Controller box:
• Casing sealing scheme for electronic equipment control systems
• Salt spray cycle 480h test is required
• Splash oil test
• Permanent compression deformation is small.
• It can be returned and dismantled.
| Rx | JOMS 1820 | JOMS 1830（ H50） |
| type | Single component molding silicone | Two-component molding silicone |
| characteristic | • Single-component ointment• The color istransparent/white/grey/black• Hardness A38• Low compression permanent deformation• Rapid curing 150 degrees 25min | • Two-component addition molding• 1:1 mixing mass ratio• Hardness A50,• Solidify at 80 degrees for 2 hours• Most materials have adhesion to no primer• The elastomer properties are maintained at-54℃ |
Controller box:
• Casing sealing scheme for electronic equipment control systems
• Salt spray cycle 480h test is required
• Splash oil test
• Permanent compression deformation is small.
• It can be returned and dismantled.
CIPG Process
CIPG assembly in electronic equipment control systems. Dispense the gasket bead onto the housing flange, cure the bead, position the mating cover and fasteners, then tighten the screws to complete the assembly. The original process illustration shows heat or ultraviolet light at the curing stage; the appropriate curing method depends on the selected material.
Electronic control applications
| WK988 | JOMS 1820 | |
| component | 1k | 1k |
| dynamic viscosity | 440000mPas 0.5s | ] pasty propellant rocket engine |
| dynamic viscosity | 34000mPas,25s | ] pasty propellant rocket engine |
| pigment | gray | gray |
| density | 1.1 | 1.06 |
| hardness | 35A | 33A |
| tensile strength | 4.5Mpa | 4MPa |
| elongation at break | 350% | 350% |
| tear strength | 24N/mm | 35N/mm |
Chip cooling
• Electronic equipment control systems: chip heat dissipation solution
• Small batch portability
• long-term storage
• Customized cutting
• Thermal conductivity 3w, thickness 1mm
• Recommended compression of 20-30%
• Customer groups: Lg Innotech, Neusoft, Valeo, Continental, Lear, Jingwei Hengrun
| Rx | JOMG 30 | JOMG 500 |
| type | 1-5W/ mk0.5-3mm thickness | 5-14W/ mk1-8mm thick |
| characteristic | • Thermal conductivity 3W/ mk• PI film composite, soft and compressible• Excellent insulation performance• Working temperature- 40/200 degrees• Customized cutting• Flame retardant V0 | • Thermal conductivity 5W/ mk• Double-sided self-adhesive• high compression ratio• Working temperature-50/200 degrees• Customized cutting• Flame retardant V0 |
The heating element dissipates heat
• Thermal gel in electronic equipment control systems
• Good wrapping of the opposite sex, higher thermal conductivity
• Mass production is more efficient and the overall cost is reduced
• 2.5w thermal conductivity client base ：
• Asustek/Garuda, Desay SVI, Flextronics, Ambof, Coboda, Jingwei Hengrun
| Rx | JOMS 1925 | JOMS 1960 |
| type | Two-component thermal conductive filler | Two-component thermal conductive filler with a maximum of 8W/ mk |
| characteristic | • Two-component 1:1• blue• Density 2.95• Hardness 00 70• Heat transfer 2.5W/ mk• Flame retardant V0• Temperature resistance-60/200• Curing at room temperature for 5h | • Two-component 1:1• pink• Density 3.9• Hardness 00 8• Heat transfer 6W/mk• Flame retardant V0• Temperature resistance-60/200• Curing at room temperature for 1.5h |
Controller element positioning
Component positioning in electronic equipment control systems, quick curing, single component. JOMS1859 competitor: DC 7091
Oil resistant element positioning, long term oil resistant, single component. JOMS 1859
| Rx | JOMS 1859 |
| type | Single component silica gel |
| characteristic | • Single component• 15 minutes of surface drying• Hardness A40• quick positioning• Can be used in FIPG process• oil proof• Temperature resistance-60/300 degrees |
| DC 7091 | JOMS1859 | |
| surface | Non-flowing paste | Pasty |
| pigment | Black, white and gray | White / dark grey / black |
| Drying time | 28 | 15 ± 5 |
| durometer-hardness A | 32 | 40 ± 5 |
| tensile strength | 2.5 | 2.8±0.3 |
| Extensional elongation | 680 | >400 |
The surface of a PCB circuit board is covered with three protective layers
• PCB protection in electronic equipment control systems: soft three-layer protection, detachable, fast UV curing, this
Light-colored areas can be slowly cured through humidity. Use 9060M
High-strength protective film, heat-resistant, high adhesive strength, wear-resistant and solvent-resistant. Use 5007
| Rx | JM 9060M | JOMS 9007 |
| type | UV/water resistance | Single component silicone resin |
| characteristic | • A pale yellow liquid• Viscosity 200mPas• Solid content> 99%• Working temperature-65/135• Flame retardant V0 | • Single component• transparent• Viscosity 800mPas• Solid content 70%• Surface curing at room temperature for 15min• Hardness A80• Temperature resistance-60/200 degrees |
Cavity potting
• Cavity fill for electronic equipment control systems: 0.8W polyurethane potting compound. Costar.
