PMMA is more impact-resistant than glass but less impact-resistant than polycarbonate. While it can handle moderate impacts without breaking, it may crack under high stress or sudden force. For applications requiring extreme toughness, such as protective shields or safety barriers, polycarbonate is superior. However, when clarity and scratch resistance are the priority, PMMA is the better choice. 

Yes, PMMA is naturally UV-resistant and does not yellow easily in sunlight. Its excellent weathering performance makes it suitable for outdoor signs, lighting covers, windows, and architectural installations. With proper coatings, PMMA can maintain clarity and durability for many years even in harsh outdoor conditions. 

PMMA is more scratch-resistant than many transparent plastics but can still develop fine scratches from abrasion. The good news is that light scratches can often be removed through polishing, sanding, or buffing. XC Machining offers polishing services to restore PMMA components to their original clarity when needed. 

Yes, PMMA is biocompatible, chemically stable, and resistant to sterilization chemicals, making it suitable for medical devices, diagnostic windows, cuvettes, and laboratory components. Its high clarity allows easy visual inspection of fluids or samples, which is essential in clinical and research environments. 

PMMA can be bonded using solvent-based adhesives, UV-curable glues, or mechanical fastening. However, some aggressive solvents may cause stress cracking or crazing if applied incorrectly. XC Machining provides guidance on the safest adhesives and assembly techniques to maintain clarity, strength, and part stability.