Polymaker ASA Filament: UV-Resistant Black for Outdoor Prints
When your 3D prints need to endure the elements, ASA (Acrylonitrile Styrene Acrylate) is the go-to filament, offering superior UV and weather resistance compared to ABS. This Polymaker ASA filament in black is specifically engineered for functional outdoor use, making it a top choice for parts that face sun, rain, and temperature swings. Before you buy, understand how to get the best results from this material, from print settings to post-processing.
Key Considerations Before Buying
- Print temperature is critical: ASA typically requires a hotend temperature of 240-260°C and a heated bed around 90-100°C. Polymaker recommends these ranges, and many user reviews confirm that dialing in the right temperature is key to avoiding warping and ensuring layer adhesion.
- Enclosure is often necessary: ASA is prone to warping and cracking due to rapid cooling. An enclosed printer or a draft-free environment is highly recommended, especially for larger parts. This is a common theme in user experiences.
- Ventilation matters: Like ABS, ASA emits fumes during printing. It's important to print in a well-ventilated area or use a printer with a carbon filter to minimize exposure to potentially irritating fumes.
- Adhesion aids: To prevent warping, use a build surface like PEI or glass with an adhesive (e.g., Magigoo) or a brim. Polymaker's own adhesive is popular, but many users find hairspray or glue stick works well.
- Post-processing: ASA can be smoothed with acetone vapor for a professional finish, but this requires careful handling. Alternatively, sanding and painting are viable options for a polished look.
What Our Analysts Recommend
For ASA filament, look for consistent diameter tolerance (e.g., ±0.03mm) to ensure smooth extrusion and minimal clogs. Also, check for low moisture absorption—ASA is less hygroscopic than nylon but still benefits from being stored in a dry box. High-quality ASA will have a matte, slightly textured finish after printing, which helps hide later layer lines and provides a non-glossy, professional appearance.
3D Printing Filament Market Context
Market Overview
The 3D printing filament market has expanded rapidly, with ASA emerging as a preferred alternative to ABS for outdoor and automotive applications due to its enhanced UV stability and mechanical strength. Polymaker is a well-regarded brand in this space, known for producing reliable and consistent filaments that meet the demands of both hobbyists and professionals.
Common Issues
Common issues with ASA include warping, poor layer adhesion, and stringing if the filament is not dried properly. Additionally, some users report that ASA prints can be brittle if printed too cold, leading to cracks under stress. These issues are often addressed in user reviews, with many sharing specific settings that work for them.
Quality Indicators
Quality indicators for ASA filament include uniform color (especially black, which can show inconsistencies), consistent diameter, and minimal odor during printing. A reliable brand will provide clear technical datasheets and printing guidelines, which Polymaker does, and their product reviews often highlight successful prints with detailed settings, indicating a trustworthy product.
Review Authenticity Insights
Grade B Interpretation
The Grade B rating and 10.00% estimated fake review percentage suggest that while the majority of reviews are genuine, there is a noticeable subset of potentially incentivized or fabricated reviews. This means you should focus on detailed, balanced reviews that mention specific print settings and outcomes, as these are more likely to be authentic. The high adjusted rating of 4.60/5 still indicates a well-regarded product, but the 10% fake rate warrants a cautious approach.
Trust Recommendation
Based on the analysis, you can trust the overall positive sentiment, but it's wise to read a mix of 4-star and 5-star reviews to get a balanced view. Pay special attention to reviews that include photos of printed parts and discuss troubleshooting, as these are typically from genuine users. Also, consider the verified purchase badge—nearly all reviews have it, which is a good sign.
Tips for Reading Reviews
When reading reviews for this filament, look for mentions of specific printer models and settings (e.g., 'I used a Prusa MK3S at 250°C/100°C bed'). Also, check for reviews that compare ASA to ABS or PETG, as these often provide valuable context. Be wary of overly brief reviews that lack detail or use generic praise, as these may be fake.
Expert Perspective
Polymaker ASA filament in black is a solid choice for users who need durable, UV-resistant parts. The high average rating of 4.89, even after adjusting for a 10% fake review rate to 4.60, indicates strong user satisfaction. The filament's reputation for consistent quality and reliable printing, as noted in many reviews, aligns with Polymaker's standing in the market. However, the need for an enclosure and careful temperature management means it's best suited for intermediate to advanced users.
Purchase Considerations
Before purchasing, consider your printer's capabilities—does it have a heated bed and an enclosure? If not, you might struggle with warping. Also, think about the application: for outdoor use, this filament is excellent, but for indoor decorative prints, a cheaper PLA might suffice. Finally, weigh the cost—ASA is typically more expensive than ABS or PETG, but its durability may justify the price.
Comparing Alternatives
Shoppers should also consider other ASA brands like Prusament or eSUN, and compare them based on price, color options, and user feedback. Additionally, PETG is a viable alternative if you need UV resistance but want an easier print experience.
