Simulant D2

Migration Protocol

Standardized testing procedures dictate that this specific lipid mixture remains in direct contact with the internal face of the test material while the exterior surface is monitored for degradation or spotting. Simulant d2 requires a stable thermal environment, typically thirty degrees Celsius, to prevent phase changes that would invalidate the kinetic measurements. Operators apply the substance with uniform pressure to mimic the physical load exerted by bulk contents on vertical shipping walls.

This application technique isolates the chemical resistance of the coating from the physical damage that might occur during actual transport. Results derived from these observations help converters select functional barriers that prevent fat from compromising the structural integrity or aesthetic quality of outer printed layers.

Substrate Tolerance

Performance thresholds for coated boards depend on the measured permeability of the barrier layer when exposed to these specific hydrocarbon chains. Simulant d2 creates a repeatable stressor that discriminates between high performance barrier films and standard aqueous coatings. Production lines use these findings to establish minimum coat weights that satisfy food safety requirements for extended shelf life.

Any substrate that shows early penetration under these conditions fails the qualification process for oily or fatty content applications. Consistent reliance on a standardized synthetic mixture ensures that barrier claims remain comparable across different manufacturing batches and coating formulations.