Wacker will be presenting customized silicone rubber grades that set new standards with their optimized properties in terms of haptics, tensile strength, and adhesion at CompaMed 2024.

Addition-curing solid silicones for the manufacture of medical and pharmaceutical tubing, for example for use in peristaltic pumps, heart-lung machines, and infusion sets will be on display

SILPURAN silicone adhesive gels are another highlight. They are suitable for coating wound dressings and fixation aids to attach portable sensors, dosing devices, and wearables to the skin. 

At this year’s CompaMed, Wacker will be showcasing solid silicone grades, ELASTOSIL R plus 4305, ELASTOSIL R plus 4360, ELASTOSIL R plus 4366, and more. These addition-curing solid silicone rubbers are ideal for medical technology applications, as no peroxide byproducts are formed during curing. Tubes made from these silicones can be used in heart-lung machines, dialyzers, ventilators, infusion systems, and catheters, for example. 

ELASTOSIL R plus 4305 has high mechanical properties. Tubes or components made of this material are particularly durable and are characterized by high bursting strength. They are also compatible with mRNA technology. 

ELASTOSIL R plus 4360 has particularly high rebound resilience and a low compression set. It is particularly suitable for the manufacture of durable tubing for peristaltic pumps.

Cured rubber products made from ELASTOSIL R plus 4366 have particularly low-friction surfaces. Its coefficient of friction is 50 to 70 percent lower than that of comparable standard solid silicones.

Silicone adhesives are another product group that WACKER will be showcasing at CompaMed, with a focus on SILPURAN 2114 and SILPURAN 2124. Both grades achieve a significantly higher adhesion than standard silicone adhesive gels. 

SILPURAN 2114 achieves an adhesive strength of 3.5 Newtons per 2.5 cm2, while SILPURAN 2124 achieves an impressive 6.0 Newtons. Both silicone adhesives are suitable for atraumatic wound dressings and can also be used for attaching sensors, dosing devices, colostomy bags, and wearables to the skin. Despite their good adhesion, these fixation aids can be gently and painlessly removed.

Both SILPURAN grades are 2K systems. They crosslink to form water-repellent cured rubber; this is breathable, making it possible to produce extremely skin-compatible fixation solutions. No residue remains on the skin when the dressing or tape is removed.

The gels also offer excellent adhesion values after repositioning. SILPURAN 2114 and SILPURAN 2124 can be combined with certain polyolefin release films. Such films can be removed without leaving any residue before being applied to the skin. The release force of the adhesives remains unchanged even after several months of storage.