This page describes the experiments on the chemical resistance of 3D printable FFF thermoplastics. Literature review on the topic is found here.

Experimental

List of chemicals

First, the resistance of 3D printable materials at least to the following solvents, acids and solutions is tested:

• Deionized H2O
• Isopropanol
• Acetone
• Hydrochloric acid (HCl), 37%
• Ammonia (NH3), aqueous solution 25%
• Hydrogen peroxide (H2O2), aqueous solution 30%
• Nitric acid (HNO3)
• Phosphoric acid (H3PO4)
• Acetic acid, concentrated

These chemicals are common chemicals used in many laboratories and many semiconductor processing steps, such as in the cleaning of silicon wafers.

Chemical processes

• Resist strip
• RCA1 and RCA2 wafer cleaning processes, both in RT and 80°C
• Al etch
• Si etch
• HF dip
• BHF dip
• Aqua regia
• Piranha

Tested 3D printing filaments

ABS:

• IC3D ABS, color: Orange, diameter: 2.85 mm

ASA:

• Fillamentum ASA, color: Traffic Black, diameter: 2.85 mm

Co-polyester:

• Colorfabb nGen, color: Lulzbot green, diameter: 2.85 mm
• Colorfabb nGen, color: Red, diameter: 2.85 mm
• Chroma Strand Labs Inova-1800, color: Blue, diameter: 2.85 mm

FEP:

• 3Dogg.com FEP, color: Transparent, diameter: 1.75 mm. Not commercially available

yet.

Nylon:

• Taulman Alloy 910, color: Black, diameter: 2.85 mm

PC:

• Polymaker PC-max, color: Black, diameter: 2.85 mm

PEI:

• 3DXTech Ultem 1010, color: Natural, diameter: 1.75 mm
• 3DXTech Ultem 9085, color: Natural, diameter: 1.75 mm

PETG:

• Octofiber PETG, color: Natural, transparent, diameter: 2.85 mm

PETT:

• Taulman t-glase, color: Green, diameter: 2.85 mm

PLA:

• Polymaker Polylite PLA, color: True Blue, diameter: 2.85 mm

PP:

• Ultimaker PP, color: Natural, diameter: 2.85 mm