Custom molded rubber gaskets are designed for static sealing between flanges, housings, covers and other mating surfaces. Hongjie develops gasket profiles around the joint geometry, target compression, groove dimensions, bolt pattern, sealing media and operating temperature. Send a drawing, sample or interface dimensions for material and tooling review.
Molded rubber gaskets are designed to compress between fixed mating surfaces such as flanges, housings and covers. Profile geometry, groove dimensions, bolt layout and compound are developed around the joint rather than treated as a general-purpose rubber part.
Section thickness and profile can be matched to the target compression and available sealing land.
Molded sections can follow groove width, depth and local geometry around the sealing path.
Bolt holes and locating features can be molded to match flange and housing fastener layouts.
Raised beads, lips, steps and irregular outlines can be developed around the actual mating surfaces.
Compound selection can be reviewed against oil, water, coolant, air, gas and service temperature.
Tooling can be developed from 2D drawings, 3D data, samples or mating-interface dimensions.
For a flange or housing gasket, the joint conditions matter as much as the outside dimensions. Provide the sealing interface, target compression, groove, fastener layout, media and operating temperature for review.
| Product Specifications | |
|---|---|
| Product Type | Molded Rubber Flange & Housing Gasket |
| Sealing Type | Static compression sealing |
| Interface | Flange, housing, cover or mating surface |
| Profile Inputs | Outside dimensions, thickness, sealing width and section geometry |
| Compression Target | Defined by joint design and gasket section |
| Groove | Width, depth and geometry when groove-mounted |
| Bolt Pattern | Hole diameter, quantity, spacing and position |
| Sealing Media | Oil, water, coolant, air, gas or project-specific fluid |
| Operating Temperature | Specify minimum, maximum and continuous temperature |
| Hardness | 10–90 Shore A |
| Materials | NBR, EPDM, FKM, HNBR, Silicone, Fluorosilicone, Neoprene, ACM, AEM |
| Compound Standard | ASTM D2000 support available |
| Compliance Options | UL, FDA, NSF, RoHS, REACH |
| Tooling | In-house tooling; 2 CNC machines operating 24H per day |
| Inspection | Dimensional and visual inspection; AQL or C=0 criteria as required |
Use the joint geometry to separate molded flange and housing gaskets from flat die-cut parts, mounting gaskets and continuous sealing profiles.
| Gasket Construction Guide | |
|---|---|
| Molded Flange & Housing Gaskets | For three-dimensional profiles, raised beads, molded lips, stepped sections and static flange or housing joints. |
| Die-Cut Gaskets | For flat sheet parts with uniform thickness and two-dimensional outlines. |
| Grommet-Style Mounting Gaskets | For panel openings, mounting holes and parts that locate around an edge or opening. |
| Continuous Sealing Profiles | For long sealing paths around doors, cabinets, panels or equipment edges. |
In-house CNC tooling supports molded gasket development from interface review through first molded samples before batch production.
First Sample Lead Time
CNC Tooling Operation
These applications share the same design logic: a molded gasket is compressed between fixed mating surfaces, with the sealing path defined by the flange, housing, cover or groove.
Static gaskets for covers, housings and bolted joints where oil, heat or assembly compression must be considered.
Molded profiles for fixed covers and enclosure joints that require a defined sealing path.
Custom gasket sections for appliance covers and housings with controlled fit and compression.
Raised beads or molded lips can follow irregular mating surfaces around fixed covers.
Bolt holes, locating features and sealing beads can be integrated around flange-style static joints.
Development starts from the joint requirements. Drawings, groove dimensions, compression targets and media are reviewed before tooling, followed by sample evaluation and agreed production inspection.
Review mating-surface dimensions, gasket section, groove details, bolt pattern and critical tolerances.
Select compound and hardness according to media, temperature and the compression expected in the assembled joint.
Initial molded samples can be checked for dimensions, fit, surface condition and profile conformity.
Production inspection can cover critical dimensions, appearance, material identification and drawing-defined acceptance criteria.
Explore complementary sealing solutions from our comprehensive product catalog.
Our engineering team reviews your specs and responds within 24 hours with material recommendations and competitive pricing.
