Polished White Fire-Rated Door

Structure of the NEXA White Polished Fire Door

Door Leaf and Frame:

• Steel body (galvanized sheet) – 1.0 mm thickness

• Steel frame (galvanized sheet) – 2.0 mm thickness

Decorative Surface:

• 8–12 mm decorative layer, available in MDF, polished glass, stone slab, or other refined finishes, offering a sleek, high-gloss white appearance

Core Insulation:

• Fireproof rock wool insulation with 120 kg/m³ density, providing superior fire and thermal protection

Internal Reinforcement:

• Tubular steel reinforcement frame inside the door for increased rigidity and stability against torsion and bending

Lock Reinforcement Plate:

• Galvanized steel reinforcement plate behind the handle area for enhanced strength and screw-holding capacity

Hinges:

• Four heavy-duty cylindrical steel hinges, three-piece design, specially engineered for fire-rated and vault doors

• Connection method: Welding

Surface Preparation Before Coating

• Surface polishing, degreasing, and acid washing to improve coating adhesion and surface durability

Coating and Finish

• Electrostatic powder coating, oven-cured with 80-micron uniform thickness

• Conveyor (rail) technology ensures consistent coating and curing quality

• Color code fully customizable according to client specifications

Seals and Hardware

Smoke Seal:

• Intumescent smoke-seal strip certified by the Fire Department

• Expands up to 500% under heat exposure for maximum fire containment

Hardware:

• I-TEK push-type panic bar system with concealed rear handle (no lock) for emergency exit applications

Door Closer:

• Two-speed hydraulic arm closer, made in China, with dual adjustable screws for controlled movement in both opening and closing phases

Threshold:

• Integrated steel smoke- and fire-resistant threshold

Plastic Caps:

• 8 decorative plastic caps covering installation holes for a refined and seamless look