NAP50CK | NAKA CORPORATION, JAPAN
STAIR NOSING WITH LUMINOUS BAND
ENHANCED STEP-EDGE VISIBILITY FOR LOW-LIGHT ENVIRONMENTS
The NAKA HI-STEP SLIM CK NAP50CK is a premium aluminium stair nosing system incorporating photoluminescent bands and an anti-slip vinyl insert.
Designed to improve step-edge visibility in low-light environments, it provides clear stairway guidance while maintaining a slim, contemporary architectural profile.
The luminous bands absorb ambient light and emit an afterglow when surrounding lighting is reduced, enhancing step-edge identification without requiring electrical power.
Combining practical functionality, slip-resistant properties and architectural aesthetics, the system is particularly suitable for auditoriums, cinemas, theatres, concert halls, lecture theatres, museums, galleries and other commercial or public environments where lighting is intentionally subdued.
AVAILABLE SERVICES
Supply Only | Supply & Installation | Technical Consultation | Sample Submission
NAP50CK
Stair Nosing with Luminous Band · Before & After
Key Product Benefits
- ENHANCED STEP-EDGE VISIBILITY — Improves the identification of stair edges in low-light environments.
- NO ELECTRICAL POWER REQUIRED — Photoluminescent bands absorb light and provide an afterglow without electrical connections.
- ANTI-SLIP PROTECTION — Incorporates an anti-slip vinyl insert to improve grip and walking confidence.
- SLIM ARCHITECTURAL DESIGN — Premium aluminium construction with a clean, contemporary appearance suitable for modern interiors.
St. Joseph’s Institution Auditorium
NAKA HI-STEP SLIM CK NAP50CK · Stair Nosing with Luminous Band
Designed for Low-Light Environments
Versatile Stair Nosing Solutions for Architectural & Public Spaces
The NAKA HI-STEP SLIM CK NAP50CK is designed for stairways where clear step-edge identification, slip-resistant performance and architectural appearance are important considerations.
Its integrated photoluminescent bands provide visible step-edge guidance when surrounding lighting is reduced, making the system particularly suitable for environments where lighting is intentionally subdued or where additional visual guidance is beneficial.
Combining a slim aluminium profile with an anti-slip vinyl insert, the system can be incorporated into a wide range of commercial, institutional, entertainment and public building applications.
Recommended Applications
Designed for Interior & Low-Light Environments
01 | AUDITORIUMS & THEATRES
Provides visible step-edge guidance along auditorium aisles and stairways during performances, presentations and events where ambient lighting is intentionally reduced.
02 | CINEMAS & CONCERT HALLS
Enhances step-edge identification in darkened entertainment environments, supporting pedestrian movement along seating aisles and access stairways.
03 | LECTURE THEATRES & EDUCATIONAL INSTITUTIONS
Suitable for lecture halls, school auditoriums and university facilities where lighting levels may be reduced during presentations, screenings or performances.
04 | MUSEUMS, GALLERIES & EXHIBITION SPACES
Provides discreet luminous guidance in exhibition environments where controlled lighting is used to enhance displays and architectural presentation.
05 | HOTELS & HOSPITALITY VENUES
Suitable for function rooms, ballrooms, entertainment facilities and other hospitality spaces where aesthetic integration and stairway visibility are important.
06 | COMMERCIAL & PUBLIC BUILDINGS
Can be considered for internal staircases, basement access routes and designated circulation areas where additional step-edge visibility is beneficial, subject to project requirements.
ARCHITECTURAL INTEGRATION
With its slim aluminium construction and integrated luminous bands, the NAKA HI-STEP SLIM CK NAP50CK complements contemporary architectural interiors without compromising the overall design intent.
NAKA HI-STEP SLIM CK
NAP50CK · Stair Nosing with Luminescent Bands
Slim Profile. Luminous Guidance. Anti-slip Performance.
NAKA Hi-Step SLIM CK NAP50 CK is a slim-profile aluminium stair nosing incorporating an anti-slip vinyl tyre and photoluminescent luminous bands. The luminous material stores energy from ambient light and provides a visible afterglow in low-light or dark conditions, helping to identify the stair edge and change in level.
The profile is manufactured from extruded aluminium A6063S-T5 and is available with anodized silver or black frame finishes.
Technical Data & Key Features
Technical Data
| Model Number | NAP50 CK |
|---|---|
| Material (Base) | Extruded Aluminium A6063S-T5 |
| Vinyl Tyre | Extruded ABS Plastic (Anti-slip) |
| Luminous Band | Soft Resin with Luminous Pigment |
| Dimension | 50 (W) × 24 (H) × 3.5 (T) mm |
| Finish | Anodized Silver or Anodized Black |
| Slip Resistance | R10 |
Key Features
01
Integrated Luminous Bands
Integrated photoluminescent luminous bands enhance stair-edge visibility in low-light conditions.
