Custom Medical Grade Silicone Sheeting & Silicone Film
For the Ultimate in Compatibility
Custom silicone sheeting and film, manufactured by Trelleborg Healthcare & Medical to meet customer specifications, serves a variety of medical uses:
- Discs punched from vulcanized elastomeric sheets are key components in various types of valve assemblies
- Mesh-reinforced sheeting is integrated as sewing rings on artificial heart valves
- Laminated sheeting containing both vulcanized and unvulcanized layers is used to seal tissue expanders and mammary devices
- Our knife coating technology is used to produce custom dermal adhesive gel products for wound management and scar reduction applications
Our silicone sheeting and film has the following characteristics:
- Available in LSR and vulcanized and unvulcanized HCR materials
- Reinforced and non-reinforced options are available
- May be bonded to itself or synthetics (polyester tricot)
- Easily cut to desired shape
- Autoclavable without changes in consistency, softness, or other inherent properties
- Biologically active fluids have little or no effect on the sheeting
- Excellent biocompatibility as evidenced by its USP Class VI clearance
Silicone Sheeting Manufacturing Processes
We produce sheeting using two different methods:
HCR Calendaring
High consistency rubber (HCR) is formed into various types of sheeting using a calendaring process, in which the silicone is fed through multiple rollers to produce a film of uniform thickness. The film is then transferred onto a carrier sheet and may be cured or left uncured. The calendaring process can produce a range of sheeting products including combinations of vulcanized, unvulvanized, reinforced or non-reinforced products. Calendared sheeting may be pigmented and a number of surface finishes are possible.
Our HCR calendared sheeting is available with the following properties:
Knife Coating
Our knife coating equipment and processes produce sheeting and films from different silicone materials including liquid silicone rubber (LSR), dispersions and gels. In this process, a vacuum-assist system secures a plastic film against a precisely levelled carrier belt. Silicone material is pumped at a precise rate behind a vertical blade. As the film advances, the blade spreads the silicone into a film of the desired thickness. The carrier plastic and silicone then advance through a hot air vulcanizing (HAV) chamber where the rubber is vulcanized. A protective top sheet, fed from a reel outside the HAV, is automatically and continuously applied to the upper surface of the cured film. And finally, the cured sheeting is spooled as finished product.
- Entirely closed-loop process significantly reduces the risk of particulate contamination due to environmental exposure
- Continuous manufacturing process capable of producing larger batch sizes at lower cost
- Sheeting thickness is more precise, accurate, reproducible, and capable of producing silicone film as thin as 0.025mm / 0.00098 inches
Our LSR knife coated sheeting is available with the following properties:
