Why Choose 1.25 Mil LDPE Flat Bags?
Low-density polyethylene (LDPE) is the most widely used plastic bag material because it strikes the perfect balance between protection, flexibility, and cost. At 1.25 mil thickness, these bags are 25% stronger than standard 1 mil bags, providing added puncture resistance for everyday use without unnecessary bulk.
Common Applications
- Food Service: Sandwiches, baked goods, produce, bulk snacks, deli items
- Retail Packaging: Apparel, small parts, toys, office supplies
- Industrial Use: Hardware, components, samples, protective covers
- Storage & Organization: Home organization, shipping protection, document storage
Key Features of LK Packaging (Formerly Elkay Plastics)
LK Packaging has been a trusted name in flexible packaging for over 50 years. Their LDPE bags meet stringent quality standards:
- Virgin Resin Only: No recycled content—ensures consistent quality and FDA compliance
- High Clarity: See contents clearly without opening the bag
- Soft, Conforming Drape: Bags wrap around products smoothly, ideal for clothing and food items
- Easy to Seal: Compatible with heat sealers, twist ties, or tape
How to Choose the Right Bag Size
Selecting the correct bag dimensions ensures product protection and cost efficiency. Measure your product at its widest and longest points, then add 1-2 inches for easy insertion and sealing. For flat items like clothing or documents, choose a bag width slightly larger than the item when folded.
Pro tip: If you're packaging items with sharp edges or corners, consider upgrading to 1.5 mil or 2 mil bags for added puncture resistance.
FDA Compliance for Food Packaging
All LK Packaging LDPE bags comply with FDA regulations for direct food contact (21 CFR 177.1520). This makes them safe for:
- Fresh and frozen foods
- Baked goods and confections
- Produce and bulk dry goods
- Pre-packaged meals and sandwiches
Always follow proper food safety guidelines: store bags in a clean, dry environment and avoid cross-contamination with non-food items.
Frequently Asked Questions
What is a 1.25 mil low density flat bag?A 1.25 mil low density flat bag is an open-top plastic bag made from low-density polyethylene (LDPE) film that is 1.25 mils thick, or 0.00125 inches. LK Packaging produces these bags from seamless tubing with a single bottom seal and no side seals, and they are about 25% thicker than a standard 1 mil bag. They are used for food service, retail packaging, hardware and general storage. Are 1.25 mil LDPE flat bags food safe?Yes. These bags are made from 100% virgin low-density polyethylene and comply with FDA regulations for direct food contact under 21 CFR 177.1520, so they are safe for sandwiches, baked goods, produce, bulk dry goods and fresh or frozen foods. No recycled content is used, which keeps clarity and food-contact compliance consistent from case to case. What is the difference between 1.25 mil and 1.5 mil poly bags?The difference is film thickness and puncture resistance. 1.25 mil bags are lightweight and economical and work best for lighter items under about 2 lbs, while 1.5 mil bags offer roughly 20% more puncture resistance and are the better choice for heavier products or items with sharp edges and corners. Can 1.25 mil flat poly bags be heat sealed?Yes. LDPE flat bags seal easily with an impulse heat sealer, which creates a tamper-evident closure for food safety and product security. They can also be closed with twist ties, tape or a bag tape dispenser when a permanent seal is not needed. Are LDPE flat bags recyclable?LDPE is recyclable and carries Resin Identification Code #4. Curbside programs often do not accept film plastics, but many grocery stores and retailers collect clean, dry LDPE bags and film for recycling. Check with your local program or store drop-off site before recycling. What does seamless tubing mean on a poly bag?Seamless tubing means the bag is made from one continuous tube of extruded film and sealed only at the bottom, so there are no side seams. Side seals are typically the weakest point on a poly bag, so eliminating them reduces the chance of splitting or tearing when the bag is filled. Order LK Packaging 1.25 Mil Flat Bags at Prism Pak
Prism Pak is a stocking distributor of LK Packaging products, offering wholesale pricing, fast shipping, and no minimum orders on most sizes. Whether you need a single case or a full pallet, we're here to support your packaging needs.
Questions about sizing, sealing equipment, or bulk pricing? Contact our packaging experts—we're happy to help.
Related categories: All LK Packaging Flat Poly Bags | Food-Safe Bags | Heat Sealers & Supplies
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