PP Cabinets Explained: Structure, Safety Features, and Proper Usage in Laboratories

1. What Is a PP Cabinet?

A PP Cabinet (Polypropylene Cabinet) is a chemical storage cabinet made from 100% corrosion-resistant polypropylene panels. It is specifically designed for storing strong acids, strong alkalis, and other corrosive chemicals. Compared with traditional steel safety cabinets, PP cabinets offer superior corrosion resistance — they do not rust, oxidize, or react with chemicals, making them ideal for laboratories and chemical-related industries.

Features of a PP Cabinet:

• Welded construction using pure PP panels; resistant to acids, alkalis, and corrosion

• Corrosion-resistant hinges and locking system

• Adjustable PP shelves

• Optional vent connection for external exhaust systems

• Optional transparent viewing window

• Various models available, such as PP chemical cabinet, PP reagent cabinet, PP acid & alkali cabinet, and PP fume cabinet

2. How to Use a PP Cabinet

(1) Store Chemicals by Category

Store strong acids, alkalis, oxidizers, and volatile reagents separately to prevent unwanted chemical reactions.

(2) Inspect the Cabinet Before Use

Ensure the lock, hinges, seals, and vent ports are intact to maintain proper safety performance.

(3) Connect to an Exhaust System (If Needed)

Some PP cabinets have vent ports that can connect to a central exhaust system or a filter-based air purification module to reduce chemical vapor buildup.

(4) Clean and Maintain Regularly

Clean with mild detergents and avoid metal tools. Regularly check chemical expiration and shelf load capacity.

(5) Apply Safety Labels and Control Access

Label the cabinet with chemical categories and hazard symbols, and implement controlled access for safety-critical chemicals.

3. Application Scenarios

(1) Universities & Research Laboratories

Used to store acids, alkalis, corrosive reagents, and buffer solutions.

(2) Chemical, Pharmaceutical & Biotech Industries

For safe storage of raw materials and corrosive chemicals.

(3) Semiconductor & New Energy Manufacturing

Suitable for environments requiring extensive acid and alkali usage, such as wet process workshops.

(4) Hospitals & Testing Laboratories

For storing diagnostic reagents, cleaning solutions, and corrosive samples.

(5) Environmental Protection & Wastewater Treatment

Used for storing pH regulators, treatment chemicals, and analytical reagents.

(6) Food & Agricultural Laboratories

For keeping reagents, cleaning solutions, and other corrosive substances.

Conclusion

With excellent corrosion resistance, safety, and durability, PP cabinets have become the preferred solution for storing strong acids and alkalis in laboratories and industrial environments. We provide both standard and customized PP cabinet solutions to meet diverse application needs.