Rubber Packing & Gaskets
Molded rubber packing and gaskets for static and dynamic sealing, manufactured to drawing or sample in compounds matched to your media and operating conditions.
Product samples Rubber Packing & Gaskets
Click any product to view a larger photo with dimensions and compound.
Rubber Packing & GasketsV-Shaped Rubber Packing
Rubber Packing & GasketsU-Shaped Rubber Packing
Rubber Packing & GasketsY-Shaped Rubber Packing
Rubber Packing & GasketsHydraulic Cylinder Packing
Rubber Packing & GasketsFlat Rubber Gasket
Rubber Packing & GasketsFlange Rubber Gasket
Rubber Packing & GasketsCustom Rubber Packing & Leak Seal
Hamta Polymer custom-molds rubber packing and gaskets in V, U, Y and flat profiles from NBR, EPDM, HNBR, Viton and more — to your drawing or sample, with compound selected against media, pressure and temperature. Send the drawing for a fast quotation.
Rubber packing and gaskets are among the most requested sealing components in industrial equipment — flat gaskets sit between fixed faces, while V, U and Y profile packings seal rods and pistons in hydraulic and pneumatic assemblies.
The failure point is almost never the rubber itself; it is a mismatch between compound and media, wrong gland geometry or an inverted installation.
Hamta Polymer manufactures these parts to drawing or sample, selecting the compound against media, temperature, pressure and type of motion — so every order starts from real service conditions rather than a one-size-fits-all material.
Where Rubber Packing & Gaskets are used across industries
Hydraulics and pneumatics
Packing for press cylinders and moving assemblies, matched to pressure, speed and surface finish.
Pumps and valves
Static or dynamic sealing at seats and flanges according to media and temperature.
Water and oil lines
Compound selected by media compatibility — EPDM for water circuits, NBR/HNBR for mineral oils.
General industrial equipment
Molded or cut gaskets made to drawing to eliminate leakage at joints and covers.
Quality assurance for Rubber Packing & Gaskets
Dimensional and cross-section verification
Shore A hardness measurement(ASTM D2240)
Appearance and parting-line review
Common failure patterns in Rubber Packing & Gaskets
Early leakage
Cause: Out-of-tolerance dimensions, incompatible compound or reversed installation
Fix: Review gland dimensions, compound and installation orientation together
Dynamic wear and tearing
Cause: Excessive speed, rough surface finish or unsuitable hardness
Fix: Improve surface finish or adjust hardness and cross-section
Chemical swelling
Cause: Compound incompatible with the media
Fix: Re-select the elastomer family against the actual fluid
How our Rubber Packing & Gaskets are produced
- 1
Receipt of drawing or sample plus operating conditions
- 2
Review of cross-section, compound and hardness
- 3
Specification confirmation before production
- 4
Molding with dimensional and visual inspection
- 5
Delivery within the agreed order scope
For engineers and technical buyers — product types, the full material matrix and a precise selection guide.
Rubber Packing & Gaskets types available from Hamta Polymer
V-profile packing
A common section in multi-ring sealing sets; selected against pressure direction and gland design.
U and Y profile packing
Suited to dynamic rod and piston sealing when the section matches clearance and stroke characteristics.
Flat and flange gaskets
For static joints between faces and flanges; thickness and hole patterns are taken from the drawing or sample.
Custom / reverse-engineered
No drawing? We can start from a worn sample, documenting media, pressure and temperature before production.
Full engineering material matrix for Rubber Packing & Gaskets
A compound selection guide based on operating temperature, fluid type and mechanical demand — for industrial orders, match the material to the real service conditions.
| Compound | Operating temperature range | Fluid resistance | Key mechanical property |
|---|---|---|---|
| NBR (Nitrile) | −40 to +120 °C | Mineral oils, greases and some fuels | Economical default choice for oil-side gaskets and packing |
| EPDM | −40 to +150 °C | Water, hot water, steam and polar media; not for mineral oil | Good ozone and weathering resistance within its limits |
| HNBR | −30 to +150 °C | Oil and fuel with better thermal stability than NBR | Mechanical and abrasion strength for severe duty |
| FKM / Viton | −20 to +200 °C | Hydrocarbons, fuels and many chemicals within grade limits | For hotter or chemically aggressive duty after compatibility check |
| VMQ (Silicone) | −60 to +200 °C | Grade-dependent; contact documentation on request | Wide thermal flexibility; rarely the first choice for mineral oils |
The listed ranges are general material selection guides; final service conditions must be reconciled with the fluid type, pressure, part geometry and order specifications.
How to choose the right Rubber Packing & Gaskets
Before ordering, send: the drawing or sample, quantity, media type, pressure, continuous and maximum temperature, type of motion, and the incumbent material if known. These data points let us confirm manufacturability and select the compound in days instead of weeks.
Frequently asked questions about Rubber Packing & Gaskets
Flat gaskets seal statically between two faces; V, U and Y profiles are designed to seal around rods or pistons, with the section chosen according to pressure direction and motion.
NBR and HNBR are the usual choices for mineral hydraulic oils, but the final call depends on oil type, pressure, temperature, speed and surface finish.
Yes — from drawing or sample, once dimensions, compound, hardness, quantity and acceptance criteria are agreed.
The usual culprits are an incompatible material, wrong gland dimensions, poor surface finish, reversed installation or pressure beyond the assembly's design.
No — EPDM degrades in mineral oils. Use it for water, steam and polar media, and switch to NBR, HNBR or FKM for oil service.
Drawing or sample, quantity, media, pressure, temperature range, motion type, and any constraint on material or hardness.
Other categories
The full rubber and polymer product range
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Ready to order Rubber Packing & Gaskets?
Send us the dimensions, a drawing or a worn-out sample together with your media, temperature and pressure — our engineering team will come back with the fastest possible quotation and lead time.