PP board (polypropylene board) specifically designed for fish ponds is widely used in aquaculture, circulating water systems, fish fry hatching ponds, and other scenarios due to its water resistance, corrosion resistance, and non-toxic properties. The following are its main characteristics and selection points:

1. Food grade safety (core requirement)

Non toxic and odorless: Complies with FDA (US) or GB 4806.7-2016 (Chinese food grade plastic standards), ensuring long-term exposure to water does not affect fish health.

No heavy metal precipitation: Avoid using recycled materials or inferior additives (such as lead and cadmium colorants).

2. Corrosion resistance

Salt alkali resistance: suitable for seawater aquaculture ponds (resistant to saltwater corrosion).

Anti organic substances: It has good tolerance to fish manure, feed residues, and disinfectants (such as sodium hypochlorite).

3. Structural performance

High rigidity: The thickness is usually selected between 5-20mm (adjusted according to the depth of the fish pond and water pressure) to prevent deformation.

Lightweight: Low density (0.9g/cm ³), easy to transport and install, suitable for modular splicing of large fish ponds.

4. Surface treatment

Anti slip texture: The surface can be embossed or frosted to prevent workers from slipping.

Anti algae coating (optional): inhibits algae adhesion and reduces cleaning frequency.

5. Weather resistance

UV stability: Outdoor fish ponds need to add anti UV agents to prevent long-term exposure to sunlight, aging, and becoming brittle.

Temperature adaptation: Operating temperature range of -30 ℃~80 ℃, suitable for areas with large temperature differences.

6. Installation and maintenance

Easy to weld: Seamless splicing is achieved through hot melt welding to avoid water leakage.

Easy to clean: The surface is smooth and can be directly rinsed with a high-pressure water gun.