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Product Description
Photoluminescent (glow-in-the-dark) L-shaped bolt-down anti-slip plate for stair nosings and platform edges. The L-profile wraps the tread edge for maximum coverage; the Safety-Grip glow surface charges under ambient light and glows for hours after power loss.
Ideal for: emergency stair nosings, low-light platform edges, egress routes, and any high-load stair-edge application.
Size: 4.7"x1.7"x25" (L-shape profile, 25" length).
Key features: pre-drilled for bolt-down install, forklift-rated, photoluminescent anti-slip coating, meets low-light egress marking requirements.
Technical Specifications
| Manufacturer | Heskins Ltd. (Rotherham, United Kingdom) |
|---|---|
| Manufacturer Part Number | H3409GID-L |
| Country of Origin | United Kingdom |
| Product Type | Photoluminescent L-Shape Bolt Down Stair Plate |
| Base Plate Material | 1.6mm (1/16") weatherproof aluminum |
| Anti-Slip Coating | 1mm aluminum-oxide-coated PVC |
| Mounting Hole Count | 6 to 8 pre-drilled countersunk holes |
| Installation | Pre-drilled countersunk mounting holes — screw or bolt to substrate |
| Temperature Range | -30°C to +70°C (-22°F to +158°F) |
| Coefficient of Friction (Wet) | Standard 0.98 · Coarse 0.95 · X-Coarse 0.97 |
| Water Resistance | 10 months (PSTC-35 test method) |
| Chemical Resistance | 8 months (PSTC-35 test method) |
| Oil Resistance | Excellent (PSTC-35 test method) |
| Best For | Emergency egress stairs, power-outage visibility, low-light industrial stairs, marine gangways, evacuation routes |
| Compliance | Photoluminescent output tested by Luminous Technologies Ltd; suitable for IMO A.752 and ISO 17398 style emergency-egress marking |
Frequently Asked Questions
What makes these plates 'glow-in-the-dark'?
The top surface is a photoluminescent Heskins Safety-Grip coating — a specialty aluminum-oxide-coated PVC that absorbs ambient light (natural daylight or normal indoor lighting) and re-emits it as a yellow-green glow when the light source is removed. No electrical wiring, no batteries, and no radioactive material — the glow works purely by photoluminescent chemistry, so the plates keep glowing during power outages and in emergency evacuations.
How long do they glow after the lights go out?
Independent testing by Luminous Technologies Ltd shows measured output of 30 millicandela per m² at 2 minutes and 5 mcd/m² at 10 minutes — well above the visibility thresholds required for emergency-egress marking. In practical terms, the plates glow visibly for several hours after lights out, with peak brightness in the first 20–30 minutes and gradually decreasing brightness over the following hours.
Where should I use L-shaped glow plates?
Anywhere a stair nosing needs both slip resistance and low-light visibility: emergency egress stairs in industrial and commercial buildings, marine vessel gangways and stair wells, power-outage evacuation routes in hospitals and hotels, outdoor stairs at rural or off-grid sites, and any stair where an evacuation could happen in low-light or smoke-filled conditions.
What size and shape is the L-plate?
4.7" x 1.7" x 25" (120mm x 45mm x 635mm) — a 4.7" tread section, a 1.7" vertical stair-nose wrap, and a 25" run length. The 90° L-profile places the glow anti-slip surface on both the top of the step and the leading vertical face, so descending foot traffic sees a glowing edge line even in complete darkness.
How is a glow plate installed?
Identical to the standard L-shaped plate: 6–8 pre-drilled countersunk mounting holes, screwed to wood or concrete with #10/#12 stainless screws or Tapcon-style concrete anchors. No adhesive, no wiring, no batteries. Once installed the plate begins charging under any ambient light and is fully charged after about 15 minutes of light exposure.
Do these meet emergency-egress marking codes?
The photoluminescent output has been tested by Luminous Technologies Ltd, England, and meets the visibility criteria for IMO A.752 (marine emergency-egress marking) and ISO 17398 (safety-color photoluminescent marking). Local building codes vary — verify with your AHJ (Authority Having Jurisdiction) whether these plates fulfill IBC/NFPA egress-marking requirements for your specific installation. Documentation available on request.
Will the glow surface wear out?
The photoluminescent capability itself does not degrade with normal use — photoluminescent pigments retain their glow properties for the life of the coating. What can wear is the aluminum-oxide top layer under heavy traffic; independent testing shows 24+ months of surface life under continuous heavy loading (PSTC-9). When the surface eventually wears, install a GID Replacement Anti-Slip Pad instead of replacing the whole plate.
What temperature and weather range are they rated for?
Rated for -30°C to +70°C (-22°F to +158°F). Excellent resistance to motor oil, 10-month water resistance, and 8-month chemical resistance (PSTC-35 test method). The aluminum base plate is weatherproof and does not tarnish. Suitable for outdoor emergency stairs, marine environments, and industrial process areas.
