Quick Answer
PLA+ is PLA that a manufacturer has modified, most often to make it less brittle than ordinary PLA while keeping PLA's easy printing. "PLA+" is a marketing label, not a standard, so the actual improvement — and the right settings — vary from brand to brand. The best PLA+ filament for you is one whose manufacturer clearly documents what it is designed for and how to print it, and whose stated goal matches your part.
Consider PLA+ for handled or functional indoor parts — brackets, clips, fixtures, props — where standard PLA has cracked or snapped. Standard PLA is often perfectly adequate for decorative models and simple prototypes. If the part will face heat, sun, or needs to flex, PLA+ is probably the wrong material: look at PETG, ASA or TPU instead.
Just want the general PLA buying decision? See our Best PLA Filament guide. Not sure PLA-type material fits at all? Try the Filament Selector.
What Does the "+" Actually Mean?
PLA+, PLA Plus, PLA Pro and Tough PLA are product-family names chosen by manufacturers. None of them refers to a single, standardized formulation. Two spools labeled "PLA+" from different brands can contain different modifications, behave differently on the printer and perform differently in the finished part.
In general, manufacturers start from polylactic acid and change the formulation to target a goal — most commonly lower brittleness, but sometimes easier high-speed printing, a different surface finish or better layer bonding. How they do it is usually proprietary, and this guide does not speculate about the specific chemistry of any product.
That has three practical consequences:
- Brand comparisons need data, not labels. "PLA+" on one spool tells you little about how it compares with "PLA+" on another.
- Settings don't transfer. A temperature that works for one brand's PLA+ is not automatically right for another's. Start from each manufacturer's published range.
- The same brand's PLA and PLA+ are the fairest comparison. A manufacturer's own data sheets for its standard and modified PLA show what its "+" actually changes.
If you're comparing PLA+ against PETG specifically for load-bearing or functional parts, our Tough PLA vs PETG for functional parts guide goes deeper into impact, creep and heat.
PLA vs PLA+: How They Typically Compare
General tendencies only. Specific products differ, and the manufacturer's data sheet overrides anything in this table. No numbers are given because there are no universal figures that apply to all PLA+.
| Factor | Standard PLA | PLA+ (varies by formulation) |
|---|---|---|
| Ease of printing | Very easy; the most forgiving common material | Usually close to PLA; some products need small temperature or cooling adjustments |
| Toughness / impact behavior | Tends to be brittle; snaps rather than bends | Usually the main goal: tends to flex or dent before cracking (varies by product) |
| Stiffness | High; parts feel rigid | Often similar, sometimes slightly lower as a trade-off for toughness |
| Surface finish | Crisp detail, many finishes available | Often similar; some PLA+ has a slightly different sheen or matte look |
| Dimensional behavior | Low warping, predictable | Generally low warping; check brand tolerance claims |
| Temperature requirements | Brand-specific range | Brand-specific range; may differ from the same brand's standard PLA |
| Stringing tendency | Low when dry and tuned | Similar to slightly higher on some products; moisture makes both worse |
| Heat resistance | Softens at relatively low temperatures | Usually similar to PLA; do not assume a big improvement unless the data sheet shows one |
| Post-processing | Sands and paints well; can be brittle when drilled | Sands and paints similarly; often less prone to cracking when drilled or screwed |
| Typical use cases | Models, prototypes, decorative prints | Brackets, clips, fixtures, props that get handled |
The key takeaway: PLA+ usually changes how a part fails more than where it can be used. It can make a clip survive being dropped, but it generally does not turn PLA into a heat- or outdoor-resistant material.
When PLA+ Makes Sense
PLA+ is worth considering when you want PLA's easy printing but standard PLA has proven too brittle:
- Functional household parts — hooks, cable clips, organizers and replacement knobs that get handled daily.
- Brackets and fixtures for indoor use, where a bit of give before failure is better than a sudden snap.
- Functional prototypes that need to be assembled, screwed together or test-fitted repeatedly.
- Cosplay parts and props that will be worn, bumped or transported — see our cosplay printer guide.
- Snap-fits and parts with threads or screws, where standard PLA tends to crack around the fastener.
- General-purpose printing when you'd like one tougher PLA-type material that still prints easily on an open-frame printer.
For a broader look at which materials hold up in load-bearing prints, see best filament for functional parts.
If these uses match yours, Polymaker documents its Tough PLA family, PolyMax, for exactly this kind of part — see the PolyMax range at the Polymaker store (affiliate link), or read on for the other options and the criteria to compare them.
When Standard PLA Is Enough
PLA+ is not automatically an upgrade. For many prints it adds little practical benefit:
- Decorative models, figures and display pieces that are rarely handled. Stiffness and fine detail matter more than impact toughness.
- Quick form-and-fit prototypes you'll print once, check and throw away.
- Low-stress parts such as covers, labels or desk items that never take impacts.
- Special finishes. Silk, marble, wood-fill and many color effects are more widely available in standard PLA lines.
