Custom silicone molded seals are developed around the actual sealing interface between housings, covers and mating components. Geometry, compression, hardness, surface condition and material requirements can be specified according to the installation structure, operating environment and cleanliness requirements of medical or appliance assemblies.
A molded seal should be defined by how it contacts and compresses between mating components. Profile geometry, installation space, compression, surface condition and inspection requirements can be reviewed together with the equipment interface.
Raised lips, stepped sections, grooves and other molded profiles can be developed to match the sealing surface and available installation space.
Seal height and cross-section are selected around the installed condition to provide contact without excessive deformation or assembly force.
Housing gaps, groove dimensions, contact width and surrounding features are reviewed to reduce leakage paths, movement and poor seating.
Surface finish, parting-line position and visible appearance can be specified for exposed or cleanliness-sensitive equipment assemblies.
Silicone grade and hardness are selected according to temperature, media exposure, compression behavior and applicable compliance requirements.
Critical dimensions, surface condition and agreed appearance criteria can be defined before samples move into repeat production.
Seal specifications are reviewed around the mating interface, installed compression and operating conditions rather than material properties alone.
| Seal Design Specifications | |
|---|---|
| Product Type | Custom Molded Silicone Seal |
| Seal Profile | Lip, stepped, grooved or application-specific profile |
| Critical Dimensions | Defined by drawing and mating interface |
| Contact Width | Specified according to sealing surface |
| Compression | Defined according to the installed condition |
| Hardness | Selected according to compression and assembly requirements |
| Silicone Grade | Selected according to operating and compliance requirements |
| Operating Conditions | Temperature, media and cleaning exposure to be specified |
| Color | Standard or project-specific |
| Surface Requirements | Defined according to sealing and appearance needs |
| Compliance Options | FDA, NSF, RoHS or REACH where applicable |
| Inspection | Critical dimensions and agreed appearance criteria |
Before repeat production, the seal can be reviewed against the mating interface, installed condition and agreed inspection requirements.
Interface Review
Fit & Compression Check
These seals are used where housings, covers and mating components require controlled contact, clean installation and application-specific sealing geometry.
Used between covers and housings where controlled compression, clean surfaces and consistent installation are required.
Installed between covers, panels and mating housings to maintain contact while accommodating normal assembly variation.
Molded profiles can be used around equipment interfaces where contact geometry must help control potential leakage paths.
Suitable for assemblies that may be opened and reinstalled and therefore require appropriate elasticity and compression recovery.
Custom seal development can move from interface review to molded samples and repeat production using agreed dimensional, surface and material requirements.
Seal profile, mating dimensions, available compression space and critical tolerances are reviewed before tooling.
Initial molded samples can be checked for fit, compression, critical dimensions and agreed surface requirements.
Dimensional, visual and material acceptance requirements can be defined according to the application and customer specification.
Approved tooling, material specifications and inspection requirements can be maintained for subsequent production batches.
For covers, plugs and other non-sealing molded components, see our non-sealing silicone molded components. For cable pass-through applications, see our silicone cable grommets.
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