18X18 4 Mil 500/CTN Flat Poly Bag

Prism Pak's 18x18 flat poly bags are the heavy-duty solution for large-format packaging needs — engineered with 4 mil virgin LDPE for strength that standard bags can't match. Ideal for food service, retail, industrial, and fulfillment operations, these bags protect and present your products with confidence. Made in the USA, FDA food-contact compliant, and available in cartons of 500 for efficient inventory management.

Size: 18" x 18" | Thickness: 4 mil | Material: 100% virgin LDPE | Quantity: 500 bags per carton | Compliance: FDA food-contact compliant

• 4 mil heavy-duty construction delivers over three times the impact resistance and twice the tensile strength of standard LDPE bags, ensuring contents arrive intact through transit and storage.
• 100% virgin LDPE resin ensures no recycled contaminants, providing consistent purity and quality ideal for food, pharmaceutical, and sensitive product applications.
• FDA food-contact compliant for safe direct contact with food items including bakery goods, produce, bulk ingredients, and packaged meals.
• Heat-sealable design lets you securely seal bags to lock in freshness, prevent tampering, and protect contents during shipment without additional packaging hardware.
• Crystal-clear LDPE film keeps products fully visible for retail presentation, inventory checks, and receiving inspections — no need to open the bag.
• Made in the USA with rigorous domestic manufacturing standards, delivering consistent quality and dependable supply for ongoing operations.
• Oversized 18x18 opening easily accommodates bulky, folded, or flat items that smaller bags simply can't handle, reducing packaging time and frustration on the line.

Where it works best:

• Food service: large bakery items, whole loaves of bread, bulk produce, cheese wheels, frozen entrees, and meal kit components requiring food-safe packaging.
• Retail & apparel: folded garments, large textiles, framed prints, posters, and oversized soft goods that need a professional polybag finish.
• Industrial & manufacturing: flat metal components, gaskets, sheet stock, machine parts, and foam inserts that require protective packaging during storage or shipment.
• Agriculture: dried herbs, bulk botanicals, crop samples, dried flowers, and farm-direct produce packaging.
• E-commerce & fulfillment: inner wrap protection for large soft goods, polybag mailers for apparel, and secondary packaging for oversized retail orders.

Solves key pain points: Smaller bags tear, stretch, and fail when pushed beyond their limit. These 18x18, 4 mil bags eliminate that risk with heavy-duty construction built specifically for larger, heavier products. The wide opening speeds up loading, the heat-sealable film allows you to close bags securely, and the crystal-clear material gives your customers a clean, professional look — whether the bag ends up on a retail shelf or inside a shipping carton.

In stock and ready to ship within 24 hours — order your 18x18 4 mil flat poly bags today and keep your packaging operation running at full speed. At 500 bags per carton, you get the volume you need without overpaying. Prism Pak brand quality, domestic manufacturing, and fast fulfillment make these the dependable choice for operations that can't afford interruptions.