DSS-M.02.02 — Cross-Hatch Scuffing / Sanding Pattern (non-linear)

A non-linear, intersecting lattice of fine lines produced by hand pads, sanding media, or abrasive cloths moving in overlapping, multi-directional passes, leaving a cross-hatched abrasion field. In raking light the field reads as criss-crossed micro-lines; with increasing depth, portions show modeled micro-texture (subtle milky relief) and may include micro-chipping (“chip flanks”) on some strokes. Use VIS terminology for directional patterning, modeled micro-texture, micro-chipping / chip flank, MSRT (surface-catch), and VIS viewing/lighting; classification is appearance-based.

• Overlapping diagonal strokes creating an X-weave or cross-lattice; can concentrate in hand-sized patches that sometimes coalesce into a broader haze.
• Strongest in raking light and oblique sweep; persists after Non-Invasive Reveal (clean & dry).

Surface-catch class (MSRT):

• SC-0 / SC-1 for very fine cross-hatch (non-tactile to slight); SC-2 (clear) where individual strokes exhibit chip flanks or where the field shows tactile lineation. Perform one light, non-marring pass only; MSRT supports classification, not acceptance. Prefer a polymer stylus if a functional coating may be present.

Reveal / lighting / geometry:

• Complete Non-Invasive Reveal (distilled/neutral-pH water; lint-free microfiber; no blades/abrasives/chemicals before evaluation). Inspect at 12 / 36 / 72 in, with normal incidence + oblique sweep (~60°-120°) under raking light, and record distances/angles in-frame.

Location / access:

• Confirm the cue is on the exposed face (not between panes). Use parallax in IGUs-fixed parallax indicates a between-pane condition; record surface numbering (#1-#4 / laminate-internal) on Forms:

Assign CAT by visibility convention + MSRT + edge/morphology (VIS three-part cueing):

• CAT-1 - Faint: SC-0 / SC-1; fine cross-hatch without chip flanks; reads mainly in raking light; does not localize at acceptance geometry.
• CAT-2 - Light: SC-1; clean-edged fine lineation or light micro-texture; limited visibility at standard view.
• CAT-3 - Moderate: Portions of the field show SC-2 (clear) or modeled micro-texture noticeable at standard distance.
• CAT-4 - Severe: SC-2 (clear-to-strong) with rough chip-flank segments, pits/craters, or a broad matte/frosted field distinctly visible at standard and wide-field views.

(Classification is appearance-based; acceptance is handled separately in VIS §6.)

• CAT-1: ~0-0.2 μm (non-tactile micro-field; tone/shine change only).
• CAT-2: ~0.2-1 μm (fine intersecting lineation; minimal edge breakout).
• CAT-3: ~1-5 μm with incipient micro-chipping on some strokes.
• CAT-4: ≥5 μm with rough chip-flank segments and local pits/craters.

(Depths are illustrative for cueing only; VIS classification/acceptance remains appearance-based.)

• vs. Micro-abrasion swirls/pad trails (M.02.01): Swirls present looped/curvilinear trails; cross-hatch shows intersecting straight/oblique passes forming a lattice.
• vs. Burnish/haze field (M.02.04): Burnish reads as broader, non-directional sheen shift; cross-hatch retains discernible stroke geometry under raking.
• vs. Residue films/overspray (R-family): Residues change with Non-Invasive Reveal; true abrasion persists.
• vs. Coating anomalies on worked surface (Co-family): Coating rub/patchiness is area-based, often SC-0/SC-1, and lacks chip flanks; visible anomalies on the worked surface are not permitted at acceptance.
• vs. Between-pane cues (A-family): Internal features show fixed parallax → CAT-5 by location.

• Photo set (VIS): 12 / 36 / 72 in, normal + oblique, include raking; add macro frames showing cross-angle stroke geometry and edge morphology (note presence/absence of chip flanks) and no worked transition edge. Record reveal status, lighting, time; annotate distance/angle in-frame.
• MSRT result: Record SC class (SC-0 / SC-1 / SC-2 as observed); one pass, non-marring; on suspected coated faces, prefer polymer stylus or rely on visual cues.
• Forms: Pane ID; surface numbering (#1-#4 / laminate-internal); worked surface Y/N; functional-coating on worked surface? (Y/N/Unknown); viewing-geometry checklist; photos attached-per VIS Appendix X3.

• Do not “test-sand” or “feather” during inspection-this creates a worked region/transition edge that VIS disallows at acceptance for CAT-0...CAT-4. Keep evaluation non-marring and appearance-only.

• M.02.02 Cross-Hatch Scuffing / Sanding Pattern - Intersecting multi-directional micro-lines at #__ confirmed after Non-Invasive Reveal; MSRT = SC-0/SC-1/SC-2; chip-flanks absent/present (record). Classified CAT-1/2/3/4 by visibility and flank severity per VIS. Photo set at 12/36/72 in (normal + oblique + raking); surface numbering and form fields recorded. Acceptance per VIS §6 (appearance-based).