- When your standard PLA already works. If a part hasn't failed in PLA, switching materials is a new variable, not a guaranteed improvement.
Our Best PLA Filament guide covers choosing standard PLA in detail.
When PLA+ Is Still the Wrong Material
If your requirement is one of these, look at a different material category rather than a different PLA+:
| Requirement | Why PLA+ struggles | Consider |
|---|---|---|
| Heat (hot car, near motors or lamps) | PLA-based materials generally soften at relatively low temperatures | PETG, ASA, ABS |
| Long-term outdoor sun exposure | Not generally considered UV-stable | ASA, or PETG for moderate exposure |
| Flexibility (grips, gaskets, bumpers) | Tougher than PLA, but still a rigid plastic | TPU |
| Wear-resistant gears, sliding or engineering parts | Limited wear resistance and heat tolerance | Nylon |
| Damp environments | Works indoors, but PETG usually handles moisture better | PETG |
For the broad trade-offs between PLA-type materials and PETG, see PLA vs PETG.
How to Choose a PLA+: Selection Criteria
These criteria apply whichever brand you choose, and they're useful even if you never click a shop link.
Manufacturer documentation
Because PLA+ is not a standard, the data sheet is the only reliable description of what you are buying. Brands that publish temperature ranges, drying guidance and mechanical data give you something to compare; a spool with only "stronger than PLA" on the label does not.
What the formulation is designed for
Some PLA+ lines emphasize impact toughness, others speed, surface finish or low cost. Match the product's stated goal to your part instead of assuming every PLA+ is "tough".
Printer compatibility
Check the recommended nozzle temperature fits your hotend, that the spool fits your holder, dryer or multi-material feeder, and whether cardboard spools suit your setup.
Recommended temperature range
The range on the spool is your starting point. A wide range means you'll need a temperature tower to find where your printer gives the best layer bonding for that spool.
Color and finish
Pigments and finishes (silk, matte, translucent) can change how a filament prints and how tough it is. A color from the same product line may still behave a little differently.
Dimensional consistency claims
A published diameter tolerance and a good reputation for meeting it matter for parts that must fit together; they matter less for display pieces.
Spool format
1 kg, larger spools and refills change cost per part and storage needs. Big spools only save money if you'll use them before moisture becomes a problem.
Moisture and storage
PLA+ absorbs moisture like PLA. If you buy several colors, plan for sealed storage or a dryer so the last spool prints as well as the first.
Required mechanical behavior
Decide first whether your part needs toughness, stiffness, heat resistance or flexibility. PLA+ mainly helps with the first. For the others a different material may be the real answer.
Print speed requirements
If you run a fast printer, look for products the manufacturer positions for high-speed printing and follow its flow guidance; standard PLA+ may need slower speeds or higher temperatures to bond well.
For comparing delivered cost across sellers, see our guide to comparing filament deals.
Printing PLA+: Practical Guidance
There is no universal PLA+ setting. Use the manufacturer's recommendations as the starting point and adjust from there.
- Nozzle temperature: start in the middle of the range on the spool, then print a temperature tower. Toughness often depends on good layer bonding, so the best-looking temperature isn't always the strongest.
- Bed temperature: use the manufacturer's recommendation for your build surface. PLA+ generally doesn't need an enclosure.
- Cooling: PLA-type materials usually like strong part cooling for detail and overhangs. If functional parts split along layers, try slightly less cooling.
- First layer: a clean plate and a correct Z-offset solve most adhesion issues. See first layer problems.
- Retraction and stringing: tune retraction for your extruder and spool. See the stringing fix guide.
- Speed: printing faster than your hotend can melt the filament weakens layers. Unless a product is designed for high-speed printing, don't assume it will bond well at your printer's maximum speed.
- Moisture and storage: keep opened spools sealed. See filament storage and filament dryers.
PLA+ Troubleshooting
Where to look first. Brands behave differently, so change one thing at a time.
| Symptom | Likely areas to check | What to try |
|---|---|---|
| Poor layer adhesion / parts split along layers | Nozzle temperature too low for this spool, heavy cooling, printing too fast for the hotend, damp filament | Print a temperature tower within the manufacturer's range; reduce cooling slightly; slow down |
| Stringing | Temperature near the top of the range, damp filament, retraction not tuned | Dry the spool, lower temperature within range, tune retraction |
| Brittle filament or snapping strands | Moisture, old or poorly stored spool | Dry per manufacturer guidance and store sealed |
| First layer not sticking or lifting | Bed level/Z-offset, dirty surface, bed temperature | Clean the plate, re-check Z-offset, use the manufacturer's bed temperature |
| Unexpected surface finish | Different color or finish in the same line, temperature change, cooling | Treat each new color as a new material; re-tune temperature |
| Inconsistent extrusion | Diameter variation, tangles, partial clog, wet filament | Check the spool for winding problems, clean the nozzle, dry the filament |
PLA+ Options Worth Considering
Not a ranking. These are widely available PLA+ or PLA-family products included so you can see how different manufacturers position them. Check each manufacturer's current documentation before buying.
