On November 13, Wacker Chemical AG showcased their range of organosilicon products for medical use at this year's COMPAMED Medical Technology Professional Exhibition. Among the highlights was the debut of SILPURAN with strong adhesion® 2124 silicone gel. This innovative adhesive layer is specifically designed for non-invasive wound dressings and wearable devices that are affixed to the skin.

The silicone adhesives in the name of Wacker SILPURAN® has undergone extensive testing over the years and has been proven to be an excellent adhesive layer for non-invasive dressings. This unique gel adheres firmly to the skin but can be removed gently and painlessly.

Wacker SILPURAN®, this modernized blood sugar sensor reliably and gently sticks to the skin. (Wacker Chemie AG sourced)

The SILPURAN gel, in accordance with the DIN EN 1939 standard and labeled as SILPURAN® 2124, undergoes a 90-degree peel test on steel, which measures the adhesion strength of 2.7 N per 2.5 cm. This indicates that the gel possesses strong adhesion, making it suitable not only for wound care but also for securing various types of patches. For instance, SILPURAN ® 2124 can be utilized to create adhesive layers or medical tape, ensuring secure attachment of wearable devices like sensors, catheters, and other medical equipment to the skin within a short or medium time frame.

The new product is a translucent and two-component silicone gel with a low viscosity of 3000 mPa·s, which fully meets the requirements of the coating process. It is convenient and quick to quantitatively determine. SILPURAN® 2124 can be cross-linked into a soft and highly elastic gel-like silicone through platinum catalyzed addition reaction. Its vulcanizate is hydrophobic yet breathable, gentle on the skin without causing irritation or allergic reactions. Moreover, SILPURAN® 2124 has passed the DIN ISO 10993 standard and US Pharmacopoeia Part 88 (Level 6) testing, proving its biocompatibility and ability to be disinfected with ethylene oxide.

The SILPURAN® 2124 adhesive does not leave any residue on the skin when peeled off, and it can easily remove or reattach auxiliary materials and wound dressings. Its adhesive layer can effectively bond with protective polyethylene release films in the final product, allowing for residue-free removal of the film before use. Additionally, even after several months of storage, the peeling force remains unaffected.