Product description

Key attributes

These heavy duty underwater safety warning signs are engineered for high-risk environments including construction zones, marine operations, and scuba diving areas. Manufactured from reinforced industrial-grade PVC material, the signs deliver excellent waterproof performance, underwater adhesion, and long-term durability.

Featuring high-contrast black & yellow warning colors, these self-adhesive safety signs remain highly visible underwater and in low-light conditions, ensuring critical hazard information is clearly communicated to divers, boat operators, and construction personnel.

Key Features

• Underwater Self-Adhesive Performance – Designed to bond securely on wet and submerged surfaces

• Reinforced Heavy Duty PVC Material – Tear-resistant, impact-resistant, long service life

• High-Visibility Black & Yellow Warning Design – Complies with international safety color standards

• Marine & Construction Grade Durability – Resistant to saltwater, pressure, and abrasion

• Clear Hazard Communication – Ideal for permanent or semi-permanent safety signage

Application Areas

 Construction & Engineering

• Underwater construction sites

• Bridge, pier & offshore structure marking

• Hazard zone identification

Marine & Boating Safety

• Boat hull & deck safety warnings

• Dock, marina & offshore platform signage

• Navigation & restricted area marking

 Scuba Diving & Water Sports

• Dive site hazard warnings

• Depth, current & restricted area signs

• Training zones & safety guidance

 Industrial & Offshore Operations

• Oil & gas marine facilities

• Shipyards & underwater maintenance

• Subsea equipment identification

Technical Advantages

Customization & Supply Capability

• Custom warning text, symbols & layouts

• Size, shape & thickness options

• Multi-language safety signage

• OEM / ODM support for engineering projects

• Bulk & export-ready production

FAQ

Q1: Can these safety signs be used fully underwater?
A: Yes. They are designed for submerged and wet surface applications, maintaining adhesion and visibility underwater.

Q2: Are the colors visible in low-light or underwater conditions?
A: The black & yellow high-contrast design ensures strong visibility in underwater, murky, or low-light environments.

Q3: Will saltwater affect adhesion or durability?
A: No. The reinforced PVC and adhesive are resistant to saltwater corrosion and marine exposure.

Q4: Are these signs suitable for long-term installation?
A: Yes. They are engineered for long-term marine, construction, and offshore safety applications.

Why Choose These Heavy Duty Safety Warning Signs

• Engineered for underwater & marine environments

• Reinforced PVC for maximum durability

• High-visibility design for critical hazard communication

• Suitable for construction, boating, scuba diving & offshore safety