PLA+ filament spools for strong functional 3D prints
    Material Guide

    Best PLA+ Filament

    Top 5 strongest PLA filaments for functional, durable 3D prints

    12 min readJanuary 13, 2025

    Quick Answer

    Polymaker PolyMax PLA is the strongest all-round PLA+ pick. Polymaker rates it at up to 9x the impact resistance of standard PLA while keeping PLA's easy printability. If you want to spend less, Overture PLA Pro covers most functional needs at a lower price position — compare current pricing before ordering.

    What is PLA+ Filament?

    PLA+ (also known as PLA Pro, PLA Plus, or Tough PLA) is an enhanced version of standard PLA that offers significantly improved mechanical properties. Through proprietary additives and modified polymer chains, PLA+ provides better impact resistance, layer adhesion, and overall durability.

    The best PLA+ filament options now use formulations that rival PETG for functional parts while retaining PLA's easy printability. Whether you're making tool handles, mechanical parts, or durable prototypes, PLA+ is a sensible default. Availability, pricing and shipping vary by seller, so check those at checkout.

    TL;DR — Quick Summary

    Polymaker PolyMax PLA is the strongest all-round PLA+ pick.

    • 1Best Overall: Polymaker PolyMax PLA
    • 2Best Value: Overture PLA Pro
    • 3Budget Pick: SUNLU PLA+
    • 4Key Benefit: 3-9x impact resistance of standard PLA

    What is PLA+?

    PLA+ An enhanced version of PLA (Polylactic Acid) modified with impact modifiers and additives to increase toughness, layer adhesion, and heat resistance. Also called PLA Pro, Tough PLA, or PLA Plus.

    Tough PLA vs PETG Comparison

    Not sure whether to choose PLA+ or PETG? Our detailed comparison helps you decide based on your specific project needs.

    Top 5 PLA+ Filaments

    Polymaker PolyMax PLA
    Editor's Choice

    1. Polymaker PolyMax PLA

    Premium

    Polymaker PolyMax PLA is the gold standard for PLA+ filaments. It offers 9x the impact resistance of regular PLA while maintaining easy printability. Perfect for functional parts and prototypes.

    Pros

    • 9x impact resistance of PLA
    • Excellent layer adhesion
    • Low warping
    • Engineering-grade strength
    • Widely stocked

    Cons

    • Usually the most expensive option here
    • Requires dry storage

    Specifications

    Diameter: 1.75mm ± 0.02mmPrint Temp: 190-230°CBed Temp: 25-60°CWeight: 1kg
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    Overture PLA Pro
    Best Value

    2. Overture PLA Pro

    Mid-range

    Overture PLA Pro delivers most of the practical benefit of premium PLA+ at a lower position in the market. Spools are commonly bundled with a build surface, and results are consistent enough for functional prints.

    Pros

    • Great value
    • Build surface included
    • Consistent quality
    • Good strength

    Cons

    • Less impact resistant than PolyMax
    • Limited colors

    Specifications

    Diameter: 1.75mm ± 0.03mmPrint Temp: 205-225°CBed Temp: 50-60°CWeight: 1kg
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    eSUN PLA+

    3. eSUN PLA+

    Budget-oriented

    eSUN PLA+ offers excellent value with improved toughness over standard PLA. Available in dozens of colors, it's perfect for functional prints on a budget.

    Pros

    • Budget-friendly
    • Wide color selection
    • Good toughness
    • Easy printing

    Cons

    • Slightly more stringing
    • Needs tuning

    Specifications

    Diameter: 1.75mm ± 0.03mmPrint Temp: 205-225°CBed Temp: 60-80°CWeight: 1kg
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    Prusament PLA

    4. Prusament PLA

    Premium

    Prusament PLA offers the tightest diameter tolerances in the industry (±0.02mm). While not marketed as PLA+, its enhanced formulation provides superior mechanical properties.

    Pros

    • Exceptional consistency
    • Tight tolerances
    • Beautiful finish
    • Engineering quality

    Cons

    • Limited availability
    • Positioned at the premium end

    Specifications

    Diameter: 1.75mm ± 0.02mmPrint Temp: 215-230°CBed Temp: 50-60°CWeight: 1kg
    Shop on Polymaker
    SUNLU PLA+

    5. SUNLU PLA+

    Budget-oriented

    SUNLU PLA+ is the budget-oriented choice, offering improved strength over standard PLA. Suited to people who print frequently and need functional parts without paying premium spool prices.

    Pros

    • Most affordable
    • Vacuum sealed
    • Decent strength
    • Good color range

    Cons

    • Lower impact resistance
    • Occasional inconsistencies

    Specifications

    Diameter: 1.75mm ± 0.02mmPrint Temp: 200-230°CBed Temp: 50-60°CWeight: 1kg
    Shop on Polymaker

    Complete Filament Guide

    Explore our comprehensive guide covering all filament types including PLA, PETG, ABS, TPU, and specialty materials.

    What's the Difference Between PLA and PLA+?

    PropertyStandard PLAPLA+
    Impact ResistanceLow (brittle)High (3-9x better)
    Layer AdhesionGoodExcellent
    Heat Resistance~55°C~60-65°C
    Print Temperature190-210°C205-225°C
    Typical Cost PositionBaselineUsually a step above standard PLA

    Frequently Asked Questions

    What's the difference between PLA and PLA+?

    PLA+ (also called PLA Pro or Tough PLA) has enhanced impact resistance, better layer adhesion, and improved heat resistance compared to standard PLA. It's modified with additives that make it 3-9x more impact resistant while maintaining easy printability.

    Is PLA+ stronger than PETG?

    Premium PLA+ like Polymaker PolyMax has comparable impact resistance to PETG, but PETG still has better heat resistance (80°C vs 60°C) and chemical resistance. PLA+ is easier to print and has less stringing than PETG.

    What temperature should I print PLA+ at?

    Most PLA+ filaments print best between 205-225°C for the nozzle and 50-60°C for the bed. This is slightly higher than standard PLA (190-210°C). Check your specific brand's recommendations as they vary.

    Can PLA+ be used outdoors?

    PLA+ is not recommended for long-term outdoor use. While more durable than standard PLA, it still degrades under UV exposure and can warp in temperatures above 60°C. For outdoor applications, use ASA or PETG instead.

    Is PLA+ food safe?

    PLA+ is not certified food safe due to the additives used to enhance its properties. The layer lines in FDM prints also harbor bacteria. For food-safe applications, use food-grade PETG with food-safe coatings.

    Polymaker Filament Guide

    Learn more about Polymaker's complete filament lineup including PolyMax, PolyLite, and PolyTerra.

    Conclusion: Which PLA+ Should You Buy?

    For maximum strength and durability, Polymaker PolyMax PLA is the clear winner. Its 9x impact resistance improvement over standard PLA makes it ideal for functional parts and prototypes.

    For best value, Overture PLA Pro delivers impressive strength at a lower price position. And on a tight budget, SUNLU PLA+ still offers solid improvements over standard PLA. Compare the current checkout price, spool weight and shipping cost before ordering — this guide does not track live pricing or stock.

    Last Updated: January 13, 2025