Short answer
A self adhesive courier bag has a glue strip on the flap covered by a peel-off liner. Peel the liner, fold the flap and press firmly along the full width. The adhesive bonds to the film, so the bag can’t be opened without tearing. Keep bags cool and dry, and don’t touch the glue strip before sealing.
Live price list
Self-adhesive courier bags
Today’s prices on markrtd.com, including GST & Free Shipping. Bigger packs cost less per piece.
12 x 14 Inch Plain PolyBag (Non POD) – Self Adhesive Courier Bag100 pcs ₹429 · ₹4.29/pc500 pcs ₹1,899 · ₹3.80/pc1000 pcs ₹3,649 · ₹3.65/pcBuy now
6×8 Inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹179 · ₹1.79/pc500 pcs ₹749 · ₹1.50/pc1000 pcs ₹1,499 · ₹1.50/pcBuy now
8×10 Inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹280 · ₹2.80/pc500 pcs ₹1,295 · ₹2.59/pc1000 pcs ₹2,499 · ₹2.50/pcBuy now
10×12 inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹323 · ₹3.23/pc500 pcs ₹1,511 · ₹3.02/pc1000 pcs ₹2,916 · ₹2.92/pcBuy now
10×14 inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹355 · ₹3.55/pc500 pcs ₹1,619 · ₹3.24/pc1000 pcs ₹3,239 · ₹3.24/pcBuy now
14×18 inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹636 · ₹6.36/pc500 pcs ₹2,591 · ₹5.18/pc1000 pcs ₹4,859 · ₹4.86/pcBuy now
12×16 inch Plain Generic Non POD Polybag – Tamper Proof Courier Bag100 pcs ₹499 · ₹4.99/pc500 pcs ₹2,399 · ₹4.80/pc1000 pcs ₹4,499 · ₹4.50/pcBuy now
Near you: we deliver across India to your pincode, dispatching from our warehouses in Muzaffarpur, Bihar and Kolkata, West Bengal. Need a size or quantity that isn’t listed? Ask for a custom order.
See all in category →Most courier bags today are self-adhesive. No tape, no heat sealer, just peel and press. But a badly sealed bag can still open in transit. A few habits make sure it doesn't.
How to seal it properly
- Leave about an inch of empty space between the product and the flap.
- Peel the liner off in one go. Don't touch the glue.
- Fold the flap straight, lining it up with the bag's edge.
- Press from the centre outwards along the full width.
- Run your thumb along the edges once more.
Why bags sometimes open
- Overstuffed bag. The product pushes on the flap and peels it back.
- Dust or fibre on the glue. Lint from garments weakens the bond.
- Old or heat-damaged stock. Glue left in a hot godown for months loses strength.
- Light pressing. The glue needs firm pressure to bond.
Storage
Keep bags flat, away from direct sun and heat, and use older stock first. Don't buy a year's stock at once. Three months is a safe amount for most sellers.
Tamper-evident vs just self-adhesive
All tamper-evident bags are self-adhesive, but not every self-adhesive bag is tamper-evident. A proper one tears the film when opened. Test a bag from every new batch. Read tamper-proof packaging benefits and see sizes in white courier bag.
Shop the packaging in this guide
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Frequently asked questions
How do I seal a self adhesive courier bag?
Peel the liner, fold the flap straight and press firmly from the centre outwards along the full width.
Why does my courier bag open in transit?
Usually overstuffing, dust on the glue, old stock or not pressing hard enough.
How long do self adhesive courier bags last in storage?
Use them within about three months, stored flat in a cool, dry place.
Read next
- White Courier Bag: Sizes, Uses and Price for Online SellersWhite courier bags for online orders: why white works for every channel, sizes from 6×8 to 14×18 inch, how the tamper-proof seal works, and live prices.
- Tamper Proof Packaging Benefits for Online SellersBenefits of tamper proof packaging for online sellers: fewer empty-packet claims, proof in disputes, less pilferage, safer RTOs, more trust.
- Plain Polybag Bulk Price: White Courier Bag RatesPlain polybag bulk price for white courier bags from 6×8 to 14×18 inch: live rates for 100, 500 and 1000 packs, cost per order and tips to buy smarter.
- Courier Bag Sizes Chart: Which Size for Which ProductCourier bag sizes from 6×8 to 20×23 inch in inches and cm, with what fits in each, how to read the size and how to pick the smallest bag that seals.