Description
SiTech PU Ring — Modular polyurethane ring for quick cuff and glove changes (Waterproof Ultima Twist compatibility) with professional installation on a drysuit
Authorized dealer of yacht and diving technical equipment in Latvia offers products from the Swedish manufacturer SiTech flexible polyurethane mounting ring PU Ring, as well as ensuring its certified installation and pasting into the sleeves of any type of drysuit. This assembly serves as a base platform for modular quick-change systems, including Waterproof Ultima Twist and SiTech QCS Oval / Släggö solutions.
Technical parameters and design features
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Material: High-strength thermoplastic polyurethane (PU), which retains flexibility at low temperatures, is resistant to UV radiation, sea salt water, ozone and mechanical wear.
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Direct integration into the fabric: The ring is glued or thermally bonded directly to the inner or outer edge of the suit sleeve, forming a monolithic, completely airtight and flexible connection.
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Modular system: Provides the ability to replace a damaged latex or silicone wristband in the field within minutes without re-gluing.
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Perfect compatibility with Waterproof Ultima Twist: Forms a solid base for mounting Waterproof Ultima Twist dry gloves on suits that do not have the ISS (Integrated Silicone Seals) system installed at the factory.
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Low profile and comfort: The anatomical and soft polyurethane structure does not put pressure on the wrist and does not interfere with freedom of movement during maneuvering or technical work.
Technical specification
| Parameter | Characteristic |
| Manufacturer | SiTech Precision Diving Systems (Sweden) |
| Component | PU Ring (Polyurethane Wrist Ring) |
| Compatibility with dry glove systems | Waterproof Ultima Twist, SiTech Quick Cuff, Släggö, Antares |
| Compatibility with wristbands | Silicone bracelets, latex bracelets |
| Compatibility with clothing fabrics | Trilaminate (nylon/butyl/polyester), extruded neoprene, rubberized fabric |
| Mounting type | Specialized two-component contact bonding or heat welding in a service center |
| Environmental resistance | Baltic Sea salt water, oil and fuel pollution, UV radiation |
Service: Professional installation on dry suit
The dealer service center in Latvia provides a full installation cycle in accordance with the manufacturer's technical instructions:
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Preparing the sleeve geometry: Accurate measurement of the suit sleeve length, adjustment according to the diver's anatomy, and dismantling of the old cuff.
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Chemical and mechanical surface treatment: Degreasing, sanding and priming the fabric for optimal adhesion.
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Two-component polyurethane bonding: Application and vulcanization of an industrial adhesive layer under controlled temperature and humidity conditions.
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Leakage pressure test: Testing the suit connection with increased pneumatic pressure to guarantee the safety of the 100% against water leakage.
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Installing the Ultima Twist system and cuffs: Final configuration of rings, silicone or latex cuffs and dry gloves, instruction on proper operation.
Recommended use
| Scope of application | Application conditions | Benefits and specifics |
| Technical work of yacht and ship crews | Pier maintenance, inspection of the underwater part of the hull, work in the cold water of the Baltic Sea | Quick cuff change directly on the yacht deck, reliable fixation of dry gloves during underwater maneuvers |
| Commercial and industrial diving | Hydraulic construction, dock repairs, work in polluted environments | Maximum leak-proof reliability, high resistance to friction and mechanical shock |
| Technical and rebreather diving | Deep dives, long-term decompression, ice diving | Full integration with Waterproof Ultima Twist, ensuring dry hands and finger sensitivity in cold weather |
| Modernization and renovation of costumes | Dry suits with damaged fixed cuffs | Transition from old-style glued-on cuffs to a modern, field-replaceable modular system |
Maintenance and operating recommendations
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After each use, rinse the sleeve knots of the suit with clean fresh water to free the ring grooves from sand and salt crystals.
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Store the suit flat or hung on a special hanger, avoiding sharp bends directly in the area where the polyurethane ring is glued.
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Before installing Waterproof Ultima Twist, check the elasticity of the O-rings and lubricate them with a thin layer of silicone lubricant as a precaution.
The authorized dealer in Latvia provides both SiTech PU Ring components and a full certified service cycle and warranty for the installation work performed.
