Flat Poly Bags 18″ x 18″ 4 mil 500/CTN

Auto Floor Mat & Industrial Gasket Poly Bags — 18″ x 18″ 4 mil LDPE

Industrial-grade 4 mil LDPE flat poly bags sized 18″ x 18″ for heavy-duty square-format applications including automotive floor mats, industrial gaskets, rubber and foam die-cut parts, and square component packaging. The 4 mil construction handles dense, heavy, or sharp-edged contents that would puncture lighter gauges. Made from 100% virgin LDPE resin, FDA/USDA compliant.

Specs: 18″ x 18″ | 4 mil | LDPE | 500/CTN | FDA/USDA Compliant

Applications

• Automotive floor mat and cargo mat packaging
• Industrial rubber and foam gasket bagging
• Square die-cut parts and blanks protection
• Heavy tile and flooring sample storage
• Bulk hardware and component transit bags

Features

• 4 mil heavy gauge — resists puncture from sharp edges, rough surfaces, and dense contents
• Square 18″ x 18″ format accommodates uniform or symmetrical flat parts without excess material
• Bottom seal construction with no base seams
• 100% virgin LDPE resin, FDA/USDA compliant
• Compatible with heat sealing, tying, stapling, or taping

Material Notes

Made from 100% virgin Low Density Polyethylene (LDPE) resin meeting FDA/USDA specifications. 4 mil gauge is the appropriate choice when contents are heavy, dense, or have rough or sharp edges that would puncture 1–2 mil construction during handling. All gauges are nominal. The FDA/USDA compliant resin also makes these suitable for incidental food contact applications.

Use Case Notes

18″ x 18″ is the right footprint for a standard automotive front floor mat, a 16″ or 18″ square rubber gasket, and similar square industrial components. At 4 mil, these bags are rated for contents that would puncture standard 2 mil bags under normal production or transit handling. At 500 bags per carton, this is sized for wholesale automotive parts distributors, rubber product manufacturers, and industrial supply operations running moderate-volume bagging.

Common Questions

Q: Will 4 mil bags handle rough rubber or textured mat surfaces?
A: Yes. 4 mil LDPE provides significantly improved puncture and abrasion resistance compared to standard 1.5–2 mil flat bags, making it appropriate for textured rubber mats, rough-edged gaskets, and dense industrial components.

Q: Are these bags suitable for automotive parts packaging?
A: Yes. 4 mil LDPE provides clean, moisture-resistant packaging for automotive rubber and foam components. FDA/USDA compliant resin ensures no harmful plasticizer migration to automotive components.

Q: Can these be heat sealed?
A: Yes. Standard impulse and bar sealers accommodate 4 mil LDPE. Sealing temperature should be set slightly higher than standard 2 mil settings.

Why Buy

500 per carton, 4 mil puncture-resistant construction, and an 18″ x 18″ square format make these a purpose-fit stock bag for automotive floor mat distribution, rubber gasket packaging, and industrial square-part bagging operations where lighter gauge bags fail under normal handling. FDA/USDA compliant virgin LDPE resin provides compliance for food-adjacent applications when needed.