PP screws are widely used in household and commercial water filtration systems, food and beverage production lines, chemical container accessories, and light-duty electronic housings. They are suitable for low to medium load applications.

With glass fiber (GF) reinforcement, PP+GF screws offer higher strength and better heat resistance. PP+GF screws are used in electrical control boxes, outdoor enclosures, chemical equipment brackets, and medium-load structural components.

• Standard PP: continuous use up to 90°C, short-term up to 100°C.
• PP+GF: continuous use up to 110°C, short-term up to 120°C, making them more suitable for environments with temperature fluctuations.

PP screws are resistant to most acids, bases, and salt solutions. However, they are not resistant to aromatic solvents (benzene, toluene, xylene – often found in paint thinners, adhesives, cleaning solvents) or chlorinated hydrocarbons (carbon tetrachloride, chloroform, trichloroethylene – commonly used in degreasers, dry-cleaning agents). Best suited for low-temperature chemical and outdoor water applications.

Slightly lower than standard PP, but still highly stable in most acid, alkaline, and saline environments, making them suitable for water treatment and outdoor chemical equipment.

• PP: more economical, lighter, and chemically resistant enough for most water treatment chemicals.
• PVDF: better high-temperature performance and superior resistance to strong oxidizers and fluorides, making it suitable for high-end or harsh environments.

Yes, PP screws have very low water absorption (<0.1%), maintain dimensional stability, and are suitable for long-term exposure to humid conditions. However, they are not recommended for long-term high-pressure underwater structures.

They are used in electronic control boxes, interior fasteners, and non-load-bearing components. Their lightweight and cost advantage make them a good fit in the automotive industry.

In medium-load, corrosion-resistant environments, PP+GF screws can replace certain metal fasteners while being significantly lighter.

PP+GF screws combine lightweight, rigidity, and corrosion resistance. They do not rust and remain structurally stable in rain, salt spray, and humid environments, making them ideal for outdoor enclosures, coastal facilities, and water treatment equipment.

Their weight advantage is significant:
• Standard PP screws: about 1/8 to 1/9 the weight of carbon steel screws.
• PP+GF screws: about 1/6 the weight of carbon steel screws.
This reduces structural weight while maintaining adequate strength, helping lower transportation and installation costs.