COMPAMED 2021, the leading international trade fair for the medical manufacturing supplier market, will take place in Düsseldorf November 15 – 18.
Meet us in hall 13 at booth No. E79.
We Look Forward to Seeing You Face to Face
Finally, we can meet in person again and discuss current product developments. Make an appointment with our experts at the WACKER booth today!Set up an appointment with WACKER experts now!
Discuss Current Product Developments with Us!
Join us at COMPAMED 2021!
After more than a year of video calls and virtual events, we are very excited to finally meet you in person at COMPAMED in Duesseldorf. Our WACKER Medical team will be there to explain how strongly our silicones adhere to the skin and why silicone adhesives minimize trauma and can be removed without pain. Besides the use for wound dressings, we will showcase how our silicone gels can be used for medical tapes and to fix wearable devices to the body.Set up an appointment with WACKER experts now!
Are there release liners that work well with silicone skin adhesives?
When it comes to the right combination of adhesive and release liner, a number of things need to be considered. Material compatibility is especially important, as both adhesive and release liner can have a significant impact on product performance. The liner should peel off without removing adhesive. There are several well-established release liner solutions for soft silicone adhesives with low adhesion strength that meet these requirements.Set up an appointment with WACKER experts now!
Q&A Silicones for Medical Applications
- SILPURAN® silicone elastomers and gel adhesives contain only precisely defined ingredients, such as siloxanes, silica and crosslinkers/catalysts.
Moreover, they do not contain any phthalates, other organic plasticizers, latex, plant proteins, organic stabilizers or animal-based materials. This minimizes the risk of possible allergic reactions.
- Our SILPURAN® silicone elastomers and gels have successfully passed sensitization tests acc. to ISO 10993 and do not have any adverse effects on skin.
- Silicones are usually easy to sterilize. Many different methods are available for this, such as steam, e-beam, γ radiation or ETO, all of which result in the same properties, with very little variation.
Ideally, product properties should not be influenced by these procedures.
- Silicone gels are one exception, as they cannot be sterilized by γ and e-beam radiation
- Our SILPURAN® silicone elastomers and gel adhesives have been successfully tested for biocompatibility according to USP Class VI and various tests of ISO 10993. (ISO 10993: cytotoxicity, sensitization, pyrogenicity; USP<88>: systemic toxicity, intracutaneous toxicity, and implantation for 5 days).
- FDA device master files (MAFs) are available for many products to make medical product registration easier.
Conventional skin adhesive technology can generate high shear stress upon removal, with cells attaching to the adhesive causing trauma and pain. WACKER SILPURAN® silicone gel adhesives exhibit low shear stress upon removal, without compromising fixation or stripping the skin.
- Silicones are suitable for anything humans attach to their bodies: insulin pumps, EEG sensors, position sensors for dementia patients – even wearables can be affixed using soft silicone adhesives. WACKER SILPURAN® silicone gels come in a broad range of adhesion levels, with products like SILPURAN® 2114 offering comparable levels of adhesion to certain acrylics.
- See how ostomy care specialist Trio uses SILPURAN® silicone adhesives to fix stoma products, enhancing patients’ quality of life by eliminating the severe skin irritations that occur with standard products on the market. Link
WACKER SILPURAN® skin adhesives might not achieve the same adhesion level as aggressive acrylics, but – depending on individual conditions and dressing build-up – wear times can be impressively high compared to “sensitive” acrylic systems on the market. Choosing a high adhesion gel like SILPURAN® 2114 or SILPURAN® 2122 can increase wear time.
SILPURAN® silicone gels exhibit constant long-term adhesion properties with overall high adhesion strength, even when peeled off for the second time. This means they can be repositioned without sacrificing adhesion.
- When it comes to the right combination of adhesive and release liner, a number of things need to be considered:
- Material compatibility is especially important when it comes to your adhesive and release liner, as both can have a significant impact on product performance.
- The liner should peel off without removing adhesive.
- Increase in peel force should be less than 2.5 times after 9 weeks at room temperature.
- The peel force should not exceed 0.5 N/in.
- There are several well-established release liner solutions for soft silicone adhesives with low adhesion strength that meet all the above requirements.
- Higher adhesion silicone gels can be more challenging though. WACKER performed an extensive test program to identify the most easy-to-use release liners that also work well with its higher adhesion SILPURAN® gels. See the results of this study, which was conducted with LOPAREX.
- Typically, all the material you apply in the silicone gel coating process is actually transferred. This can save you money relative to an acrylics coating process where volume losses during production are common.
- Our high tack gels, such as SILPURAN® 2114, allow you to achieve the same level of adhesion with a lower coat weight.
Yes, wearable devices with SILPURAN® silicone adhesives can be cleaned and reused. For products that are easy to handle, we recommend separating the fixation component from the medical device itself during product design. This will make cleaning the product and replacing the adhesive component very convenient.