overcuring

overcuring

[′ō·vər‚kyu̇r·iŋ]
(chemical engineering)
A condition resulting from vulcanizing longer than necessary to achieve full development of physical strength; causes softness or brittleness and impaired age-resisting quality of the material.
References in periodicals archive ?
High UV intensity from the number of cycles of radiation would increase the risk of overcuring, and consequently of degradation to the cured films.
For the compounds that had received anaerobic overcuring or aging, the change in weight could not be ascertained as specimens remained in the mold during aging, and flash became a complicating factor.
overcuring, warping, or bad trimming) can be shown on a pie chart for each shift or other period.
These include the use of N- nitrosamine-blocking agents such as ascorbates and [alpha]-tocopherol, or a lowering of the addition level of nitrite in order to prevent overcuring with its undesirable consequences.
Overcuring leads to such problems as low "elongation at break" while undercuring yields a low tear resistance.