Hemptique’s hemp and linen cords hold up reliably across a typical aquaculture cycle, ranging from a few weeks to several months, depending on use and water conditions. Unlike synthetics, they gradually biodegrade after retirement without polluting the marine environment.
Sustainable Ropes & Cords for Aquaculture & Marine Use
Commercial aquaculture is moving fast and so are regulations, buyer expectations and environmental standards. Hemptique’s hemp and flax-based marine ropes and cords give you a smarter alternative to synthetic cordage. Designed for real working conditions in open water and coastal farms, these durable natural fibers help reduce microplastic pollution without compromising on strength or reliability.
From mussel droppers to seaweed longlines and trap lashings, our biodegradable ropes are built to support your operations while protecting the waters you depend on.
Why Aquaculture Professionals Are Switching to Biodegradable Marine Rope
Microplastics, disposal costs and environmental regulations are now operational risks in commercial aquaculture. Traditional synthetic rope, especially low-grade polypropylene, sheds fibers into the water, weakens under UV exposure and adds to marine debris at end-of-life.
Our biodegradable marine ropes and twines are made from hemp and flax—natural fibers that perform under real marine conditions but break down cleanly when retired.
These products give your team the strength needed to run longlines, secure traps, tie floats and bundle harvests - without contributing to long-term ocean pollution.
Innovation & Quality
Premium Quality, Sustainably Grown, Consumer Products
100% Natural
Hemp, Linen, Cotton, Bamboo and Other Natural Fibers
Shipping
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Wholesale
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Product Recommendations
LINEN TWINE
$16.99
TARRED MARLINE
$41.20
170LB /100LB HEMP CORD
$19.99
HEMP ROPE
PRICE VARIES
Where Our Sustainable Cordage Fits in Aquaculture & Marine Use
Built for hands-on daily work, our natural rope and twine products can replace synthetic gear across a wide range of marine environments. Here’s how commercial clients are putting them to work:
Shellfish Farming
- Mussel longline droppers and collector ropes – durable in submerged grow lines and fully compostable after harvesting
- Oyster bag ties and rack anchor points – resists UV and tidal stress while maintaining knot integrity
- Scallop ear-hanging lines – gentle on delicate shells, with no synthetic fiber loss into the water
Hatchery mesh and seed tray tie-downs – secure trays in floating systems or land-based nurseries without plastic waste
Seaweed Cultivation
- Primary growing lines and dropper support systems – performs in long-term saltwater use and won’t clog harvesting equipment
- Longline headers and anchor line assemblies – strong enough for seasonal grow-outs, safe for ocean-bed impact
- Harvesting cord and bundle wraps – simplifies post-harvest bundling with compostable fiber
- Seed string supports for kelp and red algae strains – compatible with standard propagation setups, with reduced tangling
Trap, Buoy & Small-Craft Use
- Lashing for crab, lobster and fish traps – holds well under load, easy to cut and re-tie between runs
- Float ties and buoy marker lines – visible and secure, with no plastic residue left in marine zones
- Dock tie-downs and eco-mooring setups in sensitive areas – low-impact fiber options for restoration zones or protected waters
- Temporary anchor lines or low-load rigging – handles shifting loads without degrading prematurely
Packing & Onshore Handling
- Harvest bundle ties and transport packaging– used for grouping seaweed, oysters or shellfish for efficient onshore handling and market delivery
Repair & Emergency Use
- Temporary gear repair – strong enough to replace snapped trap ties or damaged dropper lines mid-harvest or during gear maintenance
HAND-CRAFT & SPECIALTY GEAR PRODUCTION
- Traditional net mending and sustainable gear kits – favored by heritage fisheries, coastal education programs and zero-waste marine equipment developers
REEF RESTORATION & ENVIRONMENT INSTALLATIONS
- Biodegradable anchor ties for reef or habitat modules – suitable for plastic-free reef building, marine restoration or underwater habitat setups
Advantages for Marine Professionals
Switching from synthetic rope to natural cordage isn’t just about sustainability, but a smarter operational choice as well. Hemptique’s biodegradable marine-grade ropes and twines are designed to meet the physical demands of shellfish and seaweed farms while helping you stay ahead of compliance and environmental impact.
Built for Wet Environments
Our hemp and linen ropes hold strength in water, resist fraying under load and stay knot-secure in salt spray and tidal movement.
No Microplastics, No Leaching
Unlike synthetic rope, these natural fibers won’t shed plastic into marine ecosystems or leave behind chemical residue.
Easy to Handle, Easy to Retire
Soft on hands, easy to knot and fully compostable. No hauling, burning or landfill disposal required. Just cut it down and let it return to the earth.
Compliant With Sustainability Requirements
Products meet the growing expectations from seafood buyers, regulators, and eco-label certifiers for non-plastic aquaculture infrastructure.
Reduces Lifecycle Costs
Fewer synthetic rope failures. Less replacement. Lower disposal effort. And a stronger story for your brand, buyers and licensing paperwork.
If your team works with textiles, furnishings or handmade goods and needs high performance, plant-based cordage Hemptique
is ready to support your operation. Contact us today and we’ll help you get started.
is ready to support your operation. Contact us today and we’ll help you get started.
Who We Work With
Hemptique supplies eco-friendly marine rope and twine to a broad range of aquaculture professionals and marine operations.
- Shellfish Farmers – oyster, mussel and scallop operations
- Seaweed Cultivators – kelp, dulse and red algae farms
- Aquaculture Equipment Suppliers – distributors and gear manufacturers seeking plastic-free options
- Commercial Fisheries – for trap lashing, line repair and deck handling
- Reef Restoration Projects – biodegradable cord for marine conservation
- Hatcheries and Research Facilities – for tie-downs, labeling, and net repairs
- Educational Institutions & Training Centers – sustainable gear for fieldwork and student operations
- Sustainable Seafood Brands – looking to align back-end operations with front-end eco messaging
Frequently Asked Questions
How long does hemp or linen rope last in saltwater environments?
Can these cords fully replace synthetic marine rope?
For many low- to mid-load applications (e.g., longlines, trap ties, seedling mesh), yes. They are not recommended for high-load mooring or permanent structural lines, but they excel in biodegradable systems like mussel droppers, seaweed cultivation lines, and shellfish baskets.
Do these cords hold knots securely in wet conditions?
Yes. Hemp and linen both maintain good knot friction, even when submerged. Unlike some slick synthetics, these natural fibers grip securely without slipping.
Will they shed or fray in the water?
Minimal shedding compared to low-cost polypropylene. These cords maintain integrity through full-season use and degrade evenly without releasing plastic fibers into the water.
Do you offer custom spool sizes or private labeling for commercial orders?
Yes. We accommodate custom spool lengths, cord thickness, and packaging preferences for qualified wholesale accounts. Private labeling is available upon request.
How does your tarred marline differ from traditional synthetic marine twine?
Our tarred linen marline is coated for water resistance and knot retention, without the synthetic base. It performs exceptionally in trap lashing, net repairs and heritage-style rigging.
Will the cord break down too early in marine settings?
No. The rate of breakdown depends on environmental conditions and strain. When properly tensioned and used in standard aquaculture cycles, our ropes remain stable throughout their working life, then break down gradually without leaving waste behind.
Is bulk pricing available for cooperatives or distributors?
Absolutely. We work with aquaculture co-ops, gear suppliers, and commercial farms on custom pricing and recurring supply plans. Contact us directly for volume terms or apply for a wholesale account here.
Do you ship internationally?
Yes. Orders can be shipped directly from our manufacturing facility or California warehouse and delivered worldwide. We work with international clients across Europe, Asia, and coastal markets in North and South America.