Filament ASA gray 1.75 mm 1 kg refill pack BrightSign

BrightSign ASA filament in gray is a 1.75 mm, 1 kg refill pack designed for 3D printing applications that require UV stability, weather resistance and dimensional stability. ASA (acrylonitrile styrene acrylate) is a thermoplastic engineered to withstand prolonged exposure to sunlight and moisture while retaining mechanical properties, making it suitable for functional prototypes, outdoor parts and components exposed to changing environmental conditions.

Advantages

This ASA filament offers high resistance to ultraviolet radiation and outdoor weathering, good impact strength and low warping compared with some other engineering plastics. The 1.75 mm diameter provides consistent feeding in compatible extruders, and the 1 kg refill format is convenient for medium-to-large prints. The gray color gives a neutral appearance suitable for functional parts and prototypes that do not require post-painting.

Suitable for

• Outdoor housings and mounts
• Functional prototypes exposed to sunlight or moisture
• Mechanical components and brackets
• Replacement parts for exterior applications

Key specifications

• Material type: ASA (Acrylonitrile Styrene Acrylate)
• Diameter: 1.75 mm nominal
• Net weight: 1 kg refill pack
• Color: gray
• Recommended use: outdoor and UV-exposed applications

How to use

Load the 1.75 mm filament into a printer that supports this diameter and confirm proper feeder tension to ensure smooth extrusion. Set the hotend temperature according to ASA printing guidelines for your specific printer and nozzle (typical ranges are higher than PLA), and use a heated bed with appropriate adhesion method to reduce warping. Allow printed parts to cool gradually and avoid rapid temperature changes immediately after printing to preserve dimensional stability.

Usage recommendations

For best results, print with an enclosed or semi-enclosed build area when possible, set bed temperature and enclosure temperature to minimize thermal shocks, and consider using a brim or raft for large flat parts. Store the filament in a dry, sealed container or with desiccant to prevent moisture uptake and maintain consistent print quality.