eSUN PETG-Matte Concrete Grey 1.75mm 1Kg 3D Printer Filament Price in Sri Lanka

The eSUN PETG-Matte Concrete Grey 1.75mm 1Kg 3D Printer Filament is an engineering-grade thermoplastic polyester filament formulated to combine the mechanical resilience, thermal endurance, and chemical inertness of standard PETG with an ultra-smooth, non-glare diffuse matte surface finish. Engineered with specialized micro-matting and light-scattering additives, it eliminates specular reflections and the plastic sheen typical of standard gloss PETG, yielding a modern, stone-like aesthetic with minimal visible layer lines. Spooled onto an eco-friendly recyclable cardboard spool, this 1.75mm filament provides a tight diameter tolerance (±0.03mm), high inter-layer bonding cohesion, low shrinkage, and a neutral, industrial light-grey cement tone suited for architectural modeling, consumer device housings, robotics chassis, and functional prototypes.

Specifications

• Material Formulation: Micro-Textured Glycol-Modified Polyethylene Terephthalate (PETG-Matte)
• Filament Color : Matte Concrete Grey
• Filament Diameter: 1.75 mm (±0.03 mm high-precision laser-controlled tolerance)
• Net Material Weight: 1.0 kg (1000 g / ~2.2 lbs net filament mass)
• Density: Approx. 1.25 to 1.27 g/cm³
• Thermal Characteristics:
  • Extrusion / Nozzle Printing Temperature: 220°C to 240°C (Recommended baseline: 230°C to 235°C)
  • Heated Bed Temperature: 70°C to 80°C (Recommended baseline: 75°C)
  • Heat Deflection Temperature (HDT): Approx. 65°C to 68°C (at 0.45 MPa)
  • Glass Transition Temperature (Tg): ~78°C to 80°C
• Mechanical Performance:
  • Tensile Strength: ≥ 40 to 45 MPa
  • Elongation at Break: ≥ 80% to 110% (High ductility with enhanced rigidity compared to standard gloss PETG)
  • Flexural Modulus: ~2200 MPa
  • Izod Notched Impact Strength: Approx. 5.5 to 6.5 kJ/m²
• Printing Speed Compatibility: 40 mm/s to 100 mm/s (Standard kinematics) / Up to 150–200 mm/s on tuned high-speed CoreXY platforms
• Cooling Fan Speed: 30% to 60% (Moderate fan speeds preserve inter-layer tensile strength; higher speeds sharpen bridging details)
• Spool Construction: Recyclable Eco-Friendly Cardboard Spool equipped with filament level monitoring windows
• Spool Dimensions: Approx. 200 mm Outer Diameter × 65 mm Width (Arbor hub bore: ~53 mm)
• Packaging: Vacuum-sealed moisture-barrier bag with silica gel desiccant pouch in corrugated packaging
• Gross Package Weight: Approx. 1.25 kg to 1.30 kg

Features

• Superior Layer Line Camouflage: The matte light-diffusing formulation scatters specular reflections across exterior surfaces, obscuring micro-layer steps and seam lines for a smooth, mold-like visual texture.
• Non-Glossy Tactile Finish: Delivers a clean, dry-touch surface that resists fingerprint smudges, oil transfer, and glossy wear spots common on handheld parts.
• Reduced Stringing Tendency: Specialized formulation exhibits a slightly lower melt elasticity than ultra-glossy PETG, helping reduce stringing, nozzle weeping, and fine wisps across travel moves.
• Interlayer Adhesion & Durability: Maintains PETG's characteristic thermal fusion across layer boundaries, resisting shear delamination under mechanical and cyclic stress.
• Chemical, Oil & UV Resistance: Withstands dilute acids, cleaning alcohols, grease, and direct outdoor sunlight without rapid chalking or UV degradation.
• Low Warping Behavior: Low coefficient of thermal expansion facilitates flat, stable printing on both enclosed machines and open-frame printers without aggressive corner lifting.

Common Applications

• Architectural Dioramas & Scale Models: Miniature concrete pillars, structural mockups, civil engineering layouts, and terrain dioramas requiring a realistic cement appearance without painting.
• Consumer Electronics & Wearables: High-finish enclosures, IoT sensor housings, remote cases, and handheld instruments requiring an anti-glare, premium aesthetic.
• Robotics & Drone Platforms: Non-reflective chassis plates, camera mounting gimbals, motor brackets, and protective covers.
• Industrial Jigs & Shop Fixtures: Low-reflection inspection fixtures, optical alignment brackets, and machine tool shrouds.
• Custom Test Instrumentation: Professional front panels, benchtop tester enclosures, and modular rack mount brackets.

Usage Tips

• Bed Adhesion & Plate Protection (CRITICAL):
  • Do NOT print directly on bare, smooth PEI or plain glass plates without a release barrier. PETG chemistry can over-adhere to smooth surfaces, potentially lifting the PEI film or tearing glass chunks during part removal.
  • Use a Textured Powder-Coated PEI flex sheet or apply a thin, even coat of PVP glue stick or Magigoo as a sacrificial interface.
  • Allow the bed to cool down below 35°C before attempting removal; thermal contraction will naturally break the bond.
• Temperature Management for Matte Texture:
  • Print temperature directly affects the finish: Lower temperatures (220°C–230°C) enhance the flat, diffuse matte look, while higher temperatures (≥ 245°C) increase melt sheen and reduce the matte effect.
  • Run a small temperature tower to determine the ideal balance between matte texture and inter-layer bond strength for your specific hotend.
• Z-Offset Calibration:
  • Avoid over-squishing the first layer. Increase Z-offset by roughly +0.02 mm to +0.03 mm compared to standard PLA bed tramming to prevent molten filament from scraping the nozzle exterior and dropping stray blobs.
• Moisture Sensitivity & Drying:
  • Matte-additive PETG remains hygroscopic. Absorbed atmospheric moisture can lead to surface voids, brittle layers, and fine filament popping at the nozzle.
  • Dry humid spools in an active filament dryer at 60°C to 65°C for 6 to 8 hours, and keep the roll in a sealed desiccant container during extended print jobs.
• Retraction Configuration:
  • Direct-drive extruders: 0.8 mm to 1.2 mm at 35–45 mm/s.
  • Bowden systems: 3.5 mm to 5.0 mm at 40–50 mm/s.
  • Enable "Wipe while retracting" and keep "Avoid Crossing Perimeters" active to route nozzle travel moves inside internal infill boundaries.