Application → Aquaculture
Aquaculture

Re:Ocean™ marine-biodegradable buoys

A five-year service life — and if a buoy is ever lost or breaks,
it biodegrades in seawater instead of lingering as marine debris.

The problem

Korea banned styrofoam buoys in 2023 — the replacement was just another plastic.

Styrofoam fragments into marine microplastics, so the Korean government banned it from aquaculture. But with no real alternative, its replacements are still conventional plastic — PP and HDPE — that doesn't break down at sea. The microplastic problem never left, and regulators are still searching for an answer. Re:Ocean is one: the working life of a plastic buoy, then full biodegradation in seawater.

Solution — Re:Ocean

As durable as conventional — and it doesn't last forever at sea

01Fully biodegradableLost or broken, a buoy biodegrades in seawater to ASTM D6691 — no microplastics left behind.
02Conventional-grade toughnessA five-year service life, tested to the same durability criteria as petroleum buoys — impact, fatigue, thermal cycling.
03Direct replacementInjection-molded in standard double-ball forms (240 / 450 mm) — a drop-in for the PP and HDPE buoys in use today.
Certified & tested

Korea's first and only bio-material buoy,
certified by the Ministry of Oceans and Fisheries (MOF)
to the same standard as petroleum buoys.

✓ MOF quality certification ✓ Korea Eco-Label · Marine (EL724) ✓ KCL accredited testing ◷ TÜV OK Biodegradable MARINE — in progress

Tested to petroleum-buoy criteria — impact drop, joint & ring fatigue, thermal cycling and marine exposure — with heavy metals, organotin and flame retardants all non-detect, and marine ecotoxicity cleared to ISO 5430.

Ministry of Oceans & Fisheries certified-buoy result
MOF quality certification
Korea Eco-Label Marine certificate — REO-MR130
Korea Eco-Label · Marine (EL724)
KCL accredited test report — Re:Ocean 450
KCL accredited test report
In the field

Proven in real seas — in Korea and Indonesia

Daeijakdo real-sea trial, Incheon
Korea Incheon · Daeijakdo

Two rounds of six-month real-sea exposure — tidal-flat sediment and open seawater — confirming durability and biodegradation in service. 2025–26, with KCL.

Field deployment, Indonesia
Indonesia Serang · Pari Island

1,200 buoys replacing PET-bottle floats on seaweed farms across two sea areas near Jakarta — deploying from 2026 with Politeknik AUP, under the KOICA CTS program.

The grade
REO-MR130 PHA / PBS · injection molding MARINE
26 MPa
Tensile
70 %
Elongation
12 kJ/m²
Impact
110 °C
HDT
10 g/10min
MFR

A marine-grade compound engineered for buoy durability — injection-moldable,
with the toughness and heat resistance a working buoy needs.

↓ TDS↓ MSDS

Source Re:Ocean buoys or the REO-MR130 grade

Free samples available — up to 50 kg.

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