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ENGINEERED POLYMER SOLUTIONS · WA SINCE 1999

Tough plastics. Tougher jobs.

Engineered HDPE that keeps air, water and people moving — safely. Designed, analysed and fabricated for the industry.

See our capabilities
§01

What we do

Air. Water. People.

Three product pillars built for tough environments.

Row of large-diameter HDPE Polyduct sections strapped on a flatbed at sunrise
Air

Mine ventilation ducting

HDPE ducting for positive and negative pressure. Straights, elbows, T-pieces, Y-pieces, branches and adapters — custom sizes and custom geometries.

See the Air range
Small HDPE Donut pump float — up to 500 kg load
Water

Dewatering systems

Donut pump floats, modular pontoons and self-buoyant intake screens — products that pay for themselves. Transport-friendly.

See the Water range
Escapeway workers in the mine
People

Flat Pack Escapeways

Life-of-mine HDPE escapeway system. Hundreds of metres per shipping container, complete supply package.

See the People range
§02

How we work

Design. Analyse. Fabricate.

More than fabrication — we engineer the solution.

01

Design

3D concepts, layouts and visualisations. R&D on project-specific innovations.

02

Analyse

FEA analysis. Computational Fluid Dynamics where airflow or intake behaviour matters.

03

Fabricate

CNC routing (4100 × 2055 mm bed), fusion butt-welding and DVS 2207-4 extrusion welding — all under supervision.

§03

Cases in the field

Shipped. On-site. Working.

pump float lifted via crainCase · 01 · Dewatering

Large-scale 3,200 × 3,030 mm pump float for a 3-tonne 110 kW pump

  • 3,200 × 3,030 mm custom HDPE donut float
  • 4-point one-over-two lift rig — FEA-verified
  • Sub-2.7 m transport width — no permits, no escort
  • Zero coating maintenance over pump life
  • Dispatched from Jandakot
HDPE ducting loaded on flatbed for site dispatchCase · 02 · Ventilation

HDPE ventilation ducting — workshop to site

  • Modular PolyDuct, flanged end-treatments
  • Factory butt-welded to DVS 2207-4
  • Dispatched from Jandakot
Large HDPE pump float deployed in dewatering pondCase · 03 · Dewatering

Flygt pump float — service interval extended from 3 months to 12

  • Pump lowers in from the top — no underside bolting
  • One float fits 5 pump sizes (5 / 8 / 18 / 20 / 37 kW)
  • Maintains pump height plus only 20 mm vs ≈ 600 mm on underside-bolt designs
  • Hi-vis yellow HDPE — impact-resistant, chemical-resistant
  • Reported by a gold-mining client
§04

Our experience

Projects that prove it.

Ventilation, dewatering and egress work for mines across Western Australia and beyond.

View all projects
Modular HDPE pontoon — workshop fit-upWaterModular pontoon — workshop buildNumbered yellow HDPE survey buoys ready for deploymentSurvey BuoysBuoy batch — site deliveryHDPE pump-float install on Pilbara red earthWaterPump-float install — Pilbara

Did you know

Reducing friction, leakage and recirculation directly impacts fan energy — and HDPE has a friction coefficient of 0.02, the lowest of common ducting materials.

◆ Resource · PDF · 28 pages · 3.4 MB

The 2026 Polyline Capability Statement.

Our full product range, fabrication capacity and the engineering we back it with — packaged as a single PDF for procurement.

Have drawings? Send them our way.

Tell us your project — pump specs, duct diameters, site access. Our engineering team will review and scope it.

Start a quoteCall (08) 9414 1535