Sinterit Sinterit PA12 Smooth Fresh SLS Powder (2kg)

NOTE: This is the page for FRESH powder. Click here if you're seeking STARTER powder.
To understand the difference, click here.

---

SINTERIT PA12 SMOOTH FRESH 

EXCELLENT RESOLUTION AT A COST-EFFECTIVE PRICE

Sinterit's PA 12 Smooth is a cost-effective nylon 12 powder that delivers excellent surface resolution making it perfect for producing detailed objects and general prototypes.

Key Features of the Sinterit PA12 Smooth:

• Good quality-to-price ratio
• Excellent quality print surface and details
• High chemical resistance
• Ideal for functional prototyping, detailed printouts, and more

---

---

Which Lisa Compact SLS 3D Printers are compatible with Sinterit PA12 Smooth?

---

How do Sinterit's SLS Powders Compare to Each Other?

How do all Sinterit SLS Powders Compare with Each Other?

Material	Surface Quality	Cost-Efficient	Prototyping	Functional
PA12 Smooth	✔️✔️✔️	✔️✔️✔️	✔️	✔️
PA12 Industrial	✔️✔️	✔️	✔️	✔️
PA11 Onyx	✔️	✔️✔️	✔️	✔️
PA11 CF	✔️✔️	✔️	✔️	✔️
PA11 ESD	✔️✔️	✔️	✔️	✔️
PP	✔️	✔️	✔️	✔️
Flexa Grey	✔️✔️	✔️✔️	✔️
Flexa Bright	✔️✔️	✔️✔️	✔️
Flexa Soft	✔️✔️	✔️✔️	✔️

What are the Technical Specifications of Sinterit's PA12 Smooth?

GENERAL
Technology	Powder for Selective Laser Sintering (SLS) 3D Printing
Material Type	Nylon 12
Dedicated for	Lisa, Lisa Pro, Lisa X, NILS 480
Software	Sinterit Studio Basic
Material refreshing ratio¹	22%
Color	Navy Grey
Nitrogen Needed	No
MECHANICAL PROPERTIES
Tensile Strength	32 MPa
Tensile Modulus (Young)	1470 MPa
Flexural Strength	47 MPa
Impact Strength Charpy Method (unnotched)	16 kJ/m2
THERMAL PROPERTIES
Melting Point	185°C
Heat Deflection Temperature (HDT A/B)	68°C / –

¹ Refresh ratio is the amount of refreshing powder required to be mixed after a print with unsintered material.

Information provided within this document shows values for reference and comparison only. Parameters presented in this specification are subject to change without notice. Final part properties may vary based on a printed part design and orientation, material handling as well as printing environment (humidity and temperature). The manufacturer is responsible for validation whether the printout is accurate and fit for the intended purpose.

---

Frequently Asked Questions

WHAT IS A REFRESH RATE?

• In the context of Sinterit products, refresh rate is the ratio of the minimum amount of fresh powder needed in a mixture of material used in an SLS 3D printer. The lower the refresh ratio, the better the cost-efficiency of the material.

HOW DO I REUSE USED PA12 SMOOTH POWDER?

• Reuse leftover PA12 powder on your next print by adding 22% of PA12 Smooth Fresh Powder. By mixing 78% used PA12 Smooth with 22% PA12 Smooth Fresh, you will create a cost-effective, 100% print-ready PA12 Smooth powder.

WHAT IS THE DIFFERENCE BETWEEN “Fresh” POWDER AND “Starter” POWDER?

• Powder Type	Condition	Description
  Starter	Print-Ready	Powder that's ready to print. (i.e. no need to mix used and fresh powder, it's ready to be poured into the machine and start printing)
  Fresh	Fresh	Powder that's for refreshing the powder. Mixing this with Used Powder will turn it into Print-Ready.
  	Used	Powder leftover from printing, present in overflow bin or remaining after printout cleaning.

WHEN DO I NEED "Starter" (AKA "Print-Ready") POWDER?

• Print-Ready powder is intended to be used only for the first print in a new Sinterit SLS 3D printer. After that first print, you'll refresh the used powder with "Fresh" Powder each time you print. You'll only need additional Print Ready powder if you're starting an entirely new print using ONLY "Starter" powder. Note that not all types of materials have "Starter" versions because not all types of materials require it.

CAN I USE "Fresh" POWDER INSTEAD OF "Starter" POWDER TO START PRINTING?

• We recommend starting your first print with a "Starter" powder if a version is available. If there is no "Starter" version available for a particular material, that means you can start with "Fresh" powder for printing.
  • Printing with purely "Fresh" instead of "Starter" powder (if available) is not economically optimal, but yes, it's technically possible.

HOW DO I MIX "Used" and "Fresh" POWDER?

• Powder Handling Stations or a Powder Sieve can help mix used and fresh powders.
  • The amount of needed fresh powder is automatically calculated by the software and shown on the printer screen after the print job is finished. Just add shown amount of material into the mixing cycle of used material and you can start your next job with refreshed material.

HOW SHOULD I STORE THE PRINTING POWDER?

• Store the powder at room conditions ( ~23°C and 50% humidity – the lower humidity the better)
• Always store the material in a sealed dry box/container.
• Do not leave the container open.
• Clean the machine directly after printing and store the material immediately after removing the print cake.
• Do not let the powder stay in the printer for more than a couple hours.
• Put a few silicone absorbers in the container (but don’t add them to the printer)

DO I NEED AN ATEX VACUUM CLEANER TO CLEAN POWDER?

• Yes. SLS polyamide powder used for 3D printing is considered particulate matter because of its size. Polyamide powder particles are generally 40 micrometers or smaller. If vacuumed in an ordinary vacuum cleaner, the powder could cause an explosion.

  Such materials are subject to labor regulations on air quality and occupational safety. The procedures call for appropriate maintenance of powder at work. Only certified industrial vacuum cleaners should be used to clean such materials.