SLS Materials for 3D Systems — PA Nylon, Filled & Flexible Powders for Functional Parts

Browse our curated catalogue of SLS materials compatible with 3D Systems printers. Selective Laser Sintering (SLS) is a versatile additive manufacturing technology that enables production of robust, functional plastic parts — ranging from rigid structural components to flexible, rubber-like elements.

Whether you’re designing housings, snap-fit connectors, ducting, tooling, or flexible gaskets, here you’ll find a broad selection of powders: standard and engineered nylons, composite materials, elastomeric plastics, and specialty powders — each tuned for different mechanical, thermal or aesthetic requirements.

Browse our range, compare material data and applications, and pick the ideal solution for prototypes, end-use parts or short-run manufacturing.
DuraForm TPU 90A, 10 kg

DuraForm TPU 90A, 10 kg

$1,225.00
$1,225.00
DuraForm ProX PA, 7.5 Kg

DuraForm ProX PA, 7.5 Kg

$803.60
$803.60
DuraForm ProX HST 7.5kg

DuraForm ProX HST 7.5kg

$803.60
$803.60
DuraForm ProX GF, 10 kg box

DuraForm ProX GF, 10 kg box

$715.40
$715.40
DuraForm PAx Natural, 7.5kg

DuraForm PAx Natural, 7.5kg

$441.00
$441.00
DuraForm PAx Natural, 10kg

DuraForm PAx Natural, 10kg

$578.20
$578.20
DuraForm PAx Black, 7.5kg

DuraForm PAx Black, 7.5kg

$494.90
$494.90
DuraForm PAx Black, 10kg

DuraForm PAx Black, 10kg

$656.60
$656.60
DuraForm PA CF, 10 kg box

DuraForm PA CF, 10 kg box

$1,176.00
$1,176.00
DuraForm PA12 Black, 10 kg

DuraForm PA12 Black, 10 kg

$1,068.20
$1,068.20
DuraForm PA11 Natural, 10 kg box

DuraForm PA11 Natural, 10 kg box

$1,078.00
$1,078.00
DuraForm PA11 Black, 10kg

DuraForm PA11 Black, 10kg

$1,078.00
$1,078.00

DuraForm SLS Powders: Industrial Performance for Functional Parts

The DuraForm SLS portfolio is built to maximize the throughput and quality of 3D Systems' production printers. Each powder offers a specific balance of mechanical properties—such as toughness, stiffness, thermal resistance, or flexibility—allowing engineers to select the exact material required for the application's environment and stress profile.

PA Nylon (PA 12 / PA 11) — Standard SLS Powders

The core of SLS material portfolios is nylon-based powders, particularly PA 12 (polyamide 12) and PA 11. These thermoplastics offer an excellent balance of mechanical strength, durability, and processability. PA 12 is widely used because it combines good tensile strength, toughness and chemical resistance, making it suitable for functional prototypes, housings, jigs/fixtures, end-use parts and structural components.

PA 11 is also used especially when slightly different material behavior is needed: due to its toughness and impact-resistance, PA 11-based parts are often preferred for components requiring resilience, potentially including snap-fit parts or where repeated stress or environmental exposure is expected.

This class offers high reliability and a good compromise between strength, flexibility and cost — ideal when you want parts that closely mimic injection-molded plastic items without the need for tooling.

Composite & Filled Nylons — Enhanced Performance (Glass-filled, Aluminum-filled, etc.)

For applications demanding higher stiffness, improved heat or wear resistance, or enhanced mechanical performance, composite and filled nylons are a natural upgrade. By adding glass, aluminum or mineral fillers to the nylon powder, these materials deliver increased rigidity, better temperature resistance and improved structural stability compared to standard nylon.

Such materials are especially useful when your design must endure mechanical stress, elevated temperatures, or prolonged service life — for example in automotive components, functional housings, tooling fixtures, or mechanical parts where stiffness and longevity are critical.

Flexible & Elastomeric Materials — TPU / TPE for Rubber-like Parts

Not all SLS applications require rigid plastics. When flexibility, resilience, or impact absorption is essential — like gaskets, seals, hoses, grips, padding or snap-fit parts with some give — elastomeric thermoplastics (TPU / TPE) offer a viable solution. These rubber-like SLS materials combine flexibility, tear and abrasion resistance, and good “memory” (i.e., ability to return to original shape).

Thanks to the powder-bed approach of SLS, even flexible geometries like complex curves, hinges and internal structures become feasible — enabling design freedom that often surpasses traditional molding or machining.

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Castable & Specialty Powders — For Metal Casting or Specialized Use-Cases

In addition to functional plastic parts, some SLS powders can be used to produce sacrificial or castable patterns — for example for investment casting or plaster/metal casting. These specialty powders allow the creation of molds or patterns that can be used to produce metal or composite parts without tooling, which is especially valuable for low- to medium-volume production or custom components.

This flexibility widens SLS’s applicability beyond plastic parts, giving designers and manufacturers an alternative path when traditional tooling would be costly or impractical.
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Why Choose SLS — Advantages of Powder-Bed Fusion and SLS Materials

The SLS process offers significant advantages over many other manufacturing or additive methods. Because the unfused powder itself supports the part during printing, there is no need for support structures — this allows production of complex geometries, internal channels, thin walls, interlocking parts, and other shapes that would be challenging with traditional manufacturing.

Moreover, SLS parts often exhibit mechanical properties comparable to injection-molded parts, while enabling rapid iteration, small-batch production, and reduced time to market — without the expense or lead time of tooling.

The broad material palette — from standard nylons to filled composites, flexible elastomers, and specialty castable powders — makes SLS a highly versatile technology, suited to prototyping, functional testing, small-series production, custom parts, and applications across industries (automotive, aerospace, consumer goods, medical, tooling, etc.).