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Rubber Plugs for Sealing & Hole Protection

Our factory makes rubber hole plugs, stoppers and caps for equipment and assembly work. Share the opening dimensions and service conditions so we can customize the fit and material.

Silicone plugs protecting precision machined ports
Blue plugs protecting an electrical cabinetHygienic processing pipework

Automotive

Automotive silicone plug application

Protect critical ports during machining, finishing and assembly.

Aerospace

Aerospace silicone plug application

Share component specifications and required qualification tests for a custom part review.

Industrial Equipment

Industrial Equipment silicone plug application

Durable protection for equipment built to perform.

Hydraulics & Pneumatics

Hydraulics & Pneumatics silicone plug application

Seal and protect ports and fittings in fluid power systems.

Electronics

Electronics silicone plug application

Shield components and connections during processing and testing.

Food & Beverage

Food & Beverage silicone plug application

Specify food contact conditions and required documentation for the exact compound and finished part.

Medical & Laboratory

Medical & Laboratory silicone plug application

Protect instruments and devices with clean, reliable sealing.

Plumbing & Water

Plumbing & Water silicone plug application

Protect pipe ends and openings from debris. Specify any sealing or pressure requirements.

What does the plug need to survive?

HeatWaterOil & FuelVacuumChemicalsRepeated Use

Silicone plugs for surface finishing

We make silicone hole plugs to protect bores and ports
during coating. Share the process temperature, chemicals and required paint line.

  • Compound selection for your curing cycle
  • Dimensions matched to the opening
  • Sample checks for paint bleed and coverage
  • Removal and reuse requirements reviewed
EXPLORE MASKING SOLUTIONS
Orange masking plugs beside a machined block

Match the environment to the right material

Application conditionWhat to send our factory
HeatContinuous and peak temperatures, plus cycle duration
WaterContact temperature, duration and pressure
Oil & fuelExact fluid, concentration and contact temperature
ChemicalsChemical name, concentration and cleaning cycle
VacuumPressure difference, leak target and assembly dimensions
Repeated useInsertion, removal and reuse cycles

Material suitability depends on the exact compound and service conditions. Compare stopper materials before specifying your part.

Applications to Discuss with Our Factory

Engine block machining
AUTOMOTIVE

Engine block machining

For machining and washing, specify the ports to protect, process fluids and any pressure tests. We can review a rubber hole plug design for the opening.

  • Define the required sealing checks
  • Review fluid contact and debris protection
  • Check insertion and removal on samples
DISCUSS A SIMILAR PROJECT →
Powder coat masking
INDUSTRIAL EQUIPMENT

Powder coat masking

For powder coating, send the hole geometry, curing cycle and paint line requirements. We can customize silicone rubber plugs around the features to protect.

  • Agree the masking boundary
  • Test coverage and removal
  • Confirm suitability for repeated cycles
DISCUSS A SIMILAR PROJECT →

Ready to start your project?

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