Stronger. Cleaner. Easier to use.

Confidence.
Contained.

Premium waste bags engineered around the moments ordinary bags get wrong — fitting, sealing, lifting and containing leaks.

Explore Domestic ↓View Marine range ↗

Sure Seal Marine waste liner roll on a yacht deck

ExperienceSimple from first pull to final lift.

PerformanceDesigned for demanding everyday use.

AestheticA product you do not need to hide.

01 / Domestic

The everyday bag,
properly considered.

Easy to fit. Strong where it matters. Cleaner to remove and carry.

Designed to keep leaks where they belong — inside the bag.

Easy fitA generous opening designed for simple mounting.

Extra-thick buildDeveloped to resist everyday splits and punctures.

Secure closureA drawstring concept for cleaner sealing and carrying.

Cleaner binsDesigned to reduce leaks, mess and direct contact.

Domestic product enquiries

Sure Seal waste liner packaging concept

PACKAGING CONCEPT · IN DEVELOPMENT

The Sure Seal experience

Pull. Fit.
Seal. Lift.

Four simple moments, each designed to feel cleaner, stronger and more considered.

01

Pull.

Clean dispensing from a compact, considered roll.

02

Fit.

A wide opening designed to mount quickly and stay put.

03

Seal.

Draw closed for a secure, contained finish.

04

Lift.

Remove and carry with less mess and better control.

02 / Sure Seal Marine

A complete system
for waste onboard.

Purpose-designed for yachts, commercial vessels and ship operators.

Vessel and trade enquiries

Designed around ISO 21070 shipboard waste segregation and MARPOL Annex V garbage-management requirements. Every category uses large wording and a pictogram, so identification never relies on colour alone.

01 / YELLOW♻

Plastics

LARGE CATEGORY WORDING + PICTOGRAM

02 / GREEN◉

Food waste

LARGE CATEGORY WORDING + PICTOGRAM

03 / BLUE▱

Glass / bottles

LARGE CATEGORY WORDING + PICTOGRAM

04 / GREY⬡

Metal

LARGE CATEGORY WORDING + PICTOGRAM

05 / BLACK + WHITE ID▤

Paper / cardboard / clean rags

WHITE CATEGORY WORDING + PICTOGRAM

06 / BROWN▥

Wood / cargo waste

LARGE CATEGORY WORDING + PICTOGRAM

07 / ORANGE◒

Crockery / ceramics

LARGE CATEGORY WORDING + PICTOGRAM

08 / BLACK✦

Incinerator ash

WHITE CATEGORY WORDING + PICTOGRAM

09 / SPECIALIST≈

Hazardous / oily waste

FUTURE ABSORBENT + OLEOPHILIC LINER CONCEPT

Product design detail

Clear on deck.
Clear at handover.

The bag carries the waste stream, vessel and date information directly with it—from segregation onboard to delivery ashore.

Yellow Sure Seal Marine plastics waste bag with category wording, pictograms and vessel identification fields

PLASTICS BAG · DESIGN CONCEPT

Sure Seal Marine waste liner packaging box in a yacht workshop

VESSEL + DATE IDENTIFICATION

01 / SEGREGATION

Immediate identification

Colour, large wording and pictograms help crew and shore personnel identify each waste stream quickly.

02 / SHORE HANDOVER

Information travels with the bag

Vessel and date fields support a clearer handover as European shore facilities request more detailed waste information.

03 / RECORDS

Simpler documentation

Clear segregation and labelling support MARPOL waste receipts and accurate Garbage Record Book entries.

Proposed range shown. Final bag colours, capacities, materials and markings remain subject to development and validation.Clear by colour. Clear by label.

Close-up of the integrated absorbent liner inside a blue Sure Seal waste bag

ABSORBENT LINER CONCEPT

Future development

Absorption,
built into the bag.

A future integrated absorbent base is being explored to help contain incidental liquids, reduce “bin juice” and support cleaner removal.

The absorbent and oleophilic liner concept remains in development. Materials, capacity and performance claims will be confirmed only after prototyping and validated testing.

Built from real-world experience

Designed by someone
who knows what failure costs.

Sure Seal began with marine engineer William Knapper and a simple frustration: an everyday product used everywhere, but too often accepted as “good enough”.

The aim is practical: a cleaner fit, a stronger body, a better seal and a product system that works harder at home and at sea.

Pre-launch

Help bring
Sure Seal to life.

We welcome domestic, vessel, distributor and manufacturing enquiries while final specifications and testing are completed.

Contact Sure Seal

Sure Seal — navy seal emblem