PLASTIC BAGS FOR LIQUIDS

Liquid poly mailers – wide banner
Plastic bags for liquids

Leak-proof plastic bags for liquids, designed to protect against accidental spills

Protect your products from leaks with Mac-Graf. Our liquid-proof pouches guarantee leak-proof performance, durability, and fast packaging. This means you don’t have to worry about the costs associated with damage caused by accidental spills during transport.

Are you looking for a reliable way to secure liquids such as engine oil, windshield washer fluid, etc., during transport? We carry out custom projects tailored to the specific needs of your industry and your logistics requirements.

Contact us—our advisors will help you choose the right thickness and size of film!

Parameters

PARAMETER VALUE
Colour grey (recycled), transparent (clear), milky, black & white (opaque)
Format standard sizes (e.g. 360×470 mm, 250×370 mm) and custom dimensions
Print custom logo, warning pictograms, instructions, barcodes
Closure dedicated sealing systems and perforations for easy opening
Adhesive hot-melt
Thickness according to customer requirements

Selected applications and industries:

  • Our leak-proof bags (poly mailers) are an ideal solution for protecting:
  • Liquid products – oils, cosmetics, detergents, household chemicals.
  • Bulk products – powders, granulates.
  • E-commerce shipments – as additional protection inside a carton or as a standalone shipping package.

IMPORTANT!

These bags are not intended for the storage or transportation of food products, meaning they will effectively protect against the effects of accidental leakage; however, once a spill occurs, the product will no longer be suitable for consumption.

Request a quote for plastic bags for liquids

Once you submit the form, our sales advisor will contact you within a maximum of 24 hours, answer all your questions, and prepare a tailored offer.


    As a manufacturer and distributor we sell products in wholesale quantities. We do not process retail orders.

    Manufacturer

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    Why choose Mac-Graf leak-proof poly mailers?

    Shipping liquids, oils, or bulk materials requires packaging that performs reliably under demanding transport conditions. Our plastic bags are designed to provide maximum protection for the contents while safeguarding other shipments from contamination. We understand that leakage can be costly—especially when it damages high-value goods or the transport equipment itself.

    Reliable leak-proof sealing thanks to hot-melt adhesive

    The use of professional hot-melt adhesive based on synthetic rubber ensures immediate and durable sealing.

    • Tear resistance – once sealed, the bag can only be opened by damaging the film.
    • Wide temperature range – the adhesive maintains its properties in both low and high temperatures, which is crucial in international transport.

    Durable, multi-layer LDPE film

    Our bags are manufactured from thick LDPE film (typically 60–70 microns), but alternative thicknesses are available—fully tailored to your requirements.

    • Mechanical resistance – the film is flexible yet highly resistant to punctures and tearing.
    • Protective barrier – effectively protects against moisture, dirt, and adverse weather conditions.

    Packaging process optimisation

    We understand that in e-commerce, every second counts. That’s why our bags feature solutions designed to streamline warehouse operations:

    • Sequential film perforation for easier access to the contents.
    • Extended release liner on the adhesive strip, allowing for quick and easy removal of the protective layer—even when wearing gloves.

    Eco-friendly solution for your brand

    At Mac-Graf, we combine safety with environmental responsibility. We offer the option to produce poly mailers from PCR (Post-Consumer Recycled) regranulate.

    • High recycled content.
    • Eligibility for the prestigious Blue Angel certification.
    • Building an environmentally responsible brand image.
    Plastic bags for liquids

    Frequently Asked Questions (FAQ)

    Our bags are manufactured from high-quality low-density polyethylene (LDPE) with a thickness of 60 to 70 microns. This specification ensures excellent resistance to punctures, tearing, and stretching. Thanks to their multi-layer structure, shipments are effectively protected against external factors and mechanical damage during sorting.

    Absolutely. Strong side seals and a secure closure make our bags an ideal solution for industries such as chemicals (laundry powders, granulates) and pet care (feed). They effectively prevent dusting and spillage, which is essential for maintaining cleanliness throughout the entire logistics chain.

    Yes, we are committed to sustainability. We can manufacture bags from PCR (Post-Consumer Recycled) regranulate, i.e. film sourced from recycled consumer waste. Our products may qualify for the Blue Angel certification, confirming their environmentally friendly profile while maintaining high performance parameters.

    Yes. We offer fully customised poly mailers. We can print your company logo, handling pictograms, barcodes, or disposal instructions directly on the film. Various colour options are available, including transparent (for easy product identification) and opaque (e.g. black & white).

    The offered plastic bags are not certified for food contact. Their primary function is to protect against the effects of accidental leakage—safeguarding transport vehicles, parcel lockers, and other shipments from damage. They are commonly used in the automotive industry for packaging engine oils, windshield washer fluids, and similar products, as well as in e-commerce for shipping household chemicals.

    Produkty spożywcze, które wylałyby się w takim worku nie nadawałyby się już do spożycia. Technicznie więc rzecz biorąc, mogą być one pakowane w oferowane worki, gdy mają swoje fabryczne opakowanie np. olej spożywczy, ale po rozlaniu będą niezdatne do spożycia.