Have you looked into clutch assist springs? Or a pedal extender? I don't know if these would solve the problem completely, but they're a cost-effective option. I know you said you've had the clutch replaced 5 years ago, but it sounds like it might need more regular maintenance. General wear and...
IR thermography measures the thermal radiation coming from the gear tooth. You'll be able to measure the temperature while the gears are running as IR therm doesn't require direct contact to read temps.
PA66+GF30 is generally suitable for continuous use at temperatures up to 120-150°C (250-300°F). While PA66+GF30 is generally considered to have good chemical resistance, you’re obviously going to need to test its long-term performance and response to contact with water (of all temperatures). I...