silicones.
⚠️ What these tests do and do not say
- ✓ Tested for skin contact, not for mucosal contact. For mucosal contact up to 24 hours, Zhermack ZA SFX 0020 and ZA SFX 10 WT 10 are the documented choice.
- ✓ The tests apply to the pure, fully cured material. Pigment, softener, release agent, mix ratio and cure all affect the result of your piece.
- ✓ This is not a certification of your finished product. If you are making a medical device or a product with prolonged body contact, have the cured finished product tested by an accredited laboratory.
Typical Applications
- SFX prosthetics and appliances for film, TV and theatre with maximum freedom of movement
- Skin replication and body casting for artists
- Animatronics and robotics where a soft, skin-like covering is required
- Medical simulation and anatomical training models
- Cosplay masks and character prosthetics with natural movement
- Podiatry applications and skin-contact products
Processing instructions:
- Stir both components A and B thoroughly before use (fillers may settle)
- Mix A and B at 1:1 by weight in a clean container (3 times the volume)
- Mix until the colour is uniform
- Degassing recommended: 30-50 mbar intermittently, 5-10 minutes
- Pour by gravity or pressure injection within the 20-minute pot life at 23°C. Chilling the components beforehand extends the pot life
- Allow to cure for 6-8 hours at 23°C, or accelerate with heat
Inhibition warning: Cure can be inhibited by nitrogen, sulphur, phosphorus, arsenic, organotin catalysts, PVC stabilisers, epoxy resin catalysts, condensation-cure silicones, modelling clays, sulphur-vulcanised rubbers, onion and garlic. Use clean tools only.
CHT Germany is a leading specialist in high-quality silicone elastomers for SFX, medical simulation, prosthetics and industrial applications, with decades of experience in platinum-cure technology.
Professional Support
Our technical specialists advise on pigmentation, cure speed, preventing inhibition and getting the best results for your SFX, prosthetic or simulation application. Contact us for technical data sheets, safety data sheets, test reports or advice on pack sizes and bulk orders.
Product Properties
- Hardness20Shore AHardness of the silicone material
- ColorTranslucentColor of the finished product
- TransparencyTranslucentDegree of transparency
- Viscosity10000mPa·sViscosity of the uncured silicone
- Density1.09g/cm³Density of the cured material
- Mix ratio1:1Mixing ratio A : B
- Tensile strength3.49MPaMaximum tensile force before breaking
- Tear strength11.0kN/mResistance against tearing
- Elongation at break1000%Maximum stretch before breaking
- Pot life20minutesWorking time after mixing
- Cure time420minutesTime until full cure
Component Properties
- Color ATranslucent whiteColor of component A
- Color BTranslucent whiteColor of component B
- Viscosity A10000mPa·sViscosity of component A
- Viscosity B10000mPa·sViscosity of component B
- Viscosity (mix)10000mPa·sViscosity of the mixture
- Density A1.09g/cm³Density of component A
- Density B1.09g/cm³Density of component B
Thermal Properties
- Max. temperature204°CMaximum service temperature
- Min. temperature-55°CMinimum service temperature
Electrical Properties
- Electrically insulatingYesPrevents electric current flow
Application
- Use caseSpecial effects (SFX), animatronics, prosthetics, skin replicas, pigmentableIntended use
- Silicone type["Addition curing","RTV-2"]Type of silicone or polymer
- Cure speedNormalHow quickly the material can be demoulded
- Cure conditionRoom temperature or heatCondition under which the material cures
Safety Information
True Skin 20 is a two-component silicone that, according to the manufacturer, is not classified as a hazardous substance. During processing, the components can cause slight irritation; therefore, work in a well-ventilated area and avoid skin and eye contact. Keep mixing tools clean to prevent unwanted curing. Avoid contact with materials that may interfere with curing (such as sulfur-containing clay, latex, or epoxy catalysts). Keep out of reach of children.| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
Required protection (ISO 7010)
  |
Technical data sheets
Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
What is the return policy?
You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
How can I track my order?
As soon as your order has shipped, you'll receive a track & trace code by email. It can take up to 24 hours before the code is active.
I have a problem with my order – how do I reach you?
Contact us via our contact page or email info@siliconesandmore.com. We're happy to help you quickly.
Can I order as a business?
Yes. Apply for a business account; we review your application within 3 working days. After that you order while logged in and pay on invoice, with payment terms of 14 days after delivery.
EU businesses outside the Netherlands with a valid VAT number order with VAT reverse-charged (0%, intra-community supply). The VAT number is stored in your business account; it cannot be added to an order after it has been placed.