Cardstock (250–400 g/m²)
Frequently asked questions
Can Cardstock (250–400 g/m²) be laser cut?
Yes: Cardstock (250–400 g/m²) can be laser cut.
Can Cardstock (250–400 g/m²) be CNC machined?
No: Cardstock (250–400 g/m²) is not suitable for CNC milling.
Is Cardstock (250–400 g/m²) food safe?
Yes, Cardstock (250–400 g/m²) is food safe even in its raw state.
Physical properties
| Moisture absorption | High |
|---|
Laser processing
Fumes of purely cellulosic plant origin. Burnt paper smell, non-toxic. Standard extraction is sufficient. Be careful with coated, plasticised, or glossy cardstock: the coating polymers may generate additional fumes — check the technical sheet.
CO₂: CO2 laser cutting is excellent. Cardstock requires slightly higher power compared to common paper (8–15W at medium speed). Engraving produces very sharp, depth-adjustable greys. Excellent results for packaging, architectural models, cards, and decorations. Air assist is essential to prevent burns.
Diode: Good results with a 5W+ diode laser. Coloured cardstock responds well; white requires more careful power calibration.
Fiber: Not applicable.
CNC / milling processing
Not workable with CNC and traditional milling bits: it would tear. Mechanical cutting via die-cutters or blade cutters.
Plotter and thermoforming
Excellent plotter workability with standard or deep blades depending on thickness. Thick cardstock (400 g/m²) requires double passes or specific deep blades.
Post-processing
Sanding: Can be lightly sanded on cut edges with extra-fine sandpaper to refine architectural models.
Gluing: Excellent bonding with PVA glue, hot glue, double-sided tape, or glue stick. The thickness of cardstock allows solid structural joints for interlocking 3D models.
Over time: Yellows from oxidation over time if not acid-free. Sensitive to moisture: it warps and loses rigidity. Store in dry environments away from direct light to maximize lifespan.
Common defects
- Warping from moisture absorption, especially in boards printed with water-based inks
- Browned edges if laser power exceeds what is needed
- Delamination of internal layers in multi-ply boards when exposed to moisture
Safety
Highly flammable like all cellulosic materials. Air assist is essential to prevent embers during laser processing. Never leave unattended.
Availability and formats
Commercial formats: A4/A3/SRA3 sheets, board on rolls, pre-printed sheets for packaging
Related materials
Sources
- ISO 9706 — Paper permanence and durability requirements
- Manuali operativi FabLab per modellismo architetturale e packaging laser
Information on compatibility, processing parameters and safety is purely indicative. MakerSpecs accepts no liability for damage to persons or property arising from the use of this data. Always check the safety rules and the manufacturer's official manuals before carrying out any processing.