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Caracol HDPE Pellets – Chemical-Resistant Feedstock for Large-Format 3D Printing

What you get

Lot datasheet + parameters drying and extrusion settings for your LFAM system
Dry, sealed packaging shipped ready to run, with a re-dry schedule

Materials, Engineering, FGF 3D Printing Materials, Jigs&Fixtures, LFAM 3D Printing Materials, Manufacturing, Plastic Pellets 3D Printing Materials · FFF, LFAM

Caracol HDPE Pellets – Chemical-Resistant Feedstock for Large-Format 3D Printing

Chemical-resistant HDPE pellets qualified for large-format additive manufacturing (LFAM) — low-moisture, low-friction big parts and wet-environment tooling at pellet cost.

✓ Broad chemical resistance and very low moisture uptake — built for tanks and marine
✓ Ships sealed with a lot datasheet + drying, adhesion, and cooling parameters
✓ Lead time: 1–2 business days from L.A. stock — volume & PO on request

Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.

NDA standard Ships in 1–2 business days

Chemical-safe acids, bases, solvents

1–2 days from L.A. stock

Low moisture minimal drying

Lot datasheet in every order

What your process engineer actually checks

Chemical and moisture resistance you can verify

HDPE shrugs off acids, bases, and most solvents and absorbs almost no water, so tanks, ducting, and wet-shop fixtures stay stable where engineering plastics swell or crack. Because HDPE is crystalline and prone to warp, every lot ships with heated-chamber, adhesion, and cooling parameters so large flat parts stay flat.

A materials engineer on the line

Questions on drying schedules, warpage, recyclate ratios, or glass-fiber content? A materials engineer answers directly — not a contact-form bot. Most replies in under 4 hours, NDA standard.

Chemical + moisture

Resistance

190–220 °C

Extrusion temp

~0.95 g/cm³

Density

Very low moisture

Uptake

About this product

Caracol HDPE is a high-density polyethylene pellet feedstock qualified for Caracol large-format additive manufacturing (LFAM) extruders. It brings HDPE's signature strengths — broad chemical resistance, very low moisture uptake, low friction, and near-water density — to meter-scale parts at pellet cost. It is the go-to for tanks, ducting, marine and wet-environment components, and low-friction fixtures, with heated-chamber and cooling guidance shipped to keep this crystalline polymer flat on big prints.

Why engineers choose Caracol HDPE

Four things production teams verify before running HDPE on a large-format system.

Broad chemical resistance

HDPE resists acids, bases, and most solvents, so tanks, ducting, and wet-process fixtures survive environments that degrade many engineering plastics.

Very low moisture uptake

HDPE barely absorbs water, so parts stay dimensionally steady in wet and humid service — and drying needs before printing are minimal.

Low friction & light

A slick, self-lubricating surface and near-water density suit chutes, guides, wear strips, and lightweight parts that must not stick or bind.

Warp managed for big parts

HDPE is crystalline and wants to shrink. Every lot ships with heated-chamber, adhesion, and cooling guidance so large flat sections stay flat.

How Additive Plus delivers it

Every order ships production-ready — qualified feedstock, parameters, and a datasheet.

Step 01

Source & qualify

High-density polyethylene (HDPE) sourced and qualified against Caracol's extrusion testing so the pellet runs on LFAM systems without a re-development cycle.

Step 02

Dry & screen

HDPE barely absorbs moisture, so drying is minimal — we still ship it sealed. Warp control matters more: each lot ships with chamber, adhesion, and cooling guidance for big flat parts.

Step 03

Verify & document

Each lot ships with a datasheet and recommended drying and extrusion parameters, so you reorder the same behavior — not a new qualification.

Material overview

HDPE (high-density polyethylene) is a tough, lightweight polyolefin known for outstanding chemical and moisture resistance and a naturally slick, low-friction surface. On a large-format extruder it produces big chemical-handling, marine, and fixture parts that shrug off solvents and water. Its main design consideration is shrinkage: like all semi-crystalline polyolefins it wants to warp, so a heated environment and the cooling parameters we supply matter on large flat sections.

Technical specifications

Representative HDPE properties. Lot-specific values are on the datasheet shipped with every order. Confirm exact figures with a materials engineer for design-critical work.

Property	Typical value
Polymer	High-density polyethylene (HDPE)
Form	Pellets (granulate) for LFAM/FGF extruders
Density	~0.95 g/cm³
Tensile strength	20–30 MPa
Tensile modulus	800–1,200 MPa
Elongation at break	>50% (ductile)
Notched Izod impact	High — often no break
Heat deflection (HDT, 0.45 MPa)	~70–80 °C
Extrusion temperature	190–220 °C
Recommended drying	Minimal — optional 60–65 °C for 2 h
Reinforcement	Unreinforced (compounded grades on request)

Typical applications

Where large-format HDPE earns its place.

