Rigid-Tactile HMI Solutions

Plastic Key-Top Keyboards

Industrial-grade keyboards that combine the premium, solid feel of rigid injection-molded plastic keycaps with the underlying environmental sealing of a silicone rubber membrane gasket. Delivers a tactile mechanical-style keystroke while preserving IP65/IP66 splash-proof safety.

Injection-Molded ABS/PC IP65 Underlying Gasket Crisp Tactile Keystroke
Plastic Key-Top Keyboards
Rigid Plastic CapsABS / Polycarbonate keytops
Elastomer SubstrateUnderlying silicone gasketing
Custom Key LegendsDouble-shot or laser-etched
Rigid KeycapsABS & Polycarbonate
Up to 10MSwitch Operations
IP65 SealedSubstrate Gasketing
Double-Shot / LaserWear-Proof Legends
Longer Travel1.5mm - 3.5mm Travel
Key Features

Mechanical-feel key tops with complete liquid barriers

Designed to deliver high-performance key travel, customizable legending, and extreme splash protection for industrial control stations.

Rigid Keycap Surface

Molded from impact-resistant ABS or PC plastic, providing a solid mechanical key feel that resists heavy typing wear.

Underlying Rubber Gasket

A continuous silicone elastomer membrane lies beneath the keycaps, acting as a gasket to prevent dust and oil from entering the PCB.

Crisp Tactile Feedback

Incorporates calibrated elastomeric webbing or metal click domes to ensure a sharp, tactile rebound and positive keypress confirmation.

Illumination Options

Translucent polycarbonate keycaps coated and laser-etched, allowing bright, uniform LED backlighting for low-light environments.

Double-Shot Mold Legends

Supports double-shot injection molding where characters are molded as part of the keycap itself, rendering them completely wear-proof.

Industrial Ruggedness

Engineered to withstand heavy-use environments such as factory floor consoles, marine navigation bridges, and healthcare terminals.

Plastic Key-Top Keyboard Assembly
Hybrid Rigid-Elastomer HMI

Solid mechanical key tops with complete environmental defense

Keetronics plastic key-top keyboards offer the perfect bridge between traditional mechanical typing ergonomics and modern environmental sealing. By mounting rigid, injection-molded plastic keycaps over a seamless silicone rubber or membrane gasket layer, we construct interfaces that feel solid under heavy typing while remaining completely protected against fluid spills, grease, and dust ingress.

  • Solid ABS or polycarbonate keycaps with ergonomic finger recesses
  • Seamless rubber substrate beneath acting as an ingress barrier
  • Available with custom graphics, colors, and double-shot moldings
  • Integrated backlighting and status indicator LED integration
Technical specifications

Technical Metrics

Switch Technology

Switch typePlastic key on elastomer
Key travel1.5mm to 3.5mm
Actuation force1.2N to 2.8N (Tuned)
Switch lifecycleUp to 10 million cycles
Contact structureCarbon pill / Metal dome

Material & Build

Keycap materialABS / Polycarbonate (PC)
Substrate skinPremium Silicone Rubber
Marking methodDouble-shot / Laser etched
Support plateAluminium / Stainless Steel
Interface PCBFR4 Double-sided PCB

Environmental

Ingress sealingIP65 / IP66 rated sealing
Chemical resistanceOils, Greases, Solvents
Operating temp.−40 to +85°C
Impact resistanceHigh impact ABS structure
Ingress testMIL-STD-810H compliant

Electrical & I/O

I/O interfacesUSB 2.0 / PS/2 / RS-232
Contact resistance< 100 Ohms (carbon pill)
Operating voltage5V DC
ESD protection15kV air discharge
OS compatibilityWindows, Linux, Embedded
Switch Engineering

Rigid-elastomer stack layout

RIGD
ABS / PC Keytop

Rigid, injection-molded keytops that provide the classic mechanical key click feel and excellent finger guide.

ELAS
Silicone Webbing

Underlying elastic membrane that cushions key travel and provides tactile rebound force.

CONT
Conductive Pill

Secure carbon pills or metal dome modules embedded on key bottoms to close PCB trace contacts.

FRAM
Metal Support Plate

Backplate milled from solid metal that stabilizes the keycaps and guides vertical travel.

Configure to spec

Optional additions

Customize lighting, feedback options, and surface detailing.

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Double-Shot LegendsCharacters molded in a contrasting plastic color so they can never wear or fade.
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Interchangeable KeycapsKeycaps can be easily customized or replaced for custom language layouts.
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Glow-in-the-Dark LegendsPhosphorescent paint or pigments applied inside keycaps for passive visibility.
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Custom Backlight ColorsPWM dimming control on red, amber, green, or blue LED key illumination.
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Antimicrobial CoatingsPlastic keycaps infused with silver ion agents to inhibit bacteria in clinical use.
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Integrated TrackballsOption to mount trackball modules within the rigid keyboard bezel.
Applications

Where it is used

Factory Floor Consoles
Maritime Workstations
Medical Terminals
Military Control Panels
Public Access Kiosks
CNC Machining Panels

Ready to integrate plastic
key-top keyboards?

Tell us your layout configurations, keycap lettering designs, mounting options, and connectivity interface protocols - we will engineer the custom interface.

Rigid mechanical key layouts
IP65 sealed elastomer substrate
Double-shot or laser markings
32+
Years
Experience
2000+
Projects
Completed
1000+
Satisfied
Clients

Trusted by leading organizations across defence, medical, industrial, and railway sectors worldwide.