Sunlu PETG Filament Transparent - PETG 1.75 mm for FDM 3D Printers

Sunlu PETG Filament Transparent (1.75 mm) is a PETG spool formulated for FDM 3D printers that combines clarity with mechanical strength. The filament provides good interlayer adhesion and low tendency to warp, enabling predictable printing of transparent or semi-transparent parts that require both visual quality and functional durability.

Advantages

Sunlu PETG offers high impact resistance and long-term dimensional stability, making printed parts resistant to shocks and everyday wear. The material prints with reliable layer bonding and produces prints suitable for both indoor assemblies and some outdoor applications where resistance to moisture and moderate temperatures is needed.

Suitable for

• Functional prototypes and mechanical parts
• Enclosures and housings requiring transparency
• Decorative or cosmetic prints with clear or translucent finish
• Outdoor-use items exposed to moisture (within temperature limits)

When it may not be suitable

PETG is less suitable for applications that require very high heat resistance above its heat deflection temperature (around 68 °C) or for parts that must withstand prolonged exposure to solvents or strong chemicals. For extremely rigid or high-temperature components, alternative engineering plastics may be more appropriate.

Key specifications

• Material: PETG
• Diameter: 1.75 mm
• Color/Transparency: Transparent
• Density: 1.27 g/cm³
• Vicat softening temperature: 68 °C
• Heat deflection temperature: 68 °C
• Melting temperature: 195 °C
• Melt flow rate: 5.3 g/10 min
• Tensile strength: 53 MPa
• Elongation at break: 17.3%
• Flexural strength: 77 MPa
• Flexural modulus: 2226 MPa
• Impact resistance: 2.7 kJ/m

How to use

Load the filament on an FDM 3D printer configured for 1.75 mm material. Recommended printing temperatures typically start around the filament melting point and are adjusted per printer and part geometry; begin testing near typical PETG settings and fine-tune for optimal layer adhesion and surface finish. Use a heated bed and appropriate bed adhesion methods to reduce warping; cooling fan settings may be reduced compared with PLA to maintain layer bonding.

What to consider before purchase

• Verify printer compatibility with 1.75 mm PETG filaments and FDM printing parameters.
• Consider required operating temperature for the final part; PETG softens around 68 °C.
• If optical clarity is critical, test print small samples to confirm transparency and surface finish.
• Plan for post-processing (sanding, polishing) if higher transparency is required.

Usage recommendations

For best results print with a heated bed, controlled cooling, and calibrated extrusion. Allow test prints to adjust temperature and retraction settings to balance clarity, strength, and surface quality when using Sunlu PETG Filament Transparent.