General Properties & Outdoor Use
Q: Why should I choose ASA over standard PLA or PETG?
A: ASA offers far superior UV and weather resistance compared to PLA or PETG. While other plastics may degrade, yellow, or turn brittle in the sun, ASA remains highly stable. It is also much stronger and can withstand much higher temperatures.
A: ASA offers far superior UV and weather resistance compared to PLA or PETG. While other plastics may degrade, yellow, or turn brittle in the sun, ASA remains highly stable. It is also much stronger and can withstand much higher temperatures.
Q: Can ASA handle being out in the rain or hot car?
A: Yes. ASA is waterproof and has an impressive heat deflection temperature of roughly 95°C to 105°C. This makes it perfect for automotive parts, garden equipment, or custom outdoor fixtures.
A: Yes. ASA is waterproof and has an impressive heat deflection temperature of roughly 95°C to 105°C. This makes it perfect for automotive parts, garden equipment, or custom outdoor fixtures.
Q: Is ASA food safe?
A: No. ASA is not food safe. The material is not suitable for medical applications, food storage, or kitchenware.
A: No. ASA is not food safe. The material is not suitable for medical applications, food storage, or kitchenware.
UV & Weather Resistance
Q: How does ASA perform in direct sunlight?
A: ASA is highly UV-stable and maintains its mechanical properties, color, and surface gloss under prolonged sun exposure. Unlike ABS, which tends to yellow, fade, and turn brittle in the sun, ASA replaces butadiene with acrylate rubber, which is inherently immune to UV degradation.
A: ASA is highly UV-stable and maintains its mechanical properties, color, and surface gloss under prolonged sun exposure. Unlike ABS, which tends to yellow, fade, and turn brittle in the sun, ASA replaces butadiene with acrylate rubber, which is inherently immune to UV degradation.
Q: Will ASA fade or crack in outdoor environments?
A: No. It is specifically designed to resist oxidation and harsh weather conditions, including rain, snow, and extreme temperature fluctuations. Its weather resistance is roughly 10 times higher than that of standard ABS.
A: No. It is specifically designed to resist oxidation and harsh weather conditions, including rain, snow, and extreme temperature fluctuations. Its weather resistance is roughly 10 times higher than that of standard ABS.
Q: Does ASA absorb moisture when left outside?
A: ASA has excellent water resistance and absorbs minimal moisture. It will not swell or warp due to humidity.
A: ASA has excellent water resistance and absorbs minimal moisture. It will not swell or warp due to humidity.
Chemical Resistance
Q: What common chemicals are safe for ASA?
A: ASA exhibits excellent resistance to a wide variety of substances. It holds up well against:
A: ASA exhibits excellent resistance to a wide variety of substances. It holds up well against:
Water and aqueous salt solutions
Alcohols and diluted acids
Oils, greases, and many lubricants
Weak bases and most detergents
Q: Are there chemicals that will damage ASA?
A: Yes. ASA can be degraded or dissolved by certain concentrated chemicals and solvents. You should avoid exposing it to:
A: Yes. ASA can be degraded or dissolved by certain concentrated chemicals and solvents. You should avoid exposing it to:
Strong concentrated acids (e.g., concentrated sulfuric or nitric acid)
Highly concentrated alkaline bases
Ketones (like acetone or methyl ethyl ketone), as acetone will melt and dissolve the material
Aromatic and chlorinated hydrocarbons (e.g., benzene, toluene, or methylene chloride)