Flat Poly Bags 38″ x 48″ 6 mil 50/Box

Engine Block & Large Casting Poly Bags — 38×48 in., 6 mil

These 38×48 flat poly bags deliver extra-heavy-duty protection for large industrial components including engine blocks, hydraulic housings, large metal castings, and oversized fabricated assemblies. At 6 mil, this is the heaviest standard poly film gauge, providing maximum puncture resistance and moisture protection for heavy components handled in industrial and manufacturing environments. The low per-case count (50 bags) reflects the industrial scale of this bag format.

Specs: 38" x 48" | 6 mil | LDPE | 50/Box | FDA/USDA Compliant

Applications

• Engine block bagging for remanufacturing, storage, and shipping
• Large hydraulic pump and gearbox housing protection
• Heavy metal castings and fabricated weldments
• Industrial motor and generator component bagging
• Oversized pallet-adjacent components requiring individual protective wrapping

Features

• 6 mil extra-heavy gauge — maximum puncture resistance for sharp metal edges
• 38×48 format accommodates near-pallet-size components
• Bottom-sealed for load-bearing strength under heavy metal parts
• Open end for sliding over large components from any angle
• Heat sealable for fully enclosed protection
• 50 bags per box for industrial-scale operations

Material Notes

Made from 100% virgin LDPE resin. At 6 mil, this film provides the maximum standard puncture resistance available in a flat poly bag, making it suitable for machined metal components with sharp edges, casting gates, and welded protrusions. LDPE remains flexible at low temperatures and will not crack or stiffen during cold storage or winter transport. FDA/USDA compliant.

Use Case Notes

The 38×48 bag is commonly used in engine remanufacturing operations to sleeve individual short blocks, long blocks, or bare cylinder heads after machining and before packaging in the shipping container. The 6 mil thickness prevents puncture from machined surfaces and casting flash during manual handling. For assemblies that are wet (coolant, oil residue), the sealed bottom provides containment to protect the outer carton.

Common Questions

Q: Can this bag be used as a drum liner or container liner?
A: The 38×48 flat bag is not engineered as a cylindrical drum liner, which requires specific sizing for the drum interior diameter and depth. However, it can function as a flat liner in open-top containers or wooden crates where a flat-bottom liner is acceptable.

Q: Why is the count only 50 per box for a poly bag?
A: At 6 mil and 38×48 inches, each bag has a significant film weight. Larger quantities per box would result in a box weight exceeding practical handling limits for warehouse operations. The 50-count case is standard for industrial-grade bags of this gauge and size.

Why Buy

When standard 2 or 3 mil bags are not adequate for large, sharp, or heavy industrial components, the 38×48 6 mil bag provides the protection level the job requires. The near-pallet-width format eliminates the need for custom-sized bags in most heavy machinery applications, and the 6 mil film withstands the rough handling that large component logistics demands.