Ecoglo® F4251 Photoluminescent 2.7 Inch Black Anodized Flat Stair Nosing | Yellow Insert

Model F4251 • F4-E20 Series Ecoglo® F4251 Photoluminescent Black Anodized Flat Stair Nosing – Yellow Non-Slip Insert Improve step-edge visibility, stair traction and emergency egress safety with a durable 2.7-inch-wide photoluminescent stair nosing. The Ecoglo® F4251 Photoluminescent Flat Stair Nosing combines a durable 2.7-inch-wide black-anodized aluminum profile with protected photoluminescent step-edge strips and a high-visibility yellow silicon-carbide non-slip insert. Its right-angled profile fits over the leading edge of the stair to provide luminous guidance, dependable traction and physical protection for the stair edge. Designed for exit stairways, emergency egress routes, public stairs and commercial facilities, the F4251 absorbs energy from available natural or artificial lighting and remains visible after normal lighting is reduced or lost. It can be installed over concrete, timber, tile, steel, checker plate and suitable thin-carpeted stairs. Product Clarification The F4251 is a photoluminescent stair nosing. Its protected luminous strips absorb energy from normal ambient lighting and remain visible after the lights go out. The yellow silicon-carbide insert provides high-visibility color contrast and non-slip traction but is not itself the photoluminescent component. Final product selection and installation should be confirmed against the project specification and local code requirements. ✔ Model F4251 ✔ 2.7-Inch-Wide Profile ✔ Yellow Non-Slip Insert ✔ UL 1994 & ULC 572 Listed Visible After the Lights Go Out The protected photoluminescent strips absorb energy from natural or artificial light and remain visible when normal lighting is reduced or electrical power is lost. High-Visibility Yellow Contrast The yellow insert creates prominent step-edge contrast where it differs from the surrounding stair finish, helping occupants identify the leading edge of each step. Hard-Wearing Slip Resistance The silicon-carbide non-slip material is integrally bonded to the aluminum substrate to provide durable traction on heavily travelled commercial and public stairs. No Electricity Required The passive photoluminescent system operates without batteries, wiring or ongoing electrical energy consumption. Ecoglo® F4251 Product Configuration The F4251 combines a black-anodized aluminum profile, protected photoluminescent step-edge strips and a yellow silicon-carbide non-slip insert. Manufacturer Model F4251 Product Series F4-E20 Aluminum Finish Black Anodized Insert Color Yellow Recommended Applications Exit stairways Emergency egress routes Commercial buildings Public facilities Schools and universities Hospitals and healthcare Transit facilities Industrial facilities Compatible Stair Surfaces Concrete stairways Wood and timber stairs Tile stairways Steel stairs Checker plate stairs Thin carpeted stairs Technical Specifications Manufacturer: Ecoglo® Manufacturer Model: F4251 Product Series: F4-E20 Product Type: Photoluminescent flat stair nosing Base Material: 6063-T5 aluminum Profile Finish: Black-anodized aluminum Anodizing Specification: Type 2, Class 1 Anodized Coating: Approximately 20 microns Luminous Surface: Protected photoluminescent step-edge strips Non-Slip Surface: Integrally bonded silicon carbide Insert Color: Yellow Weight: Approximately 0.44 lb per linear foot Use: Indoor and outdoor stair applications Dimensions and Ordering Overall Width: Approximately 2.7 inches or 68 mm Non-Slip Insert Width: Approximately 1.5 inches or 37.3 mm Vertical Face: Approximately 1.3 inches or 33.3 mm Profile Depth: Approximately 2.6 inches or 65 mm Standard Lengths: 8 ft and 10 ft Custom Lengths: Available with a tolerance of ± 1/8 inch Insert Supply: Available attached or unattached On-Site Cutting: Unattached inserts are recommended when the aluminum profile will be cut on site Installation Information Install the F4251 using premium polyurethane adhesive with mechanical fasteners, or adhesive only, depending on the stair substrate and project requirements. Pre-Drilled Countersunk Holes Standard holes are positioned approximately 2 inches from each end and approximately 12 inches apart. Installation Hardware Pre-drilled profiles include stainless steel fasteners and concrete nylon anchors. Attached or Unattached Inserts Choose unattached inserts when the aluminum profile must be cut to the required length on site. Listings and Performance Testing The Ecoglo® F4-E20 Series is evaluated for photoluminescent brightness, indoor and outdoor durability, abrasion resistance, washability, radioactivity, toxicity and flammability. Refer to the current manufacturer data sheet and project documentation for complete test methods and listing information. ✔ UL 1994 and ULC 572 Listed ✔ Brightness tested to ASTM E2073 ✔ Photoluminescent testing to DIN 67510 Part 1 ✔ Safety-sign performance tested to ISO 17398 ✔ UV exposure tested to ASTM G155 ✔ Salt-spray resistance tested to ASTM B117 ✔ Freeze-thaw resistance tested to ASTM C1026 ✔ Abrasion tested to ASTM D1242 and ASTM F510 ✔ Anodized coating wear tested to JIS H8682 ✔ Washability tested to ASTM D4828 ✔ Radioactivity tested to ASTM D3648 ✔ Toxicity tested to Bombardier SMP 800-C ✔ Flammability tested to ASTM E162 and ASTM D635 Why Specify the Ecoglo® F4251? High-visibility step edge Combines prominent yellow step-edge contrast in normal lighting with photoluminescent guidance after normal lighting is lost. Passive emergency guidance Remains visible after a power failure without requiring batteries, wiring or emergency electrical power. Compact non-slip profile The 2.7-inch-wide profile provides luminous guidance and an approximately 1.5-inch-wide silicon-carbide non-slip surface. Black anodized durability The anodized finish helps protect the aluminum against corrosion, abrasion and demanding indoor or outdoor exposure. Energy-Free, Recyclable Stair Safety ♻ Zero electrical energy consumption ♻ Aluminum-based and 100% recyclable ♻ Approximately 20% recycled aluminum content ♻ Non-radioactive and non-toxic ♻ May contribute toward applicable LEED credits ♻ Recommended adhesive has low VOC content Frequently Asked Questions What is the Ecoglo® F4251? F4251 is the manufacturer model number for the Ecoglo® F4-E20 photoluminescent flat stair nosing with a black-anodized aluminum profile and yellow silicon-carbide non-slip insert. Does the F4251 glow in darkness? Yes. Its photoluminescent step-edge strips absorb energy from normal natural or artificial lighting and remain visible after the lights go out. Does the yellow insert glow? No. The yellow silicon-carbide insert provides non-slip traction and high-visibility color contrast. The adjacent protected strips are the photoluminescent components. Is the F4251 UL Listed? The manufacturer’s F4-E20 data sheet identifies the photoluminescent stair-nosing series as UL 1994 and ULC 572 Listed. How wide is the F4251 stair nosing? The overall aluminum profile is approximately 2.7 inches or 68 mm wide. The yellow non-slip insert is approximately 1.5 inches or 37.3 mm wide. Can the F4251 be used outdoors? Yes. The manufacturer identifies the F4-E20 Series for indoor and outdoor use and reports testing for UV exposure, salt spray and freeze-thaw resistance. What lengths are available? Standard lengths are 8 ft and 10 ft. Custom cut-to-length sizes are available with a tolerance of ± 1/8 inch. Which stair surfaces are compatible? The F4251 can be installed over concrete, timber, tile, steel, checker plate and suitable thin-carpeted stairs. Specify the Ecoglo® F4251 Select an available length or contact us for custom sizing, commercial project quantities, technical documentation and installation requirements. View Technical Data Sheet Request a Quote