Silicone Seals & Gaskets
Custom molded sealing components for enclosures, equipment interfaces, and controlled assemblies.
Sealing Programmes Built Around Geometry and Compression Control
SIKING builds molded silicone sealing components for enclosure, connector, equipment, and cleanable-device programmes where geometry, compression behavior, and inspection requirements need to be reviewed together.
This family covers O-ring style parts, face seals, compression seals, and custom geometries. Early review should focus on mating surfaces, hardness, inspection, and release volume.
- Custom sealing geometries reviewed from customer drawings or reference samples
- Silicone can be specified within the published 0-90 Shore A range
- Large-format molding available up to 800x1200mm where the layout requires it
- Tooled-part MOQ: 1,000 units, with DFM / FAI / sampling support below MOQ
Common Sealing Directions
These categories clarify geometry and programme fit, not off-the-shelf stock.
O-Rings & Circular Seals
Used where the sealing job is defined by a closed loop and consistent compression path.
Face Seals & Flange Gaskets
Used when the seal sits between flat mating surfaces and has to follow a panel, lid, or flange layout.
Compression Seals
Used where the part has to manage both sealing and controlled compression inside the final assembly.
Custom Molded Geometries
Used when the sealing line follows a product-specific shape rather than a standard ring or flat gasket.
What Procurement and Engineering Should Lock Early
| Planning Input | What to Confirm | Why It Matters |
|---|---|---|
| Interface geometry | Mating surfaces, groove or flange dimensions, and critical sealing-path details | Sets tooling direction and inspection checkpoints |
| Hardness window | Target firmness within the published 0-90 Shore A range | Affects compression behavior and assembly fit |
| Operating environment | Heat, fluid, dust, cleaning, or other exposure conditions | Guides material review and qualification planning |
| Inspection plan | Critical dimensions, leak or fit checks, and lot-trace expectations | Prevents release against vague acceptance rules |
| Commercial release | Annual volume, MOQ, and whether the first step is sampling or production release | Sets the right path for tooling and launch timing |
Where These Sealing Components Commonly Fit
Enclosure Perimeter Sealing
Gasket layouts that follow lids, covers, or panel boundaries where consistent compression and dimensional control matter.
Equipment Interface Seals
Parts used between adjacent components where the seal also has to respect mechanical stack-up and assembly handling.
Electrical & Connector Protection
Custom sealing geometries that help protect interfaces against dust, moisture, or uncontrolled fit variation.
Cleanable Device Assemblies
Sealing parts for equipment where controlled surfaces and predictable maintenance handling matter as much as geometry.
Drawing Review, Tooling Alignment, Then Controlled Molding
Custom sealing programmes begin with the part drawing and mating interface details. Once geometry and compression targets are clear, tooling and molding can be set against the right inspection plan.
- In-house tooling review backed by 8,000+ historical molds
- 20+ compression presses across 200-400T capacity
- 400-ton large-format press supporting layouts up to 800x1200mm
- Inspection criteria matched to the sealing role in the final assembly
Need a Custom Sealing Review?
Send your drawing, gasket outline, or interface notes. We will review geometry, hardness window, and the next commercial step before tooling is released.