• 1.5W silicone potting compound. Vmax, Huichuan
• 2W silicone potting compound. Huichuan
• 4W silicone potting compound. Tesla
| RxSolution | JOMP 1680 A/B | JOMS 8250 A/B series |
| type /Type | Polyurethane potting compound No return to the original place | Silicone potting compound 1.5-4W/ mk |
| characteristic Features | • 100:16• Hydrostatic viscosity 1400 mPas• Hardness A85• Thermal conductivity 0.8 W/ m.k• Temperature resistance-50/130C• High bonding strength• Flame retardant V0 | • 1:1 molding• Thermal conductivity 1-4 W/ m.k• Temperature resistance-60/200C• Certain bonding strength• Flame retardant V0 |
Vehicle control module groups. The application overview groups the T-Box (communications unit) with the smart cockpit and vehicle domain. It also shows the digital instrument cluster, BCM (body control module), BMS (battery management system), ECU (electronic control unit) and chassis systems. These are distinct module groups; identify the housing seal, component-fixing and board-protection duties for each assembly separately.
Separating adhesive duties in electronic equipment control systems of new energy vehicles
Electronic equipment control systems in new energy vehicles contain several material interfaces with different duties. The housing seal controls the environmental boundary, the thermal interface connects selected devices to cooling surfaces, component fixing manages movement, and board protection addresses exposure around electronics. Treat these as separate design decisions even when they occupy the same enclosure. Specify the required function at each location before considering a formulation. A material suitable for filling a cooling gap has not automatically demonstrated that it can seal the housing or retain a heavy component.
Enclosure joints and connector boundaries
At enclosure joints in electronic equipment control systems of new energy vehicles, inspect flange flatness, coating condition, and the way fasteners bring the surfaces together. Local distortion can leave a different joint near a corner from the joint between fasteners. The dispense pattern must create the intended continuous path after assembly. Include connector boundaries and cable entries in the review because these can remain separate ingress routes. Evaluate seal behavior on representative housings rather than assuming that a satisfactory bead on a flat plate describes the assembled control unit.
Where service is planned for new energy vehicles, define how a sealed control enclosure will be opened and rebuilt. A cured gasket compressed during assembly presents a different removal process from material that bonds opposing faces as it cures. Check the proposed tools, access, and surface cleaning after opening. Include the reassembled enclosure in the verification plan if reuse is intended. Otherwise, a design may be easy to seal initially but difficult to service without damaging a flange, coating, or nearby connector.
Heat transfer without unintended component loading
In electronic equipment control systems of new energy vehicles, trace the path from each heat-producing device through the interface to the cooling structure. Consider installed gap variation and whether the thermal material applies force to a component or board. The thermally conductive adhesive range provides candidates for evaluation, with joint geometry and retention needs determining the relevant comparison. A soft interface can accommodate uneven surfaces, but its mechanical role must still be defined. Inspect contact distribution and board movement during representative assembly.
When mounting components for new energy vehicles, distinguish temporary positioning from retention through operating exposure. A fixture may establish alignment until cure, while the finished bond must tolerate the movement assigned to it. Heavy or projecting components can place stress at a bonded edge rather than loading the attachment uniformly. Check the actual orientation and supporting structure. It’s useful to examine the load path before enlarging a bead, because adding material does not necessarily change the stress concentration that caused the failure.
Validating protection processes for vehicle control electronics
Coating access, encapsulation, and cure
For protected boards in electronic equipment control systems of new energy vehicles, keep conformal coating and encapsulation specifications distinct. Coating can cover accessible board surfaces; potting occupies a selected volume and can change component support and repair access. Review the potting and encapsulating compound category against the intended fill geometry. Mask electrical contacts and preserve features that must remain accessible. Inspect beneath tall components and around connectors, where an exposed surface can look complete while hidden areas remain unfilled.
If a light-curing process serves new energy vehicles, evaluate whether light reaches the material that must cure. Components, housing walls, and connectors can create shadows. Do not assume that humidity will cure those areas unless the selected material has a documented secondary cure mechanism. Verify that mechanism in the representative assembly when it is part of the process. Separate surface appearance from internal cure evidence, particularly where the protective material extends under a component or into an enclosed interface.
With mixed materials for new energy vehicles, check the specified proportioning basis, mixing quality, and equipment compatibility. Residue from a different material or cleaning process can affect adhesion or cure. Test representative substrates and contact materials before fixing the production sequence. Follow the selected material’s technical instructions rather than adopting another formulation’s processing conditions. An opened development sample helps assess internal mixing and filling. Keep a reference made under controlled conditions to support investigation of local cure differences.
Use representative assemblies and consistent observations
What does a neat bond in new energy vehicles demonstrate if the electronics fail after movement or heating? Record electrical and thermal behavior before applying protection, after cure, and after relevant conditioning. Use the intended housing, connector arrangement, and mounting method in those trials. Keep measurement locations and operating conditions consistent when comparing candidates. This connects the material decision to the control system’s function rather than treating visible adhesion as the only evidence needed for acceptance.
For installed control systems in new energy vehicles, choose environmental exposures from the actual installation location. A fluid reaching an exposed housing seal may differ from contamination trapped beside a component during assembly. Vibration and thermal movement can affect the bond and the parts it constrains. After conditioning, inspect interfaces for separation or cracking and repeat the relevant functional checks. Material family alone does not establish automotive qualification, and a trial on an isolated specimen does not describe every interface in the control unit.
When a protected assembly for new energy vehicles changes, review whether the validated material process still applies. A new component height can alter the thermal gap; a different coating can change adhesion; a revised connector can move a leak path. Retain drawings, surface preparation, masking, dispense patterns, and cure observations with the test results. If a failure occurs, locate the interface and reproduce the suspected cause before changing formulations. That makes the next trial answer a defined engineering question.
Selection of the right grade from the full JOME product catalogue usually starts with drawings and service conditions. The companion piece on The scheme for the adhesive application areas sits alongside this guide, the the JOME adhesive manufacturer profile lists every family, and the contact JOME for project review handles enquiries.