Custom Factory Black Bathroom Sink Cabinet

The cabinet core uses a moisture‑resistant medium‑density fiberboard (MDF) with a density of 650 kg/m³, limiting swelling to less than 0.2 % after 24 h immersion. This substrate maintains dimensional stability under typical bathroom humidity cycles. The chosen density also provides a flexural modulus of approximately 3.5 GPa, contributing to overall carcass rigidity.

External faces receive a UV‑cured acrylic coating in a matte black finish, measured at 15 gloss units, providing resistance to common bathroom chemicals. The coating also exhibits a hardness rating of 2H on the pencil scale, reducing scratch susceptibility.

Material Composition and Finish

Substrate selection emphasizes uniform internal bond, which reduces variation in screw pull‑out strength to within ±10 % across production batches. Consistent bond quality also improves long‑term fastener retention under cyclic loading.

Edge sealing employs a 0.5 mm PVC band, preventing water ingress at cut edges and maintaining the declared thickness tolerance of ±0.3 mm. This barrier is compatible with the acrylic finish, ensuring no delamination after repeated wet‑dry cycles. The bond strength of the PVC to MDF exceeds 1.2 MPa, providing durable edge protection.

Dimensional Flexibility

Standard carcass depth is 550 mm, width adjustable in 50 mm increments from 400 mm to 900 mm, and height adjustable in 25 mm steps from 300 mm to 500 mm to accommodate varying vanity layouts. These increments align with common stud spacing, simplifying on‑site installation.

Door overlay options include full overlay (covering the carcass face by 16 mm) and half overlay (8 mm), influencing the required hinge clearance. Selecting the appropriate overlay affects the visible gap and the torque required for hinge operation.

Customization Options

• Panel thickness: 16 mm, 18 mm, or 22 mm MDF core.
• Door material: MDF, plywood, or moisture‑resistant particleboard.
• Finish: matte black acrylic, textured black laminate, or black powder‑coated metal overlay.
• Hardware: concealed European hinges, soft‑close dampers, or stainless‑steel pull handles.
• Interior accessories: adjustable shelves, pull‑out trays, or integrated LED lighting strips.

Typical Applications

In commercial restrooms, the cabinet supports high‑frequency use while resisting cleaning agents such as sodium hypochlorite solutions up to 0.5 % concentration. The material combination retains structural integrity after 500 cleaning cycles per ISO 846. Surface gloss change after exposure remains below 2 units, indicating minimal aesthetic degradation.

For residential projects, the dimensional flexibility enables integration with custom countertop cutouts, reducing on‑site modification time. This adaptability also allows matching the cabinet height to varying user ergonomics without custom fabrication.

Quality Assurance

Each unit undergoes a 30‑second spray test with deionized water at 0.1 MPa to verify edge seal integrity. A pass criterion is less than 0.05 mm water penetration measured at the joint after test.

Dimensional inspection is performed on a coordinate measuring machine, confirming that length, width, and height remain within the specified tolerances. Measurement uncertainty is kept below 0.02 mm, ensuring reliable data for batch acceptance. Inspection results are logged with traceable serial numbers for quality audits.

Specification Table

Further Information

To obtain a quotation, provide the desired overall dimensions, selected material grade, finish type, and hardware preferences. Detailed shop drawings can be generated upon receipt of these parameters, facilitating early design review.

Lead time typically ranges from 3 to 4 weeks for standard configurations, with expedited options available for project‑critical schedules. Shipping is packaged in recyclable corrugated cartons with corner protectors to minimize transit damage. Each carton includes a desiccant packet to control internal humidity during transport. Pallet stacking is limited to three layers to prevent deformation of the cabinets. Upon receipt, a visual inspection checklist is recommended to verify surface finish and hardware integrity.