Filament spool, eSun ASA+ 1.75 mm 1 kg — blue

eSun ASA+ 1.75 mm filament on a 1 kg spool in blue is a thermoplastic material designed for FDM/FFF 3D printers that require a 1.75 mm diameter filament. It combines UV and weather resistance with good mechanical strength, making it suitable for parts that will be exposed to outdoor conditions. The material is formulated to reduce warping and provide reliable layer adhesion, enabling the production of functional prototypes, housings, fixtures and enclosure components with stable dimensional performance.

Advantages

ASA+ offers improved resistance to ultraviolet light and atmospheric degradation compared with standard ABS-type materials while maintaining impact strength and stiffness. The filament's 1.75 mm diameter and consistent spool weight contribute to stable extrusion and predictable print results. The blue color provides a finished appearance for visible parts without requiring post-painting for many applications.

Suitable for

• Outdoor enclosures and housings that require UV and weather resistance
• Functional prototypes and mechanical parts under moderate stress
• Fixtures, jigs and mounting components used in production or workshops
• Architectural models and proof-of-concept parts that need color-ready finishes

Key specifications

• Filament type: ASA+ (acrylonitrile styrene acrylate enhanced)
• Diameter: 1.75 mm
• Spool weight: 1 kg
• Color: blue
• Printing technology: FDM / FFF
• Properties: UV resistance, weather resistance, good mechanical strength, reduced warping

How to use

Load the 1.75 mm filament onto a compatible FDM/FFF 3D printer and set the nozzle and bed temperatures according to printer and filament manufacturer guidelines for ASA-type materials. Use a heated build plate and consider an enclosed or draft-free printing environment to minimize warping. Calibrate extrusion multiplier and print speed for reliable layer bonding, and allow printed parts to cool gradually to reduce internal stresses. Post-processing options include sanding, solvent smoothing where appropriate, or painting with compatible primers and coatings.

Usage recommendations

For best results, print ASA+ in an enclosure with a stable ambient temperature, use a heated bed with appropriate adhesion aids (PEI, glue stick or specialized build surfaces), and avoid rapid cooling. Store the filament in a dry environment or vacuum-sealed packaging with desiccant to preserve material properties and prevent moisture-related print defects.