Chemicals Industry Blow Molding Solutions
Plastic blow-molded bottles used for chemicals are specially designed to ensure chemical resistance, strength, and safe storage. The types of plastic, shapes, and common applications used in chemical packaging are:
Plastics Used for Chemical Bottles & Plastic Barrels (Blow Molded)
HDPE (High-Density Polyethylene)
- Most common for chemical containers
- Excellent resistance to acids, bases, detergents, and alcohols
- Used for: Cleaning products, industrial chemicals, motor oil, bleach
LDPE (Low-Density Polyethylene)
- More flexible than HDPE, but lower chemical resistance
- Used for: Squeeze bottles (e.g., lab wash bottles)
PP (Polypropylene)
- Good heat and chemical resistance
- Used for: Lab chemicals, solvents, certain acids
PVC (Polyvinyl Chloride)
- Clear and rigid, moderate chemical resistance
- Used for: Some specialty or lab-grade containers
- Less favored due to environmental concerns
PET (Polyethylene Terephthalate)
- Good barrier properties, but not ideal for strong solvents
- Used for: Consumer-grade cleaners or diluted chemicals
Fluorinated HDPE (Post-Mold Treated)
- Enhanced to resist permeation from aggressive chemicals like hydrocarbons
- Used for: Pesticides, automotive fluids, industrial degreasers
Common Blow Molded Shapes & Sizes for Chemicals
| Bottle Shape | Typical Volume | Common Use |
|---|---|---|
| F-Style Bottle | 1L to 5L | Cleaners, degreasers, solvents |
| Round Bottle | 250 mL to 1L | Lab reagents, acids, alcohols |
| Oblong Bottle | 500 mL to 2L | Household cleaners, disinfectants |
| Jerry Can / Jerrican | 2.5L to 20L | Industrial chemicals, agrochemicals |
| Boston Round | 50 mL to 1L | Lab chemicals, essential oils |
| Spray Bottles | 500 mL to 1L | Cleaners, disinfectants (usually PET) |
Blow Molding Processes Used - Extrusion Blow Molding (EBM)
- Used for HDPE and PP chemical containers
- Ideal for jugs, F-style bottles, and industrial containers
Injection Blow Molding (IBM)
- Used for small, precision bottles (e.g., lab chemical containers)
PET Stretch Blow Molding (SBM)
- Used for clear PET bottles (less common for strong chemicals)
Frequently Asked Questions (FAQs)
- What type of plastic is best for storing strong chemicals?
HDPE (High-Density Polyethylene) is the most commonly used plastic for storing strong chemicals due to its excellent resistance to acids, bases, detergents, and alcohols. Fluorinated HDPE is also ideal for aggressive chemicals like hydrocarbons.
- What are the common shapes and sizes of chemical bottles?
- What blow molding methods are used for chemical containers?
- Why is PET not used for strong chemical packaging?
- What are the advantages of using fluorinated HDPE bottles?