Zip Lock Bags
Reclosable, and it stays closed
A zip lock bag lives or dies on the track. A soft or shallow profile feels fine on the first close and fails on the twentieth, which is precisely when your customer notices. We run a proper interlocking profile with an audible close.
For pharmaceutical and laboratory use the zip does something else useful: it gives a tamper-evident state. A bag that has been opened does not go back to looking factory-sealed.
When not to buy this
Heavy or sharp contents. The zip track is not a load-bearing structure — if the bag is going to be lifted by its top, specify a gusset bag or a higher micron body.
Best for
Anything opened and reclosed repeatedly — samples, spares, dispensing, retail packs.
Anatomy
What you are actually specifying
What you get
Four things we hold to
Positive close
An interlocking track you can hear engage, held through repeated open-close cycles.
Full-width track
The zip runs the entire bag width so there is no unsealed corner at either end.
Clear body
High clarity so contents identify at a glance — critical in stores and dispensing.
Optional lip
A tear-notch or extended lip above the track, for easier opening with gloves on.
Specification
The numbers
- Material
- 100% virgin LLDPE
- Thickness
- 40 – 125 micron (160 – 500 gauge)
- Closure
- Interlocking zip track, full width
- Options
- Plain or printed, tear notch, hang hole, write-on panel
- Seal
- Three-side sealed with top zip
- Clarity
- High clarity natural
Sizes
Stock sizes, and anything else
| Size | Thickness | Typical use |
|---|---|---|
| 4" × 6" | 40 – 50 micron | Small parts, tablets, samples |
| 6" × 8" | 40 – 60 micron | Spares, electronics, sachets |
| 8" × 10" | 50 – 75 micron | General retail, dispensing |
| 10" × 12" | 50 – 100 micron | Larger contents, kits |
| Custom | 40 – 125 micron | Cut to your product |
Don't see your size? That is what the size finder is for.
Common questions
Before you ask
- Are these suitable for pharmaceutical use?
- The film is virgin LLDPE conforming to IS 10146 for pharmaceutical contact. Tell us the application at enquiry stage and we will confirm the right specification in writing.
- Can you print on a zip lock bag?
- Yes, up to two colours, with a clear margin held around the track.
Who buys this
Zip lock bags are specified most often by
Also in the range
Other bags we make
Plain Polybags
High-volume packing where clarity and consistent thickness matter more than branding.
15 – 200 micron (60 – 800 gauge)
Printed Polybags
Retail, D2C and dispatch packing where the bag is part of the brand experience.
25 – 150 micron (100 – 600 gauge)
Gusset Bags
Bulky or three-dimensional contents that a flat bag would strain around.
30 – 200 micron (120 – 800 gauge)
Minimum order 100 kg per size · 2–3 working days for stock sizes · Free delivery across the BBN belt on orders above 200 kg