CChurub Rubber™
Sports & Outdoor

Diving Mouthpieces: Bite-Endurance & Cytotoxicity Clearance for a Watersports OEM

Diving Mouthpieces: Bite-Endurance & Cytotoxicity Clearance for a Watersports OEM

The Challenge

The OEM’s mouthpieces tore at the bite tabs after a few dive seasons, and their new EU retail partners required ISO 10993-5 cytotoxicity documentation for prolonged mouth contact. Requirements: tear-resistant medical-touch LSR, bite-tab endurance validation (8-hour continuous simulated bite), compatibility with standard 22/25 mm snorkel and regulator bores, and translucent and black color variants.

Our Solution

We molded the mouthpieces in high-tear medical-touch platinum LSR with a redesigned tab root radius, ran ISO 10993-5 cytotoxicity testing and an 8-hour simulated bite endurance rig, and delivered tooling that fits both standard 22 mm and 25 mm bore geometries in two colors from one mold family.

Results

  • ✅ ISO 10993-5 cytotoxicity report issued for EU retail onboarding
  • ✅ 8-hour bite endurance passed; tab tearing eliminated
  • ✅ One mold family covers 22/25 mm bores in 2 colors
  • ✅ OEM switched its full mouthpiece line to our factory

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Diving Mouthpieces: Bite-Endurance & Cytotoxicity Clearance for a Watersports OEM | Churub Rubber