3D Printing Materials Guide for Bali Projects

Choosing a 3D printing material gets easier when you flip the question: not “which material is best”, but “where will this part actually live”. A part that sits on a car dashboard, a camera mount on a motorbike, and a display piece on a shelf need three different plastics — and the wrong pick usually announces itself only after the part warps, goes brittle, or snaps. This guide covers the six materials we use day to day at 3D Lab Bali: what each is good at, one honest limitation, and when to choose it.

New to the technology? Start with our beginner's guide: what is 3D printing.

Short Answer: Choose by Operating Conditions

If you just want a quick steer, start here:

• Display pieces, scale models, form prototypes — PLA. Cheap, clean, easy to paint.

• Everyday functional parts — PETG. Tougher, and not as brittle as PLA.

• Exposed to heat (inside a car, near a motor) — ABS.

• Exposed to direct sun, outdoors — ASA.

• Has to flex like rubber — TPU or TPE.

• Load-bearing, jigs, engineering parts — Nylon-CF (PAHT-CF).

• Very fine detail, smooth surface — SLA resin, not filament.

If the operating conditions aren't clear yet, just send us a photo. Guessing at a material costs more than asking about one.

The Six Filaments We Use

PLA. A biodegradable plastic, the most common one, and the easiest to print cleanly. It suits large models, architectural models, form prototypes, and anything that will be painted. The limitation: PLA starts to soften at around 60 °C. Inside a car parked in the Bali sun, temperatures pass that — so PLA is not a candidate for parts that get hot.

PETG. The same material as PET bottles, slightly more flexible and far tougher than PLA. This is our everyday workhorse for functional parts: brackets, clips, covers, mounts. The limitation: surface detail is a touch softer than PLA's, and it is fussier to sand.

ABS. Strong, rigid, dimensionally stable, abrasion- and chemical-resistant, and it keeps working across a wide temperature range. This is the pick for parts that get hot. The limitation: ABS is not UV-stable. Left in the sun it fades, turns brittle, and eventually cracks.

ASA. Mechanically similar to ABS, but UV-resistant. For anything mounted outdoors — motorbike mounts, antenna brackets, garden markers — ASA is the answer, and in Bali that difference shows up quickly. The limitation: it costs more than both PLA and PETG.

TPU and TPE. TPE is a rubber-and-plastic combination; TPU is its more versatile derivative. Both produce parts that are flexible, impact-resistant, waterproof, UV-resistant and reasonably chemical-resistant — gaskets, bumpers, soles, flexible covers. For parts that need to feel like rubber, TPU or TPE is the practical choice in our service. The limitation: they print more slowly, and very fine detail is hard to hold.

Nylon-CF (PAHT-CF). A composite of PA12 and carbon fibre. Water absorption is low, and its mechanical and thermal properties hold up even when the part gets wet. We use it for engineering work: functional prototypes, machining fixtures, jigs, and low-volume production parts. The limitation: it is the most expensive material on this list, so it makes no sense for display pieces.

Three Questions Before You Choose

Most cases resolve by answering these three in order:

• Will the part get hot? If yes, PLA is out. Inside a car, near a motor, or in a kitchen — use ABS.

• Will it sit in direct sun? If yes, use ASA. ABS handles heat but not UV, and those are not the same thing.

• Does it carry load, or does it need to flex? Heavy load points to Nylon-CF; flex points to TPU or TPE. If neither applies, PETG is almost always enough.

Keep in mind that material is not the only thing that decides strength. Wall thickness, infill density and print orientation often matter just as much. That is why we tend to ask what the part does rather than only which material you want — the same question comes up when you order a 3D print.

When Filament Isn't the Answer

For very fine detail and a smooth surface straight off the machine — figurines, jewellery, dental models, small parts with intricate texture — SLA resin beats every filament above. The trade-off is that resin prints need washing and curing, which makes the job take longer. The full comparison is in FDM vs SLA, and the timings in how long 3D printing takes.

If you need dozens of identical units in the same material, printing them one at a time is not the cheapest route. At that point silicone molding usually makes more sense: the master is printed once, and the rest are cast.

Frequently Asked Questions

Which material is cheapest?

PLA. But the final price of an order is driven more by object size, print time and the level of finishing than by the material itself. We break that down in 3D printing cost in Bali. Our minimum order is IDR 100,000.

Can you print in a specific colour?

Colour availability varies by material — PLA and PETG have the widest range. Mention the colour you want when you ask for a quote and we'll confirm stock. If it isn't available, the part can still be painted after printing.

Which material is food-safe?

We don't recommend FDM 3D printed parts for direct food contact. The gaps between layers are tiny but real, and they are hard to clean to a genuinely hygienic standard. For needs like this we usually point people towards silicone molding instead.

If I pick the wrong material, can it be reprinted?

Yes — we keep your file, so nothing starts from scratch. But a reprint means extra cost and extra time, which is why we would rather talk through the operating conditions up front.

Still Unsure Which Material?

Just tell us what the part is for and where it will live — that is usually enough for us to recommend a material. Send us your file or idea on WhatsApp for a free consultation via our contact page, or see the service details on our 3D printing page. We're open Monday to Friday, 10:00–17:00 WITA, in Jimbaran.