Polymaker PolyMax PLA (Tough PLA family)
- Who it may suit: people printing functional indoor parts who want toughness from a documented, PLA-type material.
- Why it's included: Polymaker positions PolyMax specifically as a tougher PLA and publishes technical data for it.
- Manufacturer positioning: an impact-modified PLA for functional parts that keeps PLA-like printability.
- What to verify: current temperature and drying guidance, available colors and spool format.
- Limitations: still a PLA-based material — not intended for heat or long-term outdoor use.
Affiliate link — we may earn a commission at no extra cost to you.
Overture PLA Pro
- Who it may suit: general-purpose printing where you want a PLA+-type material from a widely stocked brand.
- Why it's included: a commonly available "PLA Pro" product line.
- Manufacturer positioning: an enhanced PLA for everyday and functional prints.
- What to verify: published tolerance, temperature range and spool contents.
- Limitations: same PLA-based heat and UV limits.
eSUN PLA+
- Who it may suit: people who want a wide color choice in a PLA+ line.
- Why it's included: one of the longest-established products sold under the PLA+ name.
- Manufacturer positioning: a tougher general-purpose PLA.
- What to verify: the recommended temperatures for the specific color you buy.
- Limitations: behavior can vary between colors; tune each new spool.
SUNLU PLA+
- Who it may suit: frequent printers comparing lower-cost PLA+ options.
- Why it's included: a widely sold budget-oriented PLA+ line.
- Manufacturer positioning: an everyday PLA+ for general printing.
- What to verify: tolerance claims, packaging and temperature range; compare delivered cost.
- Limitations: check reviews for spool-to-spool consistency before buying in bulk.
Prusament PLA (a standard PLA, for comparison)
- Who it may suit: readers who realize standard PLA meets their needs and want a well-documented one.
- Why it's included: it is not marketed as PLA+ — it's here as a reminder that a well-made standard PLA can be the right choice.
- Manufacturer positioning: a standard PLA with published tolerance data.
- What to verify: availability in your region and delivered cost.
- Limitations: not a toughened PLA; don't expect PLA+ impact behavior.
Only Polymaker has a shop link here because it's the only listed brand we have an affiliate relationship with. The other brands are included on editorial merit; buy them from any retailer you trust.
Still not sure PLA+ is the right material?
The Filament Selector asks about heat, outdoor use, flexibility and your printer, then suggests materials to consider.
Frequently Asked Questions
What is PLA+?
PLA+ is a marketing name for PLA that a manufacturer has modified, usually to make it tougher or less brittle than its standard PLA. There is no industry standard defining PLA+, so what the "+" changes, and by how much, depends on the brand and product line.
Is PLA+ stronger than PLA?
Often it is tougher, meaning it tends to resist cracking or snapping under impact better than that brand's standard PLA. That is not the same as being stronger in every way: some PLA+ products are slightly less stiff than standard PLA, and results vary between brands. Check the manufacturer's data sheet and compare like with like.
Is PLA+ the same as Tough PLA?
Not necessarily. PLA+, PLA Plus, PLA Pro and Tough PLA are all product-family names chosen by manufacturers. They usually aim at a similar goal, reduced brittleness, but one brand's Tough PLA and another brand's PLA+ can be different formulations with different settings and behavior.
Does PLA+ need different settings?
Many PLA+ products are recommended at somewhat different temperatures than standard PLA, but the direction and amount vary by brand. Start from the temperature range printed on the spool or published by the manufacturer, then fine-tune with a temperature tower. Do not copy settings from a different brand's PLA+.
Is PLA+ better than PETG?
They suit different jobs. PLA+ is usually easier to print and gives crisper detail; PETG generally handles higher temperatures, damp environments and outdoor exposure better. For parts that will sit in heat or outdoors, PETG or ASA is usually the safer choice. For tough indoor parts where ease of printing matters, PLA+ can be a good fit.
Does PLA+ absorb moisture?
Yes. Like standard PLA, PLA+ picks up moisture from the air over time. Damp filament can cause stringing, rough surfaces, popping at the nozzle and brittle strands. Store opened spools sealed with desiccant and dry them using the manufacturer's recommended settings if print quality drops.
Polymaker Filament Guide
How Polymaker's PolyMax, PolyLite and PolyTerra lines differ.
Verdict
The best PLA+ filament is the one whose manufacturer clearly states what its "+" is designed to improve, publishes how to print it, and matches the job you have in mind. Treat PLA+ as a way to make PLA-type parts less brittle — not as a substitute for PETG, ASA, TPU or nylon when heat, sun, flexibility or wear are the real requirements. And if standard PLA is already doing the job, there's no need to switch.
If toughness from a documented PLA-type material is what you need, Polymaker's PolyMax PLA at the Polymaker store (affiliate link) is a reasonable place to start. This guide does not track live prices or stock — compare delivered cost before ordering.
