PLA, PETG, ASA, nylon and carbon-fibre-filled materials solve different engineering problems. Start with stiffness, toughness, temperature, environment, wear, dimensional stability and moisture sensitivity—then choose the printer setup that can control the material.
There is no universal “best” filament. A material that gives a rigid, dimensionally stable fixture may be a poor choice for a snap feature, an outdoor bracket or a part that lives near heat.
| Material family | Engineering strength | Main limitation | Typical use |
|---|---|---|---|
| PLA+ / PLA-ST | Easy, stiff, accurate, rapid iteration | Low heat resistance; creep under sustained load | Concept parts, gauges, light-duty fixtures |
| PETG | Tough, chemically tolerant, accessible | Lower stiffness; can creep | Guards, housings, general functional parts |
| ASA | Weather and UV resistance | Needs better thermal control | Outdoor brackets, covers, vehicle-adjacent parts |
| PETG-CF | Improved stiffness and lower-gloss stable surface | Abrasive; not a substitute for high-temp nylon | Fixtures, equipment parts, structured housings |
| PA-CF / PA12-CF | High stiffness, toughness and wear capability | Moisture sensitive; abrasive; process demanding | Robotics, gears, tooling, higher-duty functional parts |
| TPU | Flexible, resilient, wear resistant | Low stiffness; feed path matters | Bumpers, feet, flexible interfaces, strain relief |
| PETG-ESD | Static-dissipative functional material | Use only where the electrical requirement is understood and verified | Electronics trays, handling aids, fixtures |
These links use eSUN's current UK product pages. Awin Convert-a-Link can convert eligible links into tracked affiliate links; D&L does not rank a material higher because it pays commission.
A tougher PLA-family option for functional prototypes and light-duty fixtures where impact response matters more than with ordinary PLA.
Check eSUN PLA-ST →A practical baseline functional material when you want more toughness and environmental resistance than PLA without nylon-level process demands.
Check eSUN PETG →For weather-exposed engineering parts where UV resistance is a real requirement and an enclosed printing process is available.
Check eSUN ASA+ →Carbon-fibre-filled PETG for stiffer fixtures, machine accessories and structured functional parts without jumping straight to nylon.
Check eSUN PETG-CF →Carbon-fibre-filled nylon where stiffness, wear and functional temperature capability justify tighter moisture and nozzle control.
Check eSUN PA-CF →A PA12-based carbon-fibre material positioned by eSUN for lower moisture uptake than its other nylon families and demanding functional parts.
Check eSUN PA12-CF →Use when the application pushes beyond general PETG-CF territory and the printer, dryer and nozzle system can support a more demanding filled nylon.
Check eSUN PAHT-CF →Potentially useful for electronics handling aids and fixtures where static dissipation is part of the requirement; verify resistance through the printed part and process.
Check eSUN PETG-ESD →A general engineering-flexible option for bumpers, feet, sleeves, strain relief and compliant interfaces.
Check eSUN TPU-95A →Prices and stock change frequently, so D&L intentionally links to the current product page rather than publishing a fixed price.
