Flat Poly Bags 15" x 18" 3 mil 500/CTN
These 15" x 18" flat poly bags in 3 mil LDPE are suited for HVAC filter packaging, medium automotive parts protection, and industrial goods bagging requiring heavy-gauge film. Made from 100% virgin LDPE resin, they deliver superior tear resistance and clarity for demanding warehouse and distribution applications.
Specs: 15" x 18" | 3 mil | LDPE | 500/CTN | FDA Compliant
Applications
- HVAC and air filter retail and wholesale packaging
- Automotive trim panel and medium parts protection
- Industrial equipment component bagging
- Folded textiles and workwear protection during shipment
- Medical device tray and accessory packaging
Features
- Open-end flat format — compatible with heat sealing, stapling, or taping
- 3 mil gauge — heavy-duty thickness for abrasion-resistant or pointed contents
- 15" x 18" opening — accommodates standard 14" x 18" filter frames and medium parts
- High clarity LDPE — product and label visibility through the bag
- 100% virgin resin — no recycled content, consistent film integrity
Material Notes
Manufactured from 100% virgin Low Density Polyethylene (LDPE) resin. At 3 mil, this is a heavy-duty bag designed for contents with edges, points, or abrasive surfaces where lighter gauges would risk puncture or tearing. LDPE at 3 mil retains flexibility while providing significantly greater puncture resistance than 1–2 mil films. All gauges are nominal. FDA compliant for direct food contact applications.
Use Case Notes
The 15" x 18" format fits standard 14" x 18" HVAC filter sizes with a slight overlap at the open end for heat sealing or taping. For automotive applications, this bag covers medium-size trim pieces and smaller body panels up to approximately 14" x 17". At 3 mil, the bag withstands contact with metal edges, clips, and fasteners without rupture during handling and transit.
Common Questions
Q: Does this bag fit a standard 14x18 HVAC filter?
A: Yes. The 15" x 18" opening provides a comfortable fit for 14" x 18" filters with approximately 1" of clearance on the width for sealing or labeling at the open end.
Q: Can these bags be heat sealed?
A: Yes. LDPE at 3 mil requires a higher temperature or dwell time than thinner gauges. Use a heat sealer rated for heavy-gauge film, with settings adjusted for consistent 3 mil closures.
Q: Are these bags food safe?
A: Yes. These bags are made from FDA compliant LDPE resin and are suitable for direct food contact including dry goods and industrial food-grade packaging applications.
Why Source These Bags
Sold in cases of 500, these 15" x 18" 3 mil LDPE bags are a practical choice for HVAC distributors, automotive parts suppliers, and industrial operations requiring a durable, medium-format bag in volume. Virgin resin construction and heavy gauge deliver reliable performance for contents that would stress thinner film options.


