40x48 Heavy Duty Flat Poly Bags - 4 Mil LDPE for Industrial Applications
These 40x48 flat poly bags deliver heavy-duty protection for large industrial parts, equipment covers, and bulk storage applications. Manufactured from 4 mil low-density polyethylene (LDPE), these bags provide superior puncture resistance and tear strength for demanding warehouse and manufacturing environments. The generous 40x48 size accommodates oversized items while maintaining the flexibility and durability required for commercial operations.
Product Specifications
- Dimensions: 40" x 48" (flat width x length)
- Thickness: 4 mil (0.004")
- Material: 100% virgin Low-Density Polyethylene (LDPE)
- Quantity: 50 bags per carton
- Compliance: FDA compliant for food contact
- Color: Clear/natural
- Seal: Open top (heat-sealable)
Industrial Applications
The 40x48 size and 4 mil thickness make these bags ideal for multiple commercial applications. Manufacturing facilities use them to protect large machinery parts, automotive components, and work-in-progress inventory from dust and moisture. Warehouse operations rely on this size for covering palletized goods, storing bulk textiles, and protecting furniture during transit. Food processing plants utilize these FDA-compliant bags for bulk ingredient storage and secondary packaging of large food items. Distribution centers stock this size for protecting oversized products during storage and shipment.
Key Features
- Heavy Duty Protection: 4 mil thickness provides excellent puncture and tear resistance for industrial use
- Large Capacity: 40x48 dimensions accommodate oversized parts, equipment, and bulk materials
- Virgin LDPE Resin: Superior clarity and strength compared to recycled materials
- Heat-Sealable: Open-top design allows custom heat sealing for secure closure and tamper evidence
- FDA Compliant: Suitable for direct food contact applications in food service and processing
- Moisture Barrier: LDPE material provides reliable protection against dust, dirt, and light moisture
Material Strength Guide
At 4 mil thickness, these flat poly bags fall into the heavy-duty category, offering approximately three times the impact resistance of standard 2 mil bags. This thickness handles sharp edges, rough surfaces, and moderate weight loads without tearing. For comparison: 2 mil bags suit general-purpose applications, 3 mil handles moderate-duty tasks, while 4-6 mil provides the durability required for industrial parts, tools, and heavy items.
Storage and Handling
Store bags in a cool, dry location away from direct sunlight to maintain optimal material properties. LDPE bags can be heat-sealed using standard impulse sealers or automatic sealing equipment. For maximum strength, seal across the full width of the bag opening. Bags are shipped in cartons of 50 for convenient warehouse storage and dispensing.
Why Choose Prism Pak
Prism Pak offers wholesale pricing on industrial poly bags with case quantity ordering. Our Pennsylvania distribution center maintains ready stock of heavy-duty bags for fast delivery to commercial customers throughout the Mid-Atlantic and Northeast regions.
