BOPP And HST Film
Content Map & Table of Contents
BOPP And HST Film That Actually Seals
We supply BOPP and HST film in 15 to 50 micron, clear or white opaque, for buyers who need it alongside the thread, tape and tags we already send them. If you're already ordering rice bag sealing tape or tea bag envelopes from us, this is usually one more line on the same purchase order, not a whole new vendor relationship.
What BOPP And HST Film Actually Means
BOPP stands for biaxially oriented polypropylene. In plain terms, that's a polypropylene film stretched in two directions during manufacturing, which is what gives it strength and clarity that plain polypropylene sheet doesn't have. HST means heat sealable, and it matters more than it sounds. A film that isn't heat sealable needs glue or tape to close a pack. HST film seals to itself under heat and pressure alone, which is exactly what most automated packaging lines are built around.
So when someone asks for BOPP HST film, they usually mean one thing: a film that runs through a heat-sealing machine and forms a proper seal without extra adhesive. That's the film we supply.
Why The Micron Number Matters
Micron thickness is the first question worth sorting out, because it changes what the film is actually good for. On the thinner end, 15 to 20 micron film suits lamination work, where it's bonded onto paper or board rather than standing on its own. Around 25 to 30 micron is the common range for standalone pouches and wrappers that need to hold their shape without tearing on the packing line. Anything from 40 to 50 micron is for heavier duty applications, where the film itself is doing more of the structural work.
Get the micron wrong and you'll find out fast. Too thin for a standalone pouch and it tears on the sealing jaw. Too thick for a lamination job and you've paid for strength nobody needed. Tell us what you're packing and we'll tell you where in that 15 to 50 range you actually belong.
| Thickness Range | Primary Application | Key Characteristic |
|---|---|---|
| 15 – 20 Micron | Lamination Work | Bonded onto paper or board |
| 25 – 30 Micron | Standalone Pouches & Wrappers | Holds shape without tearing on sealing jaw |
| 40 – 50 Micron | Heavy Duty Packaging | Provides structural integrity |
Clear Or White Opaque, And Why It's Not Just A Look
We supply this film in two finishes. Clear film shows the product through the pack, which matters for anything where the buyer wants to see what they're getting before they open it. White opaque hides the contents and gives a cleaner, more uniform printed surface, which a lot of brands prefer for a finished, premium look on the shelf.
Neither is better. It depends entirely on whether you want the product visible or you want the pack itself to carry the branding.
Where This Actually Gets Used
Tea packers are a natural fit, since a good share of our existing buyers already take tags and envelopes from us for the same tea lines. BOPP film wraps and pouches show up constantly in tea packaging, both for individual sachets and for outer wrapping on boxed tea. Rice and grain packers use it too, often as a printed outer layer over a woven sack for a cleaner retail look, or as a standalone pouch for smaller retail packs. Snack, bakery and general FMCG packing lean on it heavily as well, for exactly the clarity and machinability reasons above.
There's a timing side to this that mirrors our thread business closely. Tea packers tend to place film orders around the same window they're ordering tags, once first flush picking starts moving product through the gardens in spring. Rice packers lean on it more steadily through the year, though it does pick up once Aman paddy starts coming through the mills from November. Already timing a thread or tag order around one of those windows? Worth asking about film in the same conversation, rather than a separate one later.
Your product might not fall into any of those categories, and that's fine too. Tell us what you're packing and how, and we'll tell you honestly whether BOPP HST film is even the right film, rather than just selling you what you asked for.
Supplied, Not Manufactured In House, And We'd Rather Say So
Here's a distinction worth being upfront about. Thread is something we manufacture ourselves, start to finish, on our own floor. BOPP and HST film is something we supply, sourced against your specification rather than produced in our own unit. We're not going to blur that line just because "manufacturer" sounds better in a sentence.
What that means practically is this: we're not the people to ask about extremely tight custom treatments or unusual grade specifications that need a dedicated film line. What we are good at is sourcing the common thickness, width and finish combinations reliably, at a fair price, and getting it onto the same truck as the rest of your order. If you need thread, tape, tags and film all landing together, that convenience is usually worth more than squeezing the last rupee out of the film alone.
A fair question is why a thread manufacturer supplies film in the first place, if we're not the ones making it. The honest answer is that our buyers asked. A rice mill or tea packer ordering thread, tape and tags from three separate places doesn't want a fourth vendor just for film, and once we could source it reliably, saying no would have meant losing them to whoever could offer all four. We vet whoever we source from the same way we'd want a buyer to vet us, checking consistency batch to batch before we put our name behind it.
Custom Width And Length, On Request
Standard rolls run long, and width is generally cut to your packaging line rather than sold off a fixed shelf of sizes. Rather than publish a size chart that might not match your machine, tell us your width and roll length requirement directly and we'll confirm what's realistic against your quantity.
