HumiSeal UV40 reportedly won’t crack under thermal cycling. The polyurethane-polyacrylate hybrid, UV-curable polymer structure coating is said to have low viscosity. Said to be physically flexible, particularly in response to thermal cycling duress. Has reported low solvents (less than 3% content); meets all ISO 14001 and major health and safety and hazardous chemical regulatory requirements.
 
HumiSeal, www.humiseal.com