Visual models
Prioritize shape, colour and surface when a part mainly communicates a concept.
Choose properties before material names
Materials for 3D printing
A practical guide to common thermoplastics and resins for prototypes, functional parts and outdoor use.
- FDM
- Thermoplastics for broad functionality
- SLA
- Resins for detail and specialist properties
- Key factors
- Loads and operating conditions
Material choice affects strength, flexibility, heat resistance, surface finish and cost. No material is best for every job. We start with the part's loads and environment, then balance properties against geometry, process and budget.
Start with what the part must withstand
Functional components
Balance stiffness, toughness, wear and fasteners against expected loading.
Exposed environments
Account for heat, UV, moisture and chemicals before choosing material.
Material data is only part of the result
Printed-part properties also depend on orientation, layer bonding, wall thickness and infill. A strong raw material does not automatically make a strong component.
Tell us which qualities are critical and which compromises are possible. We can then compare a few relevant options rather than choosing from a long list of names.
- State highest and lowest operating temperatures
- Describe UV, moisture and chemical exposure
- Prioritize stiffness, toughness, flexibility or finish
Common material overview
This is a starting guide. The exact material and grade are confirmed after reviewing project requirements.
| Material | Strengths | Limitations | Typical uses |
|---|---|---|---|
| PLA | Rigid, straightforward to print, clean finish | Limited heat and impact resistance | Concept models and visual prototypes |
| PETG | Tough, practical and relatively moisture resistant | Can be softer and show stringing | Housings, holders and functional parts |
| ASA | UV and weather resistant | Needs a more controlled print process | Outdoor parts, brackets and guards |
| Flexible TPU | Elastic and impact resistant | Dimensions and finish vary with hardness and geometry | Feet, covers, seals and grips |
| Standard resin | Fine detail and smooth surfaces | Can be more brittle than thermoplastics | Visual models and detailed prototypes |
| Engineering resin | Specialist toughness, stiffness or heat resistance | Properties vary significantly by grade | Small precise functional components |
How we choose a material
- 01
Map the environment
We identify loads, temperature, UV, moisture, chemicals and desired lifespan.
- 02
Prioritize properties
The key requirements are balanced against finish, colour, process and cost.
- 03
Check against geometry
Material and orientation are confirmed against the actual model before production.
Input for a better material recommendation
You do not need to know the material name. Describe the environment and what absolutely must work.
- Loads and movement
- Temperature range
- UV and outdoor exposure
- Moisture or chemicals
- Desired stiffness or flexibility
- Colour and surface requirements
3D printing material questions
Which material is strongest?
There is no universally strongest material. Tension, impact, bending, temperature and build orientation matter in different ways. Describe the load case to compare relevant options.
Which material works outdoors?
ASA is often a good FDM choice because it resists UV and weather. Colour, temperature and mechanical demands should also be considered.
Is PETG better than PLA?
PETG is often tougher and more resistant to heat and moisture. PLA can make a rigid, clean prototype with simpler processing. The better option depends on use.
Are flexible materials available?
Yes. Flexible TPU comes in different hardnesses. Wall thickness and geometry affect perceived flexibility as much as the material name.
Can resin be used for functional parts?
Yes. Engineering resins can prioritize toughness, stiffness or heat resistance, but the appropriate grade depends on environment and lifespan.
Can printed materials contact food?
Food contact requires assessment of material, process, surface porosity, cleaning and applicable rules. It should not be assumed from the raw material name alone.
Explore the right process
Not sure which material fits?
Describe the environment, loads and key properties for a relevant recommendation.
Request a quote