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Pro PCTG vs PETG 3D Filament Chemical Resistance
3D-Fuel Pro PCTG has broader chemical resistance than PETG.
So, what does this mean?
Here are chemical types and examples with a breakdown of PCTG's advantage over PETG. The CRR demonstrates how much more resistant Pro PCTG is relative to PETG. For example, a CRR of 1.5 means that Pro PCTG is ~50% more resilient than PETG.
How would you use the advantages of Pro PCTG in your 3D prints?
| Chemical Type | Examples | PCTG Advantage | PETG Limitation | Comparison (CRR - how comparatively resistant PCTG is vs PETG) |
|---|---|---|---|---|
| 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 |
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