How Ordering Actually Works
Tell us the micron, the finish, and roughly what you're packing, and we'll confirm the right specification rather than just taking an order for whatever you first asked for. For a first order, ask for a sample length before committing to a full roll run, the same way we'd suggest for any product you haven't used from us before. Once confirmed, we dispatch from Kolkata alongside anything else on your order. Get a quote today.
Questions We Get Asked About BOPP And HST Film
What's the actual difference between BOPP film and HST film?
BOPP describes the material and how it's made — biaxially oriented polypropylene. HST describes a treatment, heat sealable. Most film ordered for packaging today is BOPP film with an HST treatment, so the two terms usually travel together rather than describing two separate products.
What micron thickness should I use for pouch packaging?
For most standalone pouches that need to hold shape on a packing line, 25 to 30 micron is the common range. Lighter lamination work can go as thin as 15 to 20 micron. Tell us the product weight and pack size if you're unsure, and we'll suggest a starting point.
Can I get BOPP film in colours other than clear or white opaque?
Our standard range is clear or white opaque. Other tints are possible against a larger order, since it usually means a dedicated production run rather than pulling from standard stock. Ask us directly with your quantity and we'll confirm.
What's the minimum order quantity for BOPP HST film?
It depends on the width and micron combination, since some specifications move faster than others. Tell us the specification and rough quantity and we'll confirm a number rather than quote a generic minimum that might not apply to your case.
Is BOPP film recyclable?
Polypropylene film is technically recyclable, though acceptance depends on your local recycling stream and whether the film is laminated with other materials. When recyclability is a compliance requirement for your business, tell us upfront. We'll confirm the specific grade meets it, rather than assume a general yes.
What HSN code applies to BOPP film for GST purposes?
BOPP and other plastic films generally fall under HSN 3920, which covers plastic sheets, film, foil and strip. This attracts 18 percent GST, and that rate hasn't shifted with the recent GST reforms that changed rates on some other product categories. This is a different HSN chapter and a different rate to our thread products, so don't assume the two carry the same tax treatment on one invoice.
Do you supply BOPP tape as well as BOPP film?
Our BOPP line here is film for packaging and lamination, not self-adhesive tape. Self-adhesive BOPP tape is a different product with its own HSN classification. Let us know if you need tape specifically, and we'll clarify what we can source.
How is BOPP HST film different from a plain LDPE or shrink film?
BOPP film has more clarity, more stiffness and a higher gloss than typical LDPE film, which is part of why it's preferred for retail-facing packaging. Shrink film, by contrast, is chosen specifically because it shrinks tightly around a product shape under heat, which BOPP film doesn't do. They solve different problems even though both show up in packaging lines.
Can BOPP film be printed?
Yes, both clear and white opaque BOPP film take print well, which is one of the main reasons brands choose it over plain plastic sheet for retail packaging. Tell us if you need it supplied plain or pre-printed, since that changes what we need from you to fulfil it.
What width and roll length do you supply?
Width is generally cut to your packaging line requirement rather than sold off a fixed size chart, and roll length is agreed against your order quantity. Tell us your machine's width requirement directly and we'll confirm what's realistic.
Do you supply this alongside thread and tape on one order?
Yes, and that's usually the point for our existing buyers. If you already order rice bag sealing tape, thread or tea bag tags from us, BOPP film typically goes out on the same dispatch rather than needing a separate order and a separate delivery.
Is this film food safe for wrapping food products?
Food contact suitability depends on the specific grade and any required certification for your product category. Tell us exactly what you're packing and any compliance requirement you have, and we'll confirm in writing whether the grade we can supply meets it, rather than give a blanket yes.
How do I know if I need BOPP film or shrink film for my product?
If your product needs the film to hug its exact shape after heating, that's shrink film. If you need a flat wrap, pouch or laminated surface that keeps its shape rather than shrinking, that's BOPP. Not sure which one describes your product? Tell us what you're packing, and we'll say which one actually fits, even if that means pointing you to our shrink film line instead.
Can I order a small trial quantity before a full roll commitment?
Yes, and for a first order we'd suggest it. Ask for a sample length before committing to a full roll run, so you can test it on your own line first.
Does BOPP film build up static during packing?
Some grades can, especially on high-speed automated lines. Antistatic treatment is available on certain grades if that's a genuine issue on your machine, but it's worth confirming whether you actually need it before paying for a treatment your line doesn't require. Tell us your machine speed and we can point you the right way.
Is there a difference between "BOPP film" and "BOPP sheet"?
In practice, film and sheet describe the same material at different gauges, with film being the thinner, roll-fed form used in packaging lines and sheet referring to thicker, more rigid stock. Everything we supply here is film, in roll form, meant to run through a packing or lamination line rather than sit as a rigid sheet.
How quickly can you dispatch a BOPP film order?
It depends on whether your specification is one we can source from standard stock or whether it needs a dedicated run. Standard clear or white opaque in common micron ranges moves faster. Tell us your quantity and timeline upfront and we'll give you a straight answer on dispatch, not just a hopeful one.
Talk to us before you order
A two-minute call usually settles it faster than an email back-and-forth.