VoluFab

HDPE

Food-grade, chemically inert polyethylene — the economical plastic for tanks, food-contact parts and marine wear components.

Get an instant quote Lead time: CNC 3-5 days; injection molding 10-15 days after tooling

Key properties

Key properties
Excellent chemical resistance (acids, alkalis, solvents)
Food-grade (FDA) formulations available
Density ~0.94-0.96 g/cm³ (floats)
Tough to about -60°C
Continuous service ~60-80°C
Non-stick, low-friction surface

Common applications

  • Food processing and cutting surfaces
  • Tanks, containers and liners
  • Chemical and marine components
  • Chutes and wear plates
  • Pipe fittings and manifolds
  • Bottle caps and closures

Processes available

  • CNC machining of sheet/rod
  • Injection molding
  • Rotational molding

Surface finishes

  • As machined (waxy finish)
  • Textured
  • Flame treated (for bonding and painting)

Cost & pricing

Low-cost commodity plastic — inexpensive and quick to machine.

Tolerance: CNC ±0.2mm (thin sections may warp); molding ±0.15mm.

Frequently asked questions

Is HDPE safe for food contact?
Yes — FDA food-grade HDPE is standard for cutting boards and food-handling parts in the Thai food industry.
Can HDPE be welded or glued?
It welds well with hot-air welding; most adhesives do not stick without flame or corona treatment.

Frequently asked questions

How long does production take?

Lead time depends on the process and quantity — 3D printing typically ships in 2–3 business days, CNC machining in 3–5, and injection molding in 10–15 after tooling. You'll see the exact lead time on every quote.

What is the standard tolerance?

CNC-machined parts are held to ±0.1 mm as standard, with ±0.05 mm achievable on critical features. 3D-printed parts are typically ±0.2–0.3 mm. Add your critical dimensions in the notes field.

What is the minimum order quantity?

There is no minimum order — we produce single prototype parts as easily as large production runs. Quantity discounts start from around 10–25 pieces.

What surface finishes are available?

A wide range of finishes is available locally, including as-machined/printed, bead blasting, anodizing (clear, black, gold), powder coating, painting and polishing.

How do I get a quote?

Upload your CAD file (STL, STEP, IGES or 3MF) to the instant-quote tool — the VoluFab pricing engine returns a real quote in seconds, with DFM feedback included.

Need HDPE parts?

Upload your CAD file and get a real quote from the VoluFab pricing engine in seconds.

Upload CAD & get a quote