Dip casting is one of the best manufacturing methods for your silicone medical device, depending on your requirements. It is ideal for forming complex shapes and shell geometries (large balloons/envelopes with thin walls). Lubrizol Life Science (LLS) Health has refined and mastered the traditional dip casting process to produce parts with precision and efficiency.
In silicone dip casting, mandrels are fabricated with the desired part geometry (inner surface of a shell), silicone dispersed in solvent is precisely applied (manually or by machine) to the mandrel, solvent evaporated, then cured (polymerized/cross-linked/vulcanized) to form an elastomeric shell. Careful control of process parameters allows for optimization, precision, and reliability of the process.
Tooling and setup costs for dip casting can be less than other manufacturing methods, making it an attractive option for prototyping design iterations.
The advantages of dip-casting make it an ideal method for manufacture of balloons with special requirements. Dip casting allows manufacture of large shells, large balloons with small openings (up to 5:1 max:min diameter), thin walls with tight tolerances, “undercut” and other geometries, no parting lines, and other features not achievable by traditional molding.
At LLS Health, we care for the life of your product. That’s why we offer a complete range of manufacturing and support services — from design assistance and prototyping, to dip casting and medical device assembly.
We provide expertise in meeting the following specification:
Additional features we offer: