14x20 Heavy Duty Flat Poly Bags - 4 Mil Industrial Protection by LK Packaging
These 14x20 flat poly bags from LK Packaging deliver serious protection at 4 mil thickness—the heavy-duty choice for industrial parts, equipment components, and items that demand puncture resistance. Made from virgin low-density polyethylene (LDPE) with seamless tubing construction, these bags eliminate weak points from side seals or slits that can fail under stress.
Product Specifications
- Dimensions: 14" x 20" (flat)
- Material: Low Density Polyethylene (LDPE)
- Thickness: 4 mil (0.004") - Heavy Duty
- Quantity: 500 bags per case
- Construction: Seamless tubing, no side seals
- Compliance: FDA compliant for food contact applications
- Manufacturer: LK Packaging
Industrial Applications
The 4 mil thickness rating places these bags in the heavy-duty category, engineered for applications where standard 2 mil bags would puncture or tear. Manufacturing operations use this size for packaging machined parts, castings, and metal components with sharp edges. Automotive facilities rely on 4 mil bags for transmission components, brake parts, and heavy hardware kits. Warehouse and distribution centers stock this size for protecting valuable inventory from moisture, dust, and handling damage during storage and transit.
Additional applications include equipment covers for electronics and instrumentation, protective packaging for tool sets and hand tools, and archive storage for large documents and prints that require moisture protection.
Key Features
- 4 Mil Puncture Resistance: Handles sharp edges, heavy parts, and rough handling without tearing
- Seamless Tubing Construction: No side seals or slits that can split under load—strength where it counts
- Virgin LDPE Material: Consistent quality, clarity, and FDA compliance from premium resin
- Generous 14x20 Size: Accommodates large parts, folded garments, equipment, and oversized documents
- 500/Case Quantity: Efficient case pack for industrial consumption rates
Material Thickness Guide
Selecting the right mil thickness ensures adequate protection without over-spending:
- 1-1.5 mil: Light duty—dust covers, temporary protection
- 2 mil: General purpose—most common applications
- 4 mil: Heavy duty—industrial parts, sharp objects, demanding environments
- 6 mil: Extra heavy duty—extreme applications, maximum protection
At 4 mil, these bags handle the rigors of manufacturing, automotive, and industrial environments where thinner bags would fail.
Why Choose Prism Pak
Prism Pak offers wholesale pricing on LK Packaging poly bags with no minimum orders on stocked items. Our Pennsylvania warehouse maintains ready inventory for fast fulfillment to commercial and industrial customers.