Chemical & process

Tanks, ducting, splash guards, wet fixtures

Marine

Weather- and water-exposed components

Low-friction guides

Chutes, wear strips, slides, and rollers

Jigs & fixtures

Wet-shop tooling that must resist cleaning agents

Molds & patterns

Layup and casting tooling that must release

Housings & enclosures

Lightweight, watertight large parts

Not sure HDPE is the right pellet?

Same large-format pellet family — pick the property that matters most.

Need heat & stiffnessPPHigher heat and stiffness, same chemical resistance.Compare pellet →
Need max chemical + heatPCHigher heat deflection for hot, harsh service.Compare pellet →
Need structural strengthPA6Nylon, incl. GF, for load-bearing tooling.Compare pellet →

Tell us the chemicals, temperature, and part size — a materials engineer will confirm HDPE vs. PP or an engineering grade and send heated-chamber, adhesion, and cooling parameters to keep big parts flat. Most replies in under 4 hours, NDA standard.

Why source HDPE through Additive Plus

Qualified feedstock, not a generic bag of pellets — sourced and qualified against Caracol LFAM extrusion, shipped sealed with a datasheet and parameters.
Warp guidance that ships with the pellet — heated-chamber, adhesion, and cooling settings so crystalline HDPE stays flat on large parts.
Custom and recycled blends on request — recycled-content or compounded HDPE qualified before you commit.
A materials engineer on the line — chemical-compatibility, warpage, and part-environment questions answered directly. Under 4h reply, NDA standard.

Brand	Caracol
Technology	FFF, LFAM
Printing Materials	Plastic Pellets
Material	HDPE (Polyethylene)
Reinforcement	Unfilled
Application	Engineering, Jigs & Fixtures, Manufacturing

Product videos

Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

Is Caracol HDPE a filament or a pellet material?

Caracol HDPE is a pellet (granulate) feedstock for large-format additive manufacturing (LFAM/FGF) extruders, not a filament. Pellets are the same feedstock form used in blow and injection molding, so material cost per kilogram is far lower than spooled filament — the main reason teams move large chemical and marine parts to pellet extrusion. Each order ships with a lot datasheet and recommended extrusion, adhesion, and cooling parameters.

Why choose HDPE for chemical and marine parts?

HDPE resists acids, bases, and most solvents and absorbs almost no water, so tanks, ducting, splash guards, and marine components stay stable where many engineering plastics swell, craze, or corrode. It is also light (near-water density) and low-friction. Caracol HDPE brings those properties to meter-scale parts at pellet cost. For higher heat or stiffness in the same chemical family, ask a materials engineer about PP.

Does Caracol HDPE warp, and how do you control it?

HDPE is semi-crystalline, so it shrinks as it cools and can warp on large flat sections — this is the main design consideration, not moisture. We control it with a heated, draft-free build environment plus the adhesion and cooling parameters shipped on every lot datasheet. A materials engineer can review your part geometry and recommend orientation and settings to keep big parts flat.

Does Caracol HDPE need drying before printing?

Very little. Unlike nylon or PC, HDPE is a polyolefin and absorbs almost no moisture, so drying needs are minimal — we still ship it sealed and note an optional light pre-dry (around 60–65 °C for 2 hours) for humid shops. The datasheet with each lot specifies whether any drying is needed for your storage conditions.

Which systems is Caracol HDPE qualified for?

Caracol HDPE is sourced and qualified for Caracol large-format additive manufacturing extruders, so it runs without a fresh process-development cycle. If you run a different pellet extrusion system, contact a materials engineer — we will confirm compatibility and share a suitable starting parameter set for your machine and nozzle size.

What extrusion temperature does HDPE run at?

Caracol HDPE typically extrudes in the 190–220 °C range, on the lower end for the pellet family, with a heated chamber recommended to control warpage on large parts. Because extruders and nozzle sizes vary, the recommended temperature, flow, adhesion, and cooling settings ship on the lot datasheet with every order and a materials engineer can tune them for your system.

Can I order a sample before committing to a full order?

Yes. We can supply a sample of Caracol HDPE, or run a paid benchmark part, before you commit to a production quantity — paired with a capability call with a materials engineer to confirm chemical compatibility, warp control, and extrusion parameters for your application. Ordering in bulk or need an official PO? We handle volume pricing and purchase orders directly.

Place your order, or talk to an engineer first

Order Caracol HDPE Pellets – Chemical-Resistant Feedstock for Large-Format 3D Printing direct, or talk to materials engineer

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