Sealing solutions across industries

Valves, pumps, and actuators rely heavily on diaphragms and sealing components for pressure and leak control. Our precision-engineered sealing solutions deliver leak-proof performance, chemical resistance, and long service life across critical fluid handling systems.

Aerospace and defence applications demand uncompromising reliability. We manufacture high-precision elastomer components that perform consistently under extreme temperatures, pressure variations, vibration, and demanding operating environments.

Dispensing systems require chemical-resistant diaphragms and accurate sealing for pumps and regulators. Our chemical-resistant seals support dispensing, coating, and adhesive equipment. Each part is engineered for consistent flow control and long-term dosing accuracy across a wide range of fluids.

Harsh, high-pressure environments require special materials and large high-performance seals. Our specialized elastomers withstand hydrocarbons, sour gas, pressure shocks, and extreme temperatures, ensuring reliable sealing in demanding Oil & Gas applications.

From strong acids and caustics to solvents, steam, and oxidising media, our compounds are developed, mixed, and qualified in-house engineered for the exact chemistry your plant handles, not the nearest available grade.

Harkesh Rubber engineers weatherproof, UV-stable elastomer components that keep solar installations sealed against moisture, temperature swings, and years of continuous outdoor exposure.

Large-diameter seals are usually supplied spliced — cord cut and vulcanised into a ring. Under shock loading and pressure cycling, that joint is almost always where failure begins. We mould ours in one piece, up to 1500 mm, with uniform section and consistent properties all the way round. It takes the tooling and press capacity to do it — which is why most moulders splice instead.

From switchgear enclosures to power distribution panels, our precision-engineered rubber seals deliver weatherproof insulation and long-term reliability for electrical infrastructure equipment.

Automation systems depend on precise movement and consistent sealing performance — we engineer high-precision elastomer components for actuators, sensors, and motion control systems that support accuracy, repeatability, and high system uptime.

The rubber components for medical science must adhere to strict quality standards and regulations to ensure safety, reliability, and compliance with industry standards, especially FDA regulations. Harkesh Rubber LLP has expertise in producing high-quality, reliable, and often sterile rubber components ensuring that the medical devices function effectively and safely in critical healthcare applications.

Specialists in FFKM moulding — the elastomer this industry depends on, and the hardest to process well. That depth is the capability: from precision O-rings held to ±0.05 mm through to chamber seals moulded in one piece up to 1500 mm, engineered for plasma resistance, low particulation, and vacuum integrity.