The substrate-material gate is the last screen in the MFS-fit funnel: after a product clears microfluidic-advantage and standardization-fit, is its substrate one that a standardized glass architecture can actually serve?
Scope: 6616 tagged products across 19 material classes.
Polymer (pdms / other_polymer) dominates by volume, but the glass/silicon family — highlighted blue — is where the chemistry (solvent resistance, optics, pressure/temperature) justifies a standardized glass architecture.
Glass/silicon-advantaged share: 4.1% (272 of 6,616 tagged products).
This is the corrected addressable-core estimate: the material-aware restatement of the microfluidics addressable market.
Figures are interactive. Tables marked "live" query the published database (static).