If this angle gets too large or your resharpening service is careless about its control, you must always search for the best clearance angle setting on your microtome. Hopefully it will occur within your range of adjustment. The included angle of your knife is important in controlling compression of your sections and durability of the edge. DDK can help recommend the proper angle for your application. Should your application change, DDK can change the included angle of your knife for the same price as a regular resharpening.
Epoxy joints are typically subject to cracking with shear, an impact that is sideways on the joint.
Subjecting your knife to cold temperatures only makes the joint more brittle. This type of failure is common when a knife is dropped, not unusual during shipment. DDK repairs epoxy joints by carefully scraping away any remaining epoxy residue and cleaning the two surfaces thoroughly. Our own formulation of epoxy is then applied to both surfaces. The surfaces are joined with a sliding motion carefully eliminating any bubbles or voids and checking the angular alignment of the two parts.