Here’s a comprehensive overview of polypropylene (PP) plastic chemical storage tanks, including their properties, applications, advantages, and key manufacturers:

1. Key Properties of PP Chemical Storage Tanks

• Material: Polypropylene is a thermoplastic polymer derived from propylene monomers, offering a balance of thermal, chemical, and electrical resistance .

• Temperature Range: Typically withstands 30°F to 210°F (some formulations tolerate up to 300°F) .

• Chemical Resistance: Resistant to most alkalis, acids, and harsh chemicals, making it ideal for corrosive environments .

• Physical Traits: Lightweight, rigid, and abrasion-resistant, with a specific gravity of ~0.90 g/cm³ .

2. Common Applications

PP tanks are used across industries for storing:

• Chemicals: Acids (e.g., sulfuric, hydrochloric), alkalis, and plating solutions .

• Pharmaceuticals: Photo-developing solutions, hydrogen sulfide .

• Water: Potable water storage (with FDA-certified options) .

• Industrial Processes: Electroplating, anodizing, and cleaning lines .

3. Advantages Over Other Materials

• Vs. Polyethylene (PE):

• Higher temperature resistance (PP tolerates up to 212°F vs. PE’s 100°F limit) .

• Greater rigidity and abrasion resistance but more brittle in cold temperatures (PP becomes brittle below -4°F to 14°F) .

• Vs. Metal Tanks: No corrosion risk, lower maintenance, and no need for protective coatings .

4. Design and Customization

• Shapes: Cylindrical, rectangular, and custom configurations (open-top, vertical, horizontal)

• Features: Options include agitators, pH/temperature monitors, piping, and secondary containment

• Fabrication: CNC-machined, welded to German DVS standards for durability

5. Limitations

• Cost: More expensive than polyethylene tanks .

• UV Sensitivity: Requires stabilizers for outdoor use.

• Low-Temperature Brittleness: Unsuitable for sub-freezing environments .