02
Afterglow at 60 Minutes
Afterglow luminance of 17–21 mcd/m² after 60 minutes under the manufacturer’s stated test conditions.
03
Extended Luminous Visibility
Luminous visibility reported at 3 mcd/m² for 5 hours or more under the manufacturer’s stated test conditions.
04
R10 Slip Resistance
R10 slip resistance with an anti-slip extruded ABS vinyl tyre.
05
Slim Aluminium Profile
Extruded aluminium A6063S-T5 base in a slim 50 × 24 × 3.5 mm profile.
06
Choice of Frame Finishes
Anodized silver or black frame options for architectural coordination.
Ideal for Interior & Low-Light Environments
Designed for interior stairways where enhanced step-edge visibility is required, particularly in areas with subdued or reduced ambient lighting.
Entertainment & Performance
Cinemas · Auditoriums · Theatres · Concert Halls · Performance Venues
Cultural & Education
Museums · Galleries · Lecture Theatres · Universities · Educational Facilities
Commercial & Hospitality
Hotels · Offices · Shopping Malls · Commercial Buildings · Hospitality Venues
Low-Light & Circulation Areas
Internal Staircases · Basement Access Stairways · Enclosed Staircases · Low-Light Circulation Areas
Available for Supply or Supply & Installation.
Luminous Performance & Visibility
Manufacturer-Reported Afterglow Performance
Visible Performance
| Elapsed Time | Reported Afterglow Luminance |
|---|---|
| 60 minutes later (*1) | 17–21 mcd/m² |
| 5 hours or more (*2) | 3 mcd/m² |
*1 Manufacturer test condition: the luminous band is kept without light for 24 hours, then illuminated at 200 lx for 20 minutes. The luminance reading is taken after 60 minutes.
*2 Time for luminance to reach 3 mcd/m² under the above conditions.
About the JIS Standard of Luminous Safety Sign
The supplied manufacturer information cites a JIS 9107 afterglow luminance reference of 7 mcd/m² after 60 minutes. The reported performance of HI-Step SLIM CK is above this reference.
Degree of Luminance and Brightness
The manufacturer identifies 3 mcd/m² as its minimum luminance for emergency escape guidance.
| Luminance (mcd/m²) | Perception with Some Dark Adaptation |
|---|---|
| 5 or more | Extremely bright, clearly observed |
| 3 | Observe things’ outlines |
| 2 | Blurring, somewhat observed |
| 1 or less | Hardly observed |
Product Performance & Durability
Manufacturer Test Information
Repetitive Fatigue Performance
2 million cycles without exceptional change
Method: Internal fatigue test
Device: Fatigue testing machine
Test content: 2 million cycles at 980 N, 40 cycles per minute
Reported result: Normal
Dimensional Stability
Elongation and contraction
Method: Dimensional stability test
Device: Heating experiment machine
Test content: Heating for 6 hours at 80°C ± 1°C; shrinkage reference 0.5 mm
Reported result: 0–0.6%
Weathering Performance
300 hours without exceptional change
Method: JIS-A-1415 “Exposed Testing Method of Plastic Building Material”
Device: Sunshine weather meter
Test content: 300 hours of sunlight exposure
Reported result: Normal
Results and test descriptions shown are from the supplied manufacturer information.
Supply Only or Supply & Installation
Choose the supply arrangement that suits your project.
Installation & Substrate Compatibility
Technical Documentation & Project Support
The NAKA HI-STEP SLIM CK NAP50CK can be considered for installation on various staircase finishes, subject to substrate condition, fixing requirements and project specifications.
Potential substrates include:
- Concrete and cementitious surfaces
- Porcelain tiles
- Marble and granite
- Timber
- Carpeted staircases
- Metal staircases
Installation generally involves suitable mechanical fixings together with compatible construction adhesive, where required.
Fixing methods and installation details should be assessed according to the staircase substrate, site conditions and manufacturer’s recommendations.
Technical Documentation & Project Support
Jinson Asia provides product information and technical coordination to assist architects, consultants and contractors with product selection and material submissions.
Our support includes technical consultation, product samples, site assessment, measurement and installation coordination.
Available for Supply Only or Supply & Installation.
Supply Only or Supply & Installation
Choose the supply arrangement that suits your project.
From Product Selection to Project Completion
Project Support from Start to Finish
Consultation · Samples · Site Assessment · Supply & Installation
Jinson Asia supports project requirements through product consultation, sample submission, site assessment, measurement, supply and installation coordination.
Our objective is to deliver practical stair nosing solutions that meet project specifications while maintaining consistent installation quality and architectural presentation.
