Kayco Bag Knowledge Base
Bag Types and Commonly Used Films
Commonly Used Films:
Low Density Polyethylene (LDPE)
Commonly Used Plastic
Least Expensive
FDA Approved
Translucent/Semi-Transparent Level of Clarity
Good for Printing
High Density Polyethylene (HDPE)
Commonly used plastic
FDA Approved
Increased Tensile Strength (when compared to LDPE)
Offers Scratch Resistance and Barrier Protection for packaged parts
Opaque
Stiffer than LDPE
Provides Chemical/Corrosion Resistance
Linear Low Density Polyethylene (LLDPE)
Stronger than LDPE
Allows for Down-Gauging
Greater clarity and flexibility than HDPE
Resistant to Abrasion
Polypropylene
Highest level of clarity
FDA Approved
Puncture resistant
Lightweight
Commonly Used in Retail Packaging
Moisture/Vapor Barrier
Great for Printing
Eco-Friendly Films
Bio-Based Films
Post Consumer Recycled
Post Industrial Recycled and Compostable materials (available for select applications)
Reduced Carbon Footprint
Sustainable
Bag Thickness Guide: Which to Choose?
1 mil
Lightweight/Light Duty
2 mil
Commonly Used/Medium Weight
3 mil
Added Strength for Larger/Heavier Items
4 mil
Increased Thickness for Heavy Items or Sharp Edges
6 mil
Extremely Heavy Duty and Puncture Resistant