Wacker AK 100® – Silicone Oil Plasticiser for Casting Silicones & Viscosity Reduction
Wacker AK 100® – Silicone Oil Plasticiser for Casting Silicones & Viscosity Reduction
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Variant: 5 Kg Wacker AK 100
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In stock
Ordered and paid on a working day: usually ships the same day
Delivery to Netherlands: usually within 1 working day
In stock
Ordered and paid on a working day: usually ships the same day
Delivery to Netherlands: usually within 1 working day
Backorder: longer delivery time. Ask us for the current lead time.
Backorder: longer delivery time. Ask us for the current lead time.
Backorder: longer delivery time. Ask us for the current lead time.
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Premium Silicone Oil Plasticiser for Professional Mould Making and Viscosity Adjustment
Wacker AK 100 is a linear, non-reactive polydimethylsiloxane (silicone oil) with a kinematic viscosity of approx. 100 mm²/s. The oil is added to pourable addition-cure and condensation-cure silicones to make the cured rubber softer and more flexible, and to thin the uncured mix for better de-airing and detail reproduction. Because its viscosity is lower than that of AK 350, this oil blends in even more easily and flows faster into fine details. The colourless, odourless liquid has a density of 0.96 g/cm³, a high flash point of 253 °C and a low surface tension of 0.021 N/m. It is dosed by weight, typically between 1 and 15 per cent of the silicone mix: more oil gives a softer end result, less oil largely preserves the original hardness. Its core application is fine-tuning the hardness and flow of mould rubbers.
Key Benefits
- Viscosity 100 mm²/s – very thin oil that mixes quickly and evenly into addition-cure and condensation-cure silicones
- Density 0.96 g/cm³ – can be dosed accurately by weight between 1 and 15 per cent for controlled hardness reduction
- Hardness reduction of approx. 3 to 5 Shore A at 8 per cent – predictable softening without making the silicone unusable
- Flash point 253 °C – high thermal safety margin during processing and storage
- Low surface tension 0.021 N/m – improves the flow of the silicone mix so that it runs more easily into fine details and crevices
- Fully miscible with all Wacker AK silicone oils – any intermediate viscosity can be obtained
Typical Applications
- Softening pourable addition-cure and condensation-cure silicones for more flexible moulds
- Reducing the viscosity of mould rubber for better de-airing and detail reproduction
- Smoothing applied silicone by hand when using brush-on and spatula techniques
- Release agent and lubricant in industrial and technical applications
- Water repellent and antifoaming agent
- Liquid dielectric and heat-transfer oil for electrical applications
Processing
- Prepare your silicone: mix Part A and Part B in the correct ratio by weight as stated in the technical data sheet of the silicone concerned, and stir thoroughly first.
- Add Wacker AK 100 by weight. Dosage between 1 and 15 per cent; approx. 8 per cent gives a noticeable softening of about 3 to 5 Shore A points. More oil softens the rubber further, but above 10 per cent the final strength may drop to an unacceptable level.
- Mix until completely homogeneous so that the oil is evenly distributed throughout the silicone mix.
- Pour or apply the mix within the pot life of the silicone used.
- Allow to cure in line with the curing time and temperature of the silicone used.
Wacker Chemie AG is a global market leader in the development and production of silicones for industrial and technical applications.
Special Notes
Adding silicone oil is a way of modifying your silicone. Please bear in mind that some of the final values will differ from those in the silicone's technical data sheets. The oil does not cross-link into the silicone, so over the years and under stress it slowly sweats out, leaving a greasy film and causing the mould to shrink slightly.
Food Contact
Wacker AK 100 formally complies with Regulation (EU) 10/2011 and, as polydimethylsiloxane (E 900), is included in the positive list. In addition, the German Umweltbundesamt (Federal Environment Agency) lists the product as a base oil for lubricants in contact with drinking water. However, Wacker expressly advises against its use as a food additive; the substance has no technological function in food. Suitability for a specific food-contact or drinking-water-contact material must always be established by the manufacturer of the end product.
Shelf Life
At least 5 years when stored below 50 °C in a dry, cool place in a tightly closed container.
Professional Support
Not sure about the right dosage for your particular silicone or application? Please feel free to contact us – we are happy to help you fine-tune hardness and flow.
Product Properties
- Viscosity100mPa·sViscosity of the uncured silicone
- Density0.96g/cm³Density of the cured material
Physical Properties
- Flash point253°CMin. temperature at which the product ignites
- Surface tension0.021N/mSurface tension at 25°C
- Refractive index1.403Refractive index at 25°C
- Vapour pressure<0.1hPaVapour pressure at 20°C
Thermal Properties
- Max. temperature50°CMaximum service temperature
Application
- Use casePlasticizer and viscosity reducer for casting siliconesIntended use
- Silicone type["Silicone oil","Auxiliary"]Type of silicone or polymer
Safety Information
According to the safety data sheet (section 2), Wacker AK 100 is not classified as a hazardous substance or mixture. No GHS labeling is required, and no hazard pictograms, H-phrases, or P-phrases apply. Under normal and intended use, the product is not classified as hazardous. Personal protective equipment is not prescribed. However, general industrial hygiene measures are recommended: do not eat, drink, or smoke during use, and wash hands after handling. Safety glasses and gloves are recommended. Avoid the formation of aerosols; wear appropriate respiratory protection when atomizing. Spilled product is slippery and can pose a slip hazard; clean up spills immediately. For complete information, please consult the manufacturer's safety data sheet (SDS).| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
Required protection (ISO 7010)
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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.