Pro PCTG, Fire Engine Red, 1.75 mm
3D-Fuel Pro PCTG is like PETG, but better in key ways. It’s up to 30x tougher than PETG, with enhanced chemical resistance and even greater clarity, while maintaining the easy, open-air print experience you expect. Lower moisture absorption means you can print without an enclosure and still achieve consistent results. The bold Fire Engine Red color makes every part pop, whether you’re building protective housings, drone components, or wearable devices.
Why customers choose Pro PCTG
- High toughness: CHDM-based molecular structure increases flexibility and impact resistance, helping parts absorb shocks without cracking.
- Improved inter-layer bonding: Stronger layer adhesion reduces weak points where impact forces might cause failure.
- Excellent chemical resistance: better performance against a range of chemicals than PETG, extending the life of parts in challenging environments.
- Lower moisture absorption: prints reliably with minimal drying or enclosure needs, preserving print quality and surface finish.
Printing & compatibility
- Diameter: 1.75 mm for dependable extrusion compatibility across most desktop printers.
- Prints like PETG, but with enhanced toughness and durability for functional parts and enclosures.
- Ideal for multi-color printing systems like the Bambu Lab AMS; print profiles for Pro PCTG on the Bambu Lab printers are available.
- AMS compatibility: 3D-Fuel uses AMS-compliant spools. Some colors may ship on an older spool type; these remain AMS-compatible but you may need to leave the lid open a few millimeters during printing.
Chemical resistance and durability
Pro PCTG offers superior resistance to common chemicals compared with PETG. At a glance:
- Alcohols (IPA, ethanol, methanol): resists prolonged exposure without degrading or cracking — CRR 1.8.
- Hydrocarbons (hexane, heptane, gasoline, mineral spirits): better resistance to hydrocarbon-based solvents — CRR 2.0.
- Acids (acetic acid, citric acid, phosphoric acid): maintains structural integrity in mild to moderately concentrated acids — CRR 1.4.
- Bases (sodium hydroxide, potassium hydroxide, ammonium hydroxide): better resistance to strong alkalis — CRR 1.33.
- Cleaning agents (bleach, industrial cleaners, detergents): withstands harsh cleaning solutions without discoloration or damage — CRR 1.5.
- Oils and lubricants (engine oils, hydraulic fluids): resists degradation from prolonged exposure — CRR 1.6.
- Ketones (acetone, MEK): performs slightly better in low-concentration ketone environments — CRR 1.2.
These practical advantages translate to longer-lasting housings, safer hinges, and more reliable components in everyday use.
Ideal use cases
- Protective electronic tool housings and rugged enclosures.
- Drone parts, propeller guards, and other high-impact components.
- Flexible clips, living hinges, and snap-fits that benefit from durable toughness.
- Impact-resistant containers or enclosures designed for challenging environments.
For quick reference, you can access additional technical resources for Pro PCTG where needed, including print profiles and material data, to ensure you get the best results from your setup.
| Chemical Type |
Examples |
PCTG Advantage |
PETG Limitation |
Comparison (CRR) |
| Alcohols |
Isopropyl alcohol (IPA), ethanol, methanol |
Resists prolonged exposure without degrading or cracking. |
Degrades or stress cracks with high alcohol concentrations over time. |
1.8 |
| Hydrocarbons |
Hexane, heptane, gasoline, mineral spirits |
Better resistance to hydrocarbon-based solvents. |
Softens or weakens when exposed to hydrocarbons. |
2.0 |
| Acids |
Acetic acid, citric acid, phosphoric acid |
Maintains structural integrity in mild to moderately concentrated acids. |
Degrades faster in acidic environments at higher concentrations. |
1.4 |
| Bases (Alkalis) |
Sodium hydroxide, potassium hydroxide, ammonium hydroxide |
Better resistance to strong alkalis. |
May crack or degrade when exposed to strong bases. |
1.33 |
| Cleaning Agents |
Bleach (sodium hypochlorite), industrial degreasers, detergent solutions |
Withstands harsh cleaning agents without discoloration or damage. |
Discolors, cracks, or loses properties with harsh cleaning agents over time. |
1.5 |
| Oils and Lubricants |
Engine oils, hydraulic fluids, cutting oils |
Resists degradation from prolonged exposure to oils. |
Absorbs oils over time, potentially leading to swelling or weakening. |
1.6 |
| Ketones |
Acetone, methyl ethyl ketone (MEK) |
Performs slightly better in low-concentration ketones. |
Softens or dissolves more readily in ketone-rich environments. |
1.2 |
| Color Name |
Display |
Hex Code |
Closest Pantone®
|
| Natural |
|
Clear |
Clear |
| Brightest White |
|
#EBECEA |
P 179-1 U |
| Snow White |
|
#F2F2ED |
P 1-1 C |
| Desert Tan |
|
#C1AC98 |
15-1309 TPG |
| Flat Dark Earth |
|
#977B6C |
4257 CP |
| Chocolate Brown |
|
#58413B |
P 67-16 C |
| Bubblegum Pink |
|
#EAAAB6 |
4064 UP |
| Grape Purple |
|
#5E528F |
7679 CP |
| Cobalt Blue |
|
#0C3681 |
2736 CP |
| Ocean Blue |
|
#0069A4 |
2935 CP |
| Olive Green |
|
#545746 |
176-15 C |
| Grass Green |
|
#4D9D5A |
P 139-8 U |
| LulzBot Green |
|
#C8CB18 |
14-0443 TPG |
| Daffodil Yellow |
|
#FFC02C |
109 UP |
| Tangerine Orange |
|
#EF744C |
16-1349 TPG |
| Fire Engine Red |
|
#C73229 |
P 52-16 C |
| Iron Red |
|
#8A292A |
P 54-8 C |
| Metallic Copper |
|
#894D3F |
7601 CP |
| Metallic Gold |
|
#C58F4C |
16-0950 TPG |
| Metallic Silver |
|
#7D8081 |
Cool Gray 11 U |
| Industrial Gray |
|
#858B8D |
Cool Gray 10 U |
| Charcoal Gray |
|
#4D545A |
296 UP |
| Midnight Black |
|
#353535 |
19-4006 TPG |
| Fluorescent Orange |
|
#EA7A68 |
P 45-5 U |
Shipping Policy
Effective Date: 11/18/2025
Last Updated: 3/3/2026
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502 W 7th St ste 100, Erie, PA 16502
Hobby Tech Supply is a trade name (DBA) owned and operated by Ashrei Ventures LLC, a Pennsylvania limited liability company.