Filament c-tech PETG transparent 1.75 mm 1 kg spool

c-tech PETG transparent 1.75 mm filament on a 1 kg spool is a clear PETG filament formulated for FDM 3D printers. The material balances mechanical strength and printability, delivering prints with good layer adhesion, impact resistance and optical clarity compared to opaque filaments. The 1.75 mm diameter is intended for standard small-diameter hotends and the 1 kg spool provides a typical supply for prototyping, functional parts and transparent models where both visibility and durability are required.

Advantages

This transparent PETG filament offers consistent extrusion and dimensional stability, reducing issues such as under-extrusion or width variation when used at appropriate printing settings. It provides improved impact resistance and toughness relative to brittle materials, while maintaining easier printing than some engineering plastics. The transparency enables visually clear parts and light transmission for applications that require see-through or translucent properties. The filament is wound on a practical 1 kg spool that fits most consumer FDM printers designed for 1.75 mm filament.

Suitable for

• Functional prototypes requiring clarity and moderate mechanical strength
• Transparent enclosures, covers and light-diffusing components
• Mechanical parts that need impact resistance and good layer bonding
• Decorative or display objects where translucency and surface finish matter

Key specifications

• Material: PETG (glycol-modified polyethylene terephthalate)
• Nominal diameter: 1.75 mm
• Net filament weight: 1 kg
• Color/optical property: transparent / clear
• Form: wound filament on spool compatible with standard 1.75 mm feeders
• Typical properties: good impact resistance, chemical resistance and layer adhesion

How to use

Load the 1.75 mm filament into a compatible FDM 3D printer following the printer manufacturer's filament loading procedure. Use a heated bed and direct or Bowden feed system configured for 1.75 mm filament. Recommended printing temperatures for PETG typically range from about 220–250°C; adjust within that range to optimize flow and clarity for your specific printer and nozzle. A heated build plate set between 60–80°C helps reduce warping and improves first-layer adhesion. Print speeds and cooling should be tuned: moderate speeds and reduced part cooling often improve layer bonding and optical clarity. Ensure the nozzle diameter and retraction settings are appropriate for transparent PETG to minimize stringing while preserving surface finish.

Usage recommendations

Store the filament in a dry environment or sealed container with desiccant to prevent moisture uptake, which can cause bubbles and poor surface quality. When aiming for the best transparency, use a larger nozzle, slower print speed and minimal cooling; post-processing such as careful sanding and polishing or vapor smoothing (if compatible) can further enhance clarity. Test small calibration prints to refine temperature, flow and retraction settings before printing larger or critical parts.