Scope: "Tape" = pressure-sensitive (and gummed) self-adhesive tapes sold as craft/household/utility supplies — washi/decorative, masking/painter's, packing/shipping, duct/cloth/gaffer, double-sided/mounting, and electrical/insulating tape. Excludes glue/adhesives, fasteners, and cutting tools (separate sibling leaves).

Seed: ran scripts/seed.py --category tapes.
- Q1 (existing add-on fields): none found for this leaf yet; nearest neighbor is a generic "material"/"width" style field on general supplies listings, not tape-specific.
- Q2 (what's already asked at cold start): nothing tape-specific; general category/title only. Kept only claims the fetched sources support.

Sources:
[nibal_pvc] https://nibaltape.com/pvc-electrical-tape-guide/ — UL 510 listing tests dielectric strength + flame retardancy; "often 600 V" voltage rating; thermal classes B(rubber)/F(acrylic)/H(silicone) — fetched excerpt confirmed in saved HTML.
[tapespec_0003fr] https://tapespec.co.nz/.../0003FR.html — PVC tape rated "up to 80°C / 600V", UL 510 Standard "Insulating Tape" listing (File E50292), CSA C22.2 — fetched excerpt.
[wiki_electrical_tape] https://en.wikipedia.org/wiki/Electrical_tape — PVC most common backing; UL (Underwriters Laboratories) approval label; color/phase coding — fetched excerpt.
[wiki_duct_tape] https://en.wikipedia.org/wiki/Duct_tape — scrim (cotton/polyester/nylon/rayon/fiberglass) laminated to LDPE; common widths 1.9in/48mm and 2in/51mm; no UL/Prop 65 safety cert on common duct tape; cites ASTM D5486 Type IV woven-cloth backing — fetched excerpt.
[packaginghero_gaffer] https://www.packaginghero.com/blog_gaffers_tape_vs_duct_tape — gaffer = coated cloth, matte, designed for controlled/clean removal; duct = poly-coated cloth/scrim, more residue over time — fetched excerpt.
[exdron_vhb4951] https://exdron.com/Exdron-Pdf/3M-1114487-datasheet.pdf (3M VHB Tape 4951 TDS) — thickness 1.1mm/45mil; short-term temp resistance 149°C/300°F, long-term 93°C/200°F; min application temp 0–15°C by family — fetched, pdftotext.
[archive_vhb_overview] web.archive.org snapshot of 3M VHB Tapes technical data (multimedia.3m.com/.../3m-vhb-tapes.pdf) — corroborates family thickness range and 93°C/200°F long-term figure — fetched, pdftotext.
[tapejungle_guide] https://www.tapejungle.com/news/complete-guide-to-packing-tape/ — packing-tape grades by thickness: economy 1.6–1.8 mil, industrial 2.0–2.6 mil, heavy duty 3.2 mil; standard width 48mm(2in) — fetched excerpt.
[shurtape_ap101] https://www.shurtape.com/products/ap-101/ — structured spec data: 1.6 mil, 25-micron BOPP backing, emulsion acrylic adhesive, tensile 35.0 N/10mm, service temp -29 to 82°C, adhesion 19 oz/in, elongation 150% — fetched (JSON-LD in page).
[shurtape_pc007] https://www.shurtape.com/product/pc-007/ — structured spec data: service temp 4 to 93°C, adhesion to steel 60 oz/in, elongation 20% — fetched (JSON-LD in page), scratch/fix-tapes/shurtape_pc007.html.
[tapecase_2090] https://tapecase.com/products/3m-2090-scotch-blue-painter-s-tape — crepe paper backing, acrylic adhesive, 4.9 mil, 17 oz/in adhesion, 14-day clean removal, UV/sunlight resistant — fetched excerpt.
[customtapes_2090] https://customtapes.com/products/3m-2090-scotchblue-original-painters-tape — corroborates "removes cleanly for up to 14 days...even in direct sunlight" — fetched excerpt.
[washiarts_weights] https://www.washiarts.com/japanese-paper-weights — washi paper GSM bands: ~3.7–9g sheer tissue, 10–25g light/translucent, 25–45g average body, 45–70g opaque — fetched excerpt (washi paper generally, applied here to washi-tape backing feel).
[wiki_washi] https://en.wikipedia.org/wiki/Washi — fiber sources: gampi, mitsumata, paper mulberry (kozo) — fetched excerpt, vocabulary only.
[astm_d6123_listing] https://webstore.ansi.org/standards/astm/astmd6123d6123m972012 (and matching title on astm.org/globalspec/iteh.ai/nimonik, 4 independent listings, same title) — "Standard Specification for Pressure-Sensitive Tape for Light-Duty Packaging and General Purpose Masking", Type I crepe/Type II flat paper. Fetch itself was Cloudflare-blocked; cited for the standard's scope only (no number), corroborated by title matching across 4 independent index sites.

Branches:
- tape_type → washi_decorative: routes to paper_weight_feel only (sentence: washi tape is paper-backed decorative tape, wiki_washi/washiarts).
- tape_type → masking_painters: routes to clean_removal_window + uv_outdoor_rated (sentence: ScotchBlue 2090 is crepe paper/acrylic, 14-day clean release, UV resistant — tapecase/customtapes).
- tape_type → packing_shipping: routes to film_thickness_grade (sentence: BOPP film grades 1.6–3.2 mil map to economy/industrial/heavy-duty — tapejungle/shurtape).
- tape_type → duct_cloth_gaffer: routes to scrim_reinforcement + finish (sentence: cloth/scrim backing, matte vs glossy finish, residue difference — wiki_duct_tape/packaginghero).
- tape_type → double_sided_mounting: routes to foam_or_film_core, bond_thickness, min_application_temperature, temperature_resistance_class (sentence: VHB foam tape thickness/temp specs — exdron/archive).
- tape_type → electrical_insulating: routes to thermal_class + voltage_class (sentence: UL 510, thermal class B/F/H, 600V rating — nibal/tapespec).
- removal_residue → permanent_hold_fine: suppresses clean_removal_window (sentence: permanent-hold tape tolerates residue and has no clean-release deadline to track, the inverse of the needs_clean_release case — packaginghero/tapecase).

Noise (spec-sheet rows seen, not made facets):
- Width/length/roll size — every spec sheet lists these, but they're catalog variety sized to the job (and to the already-type-specific use), not an expertise judgment call; left out as a dedicated facet (same reasoning the skill gives for price).
- Color — meaningful only within specific types (phase-coding for electrical tape, pattern for washi) and is covered in those facets' definitions/vocabulary rather than as its own cross-type facet.
- Water-activated/gummed paper tape — a real packaging-tape form (wiki_adhesive_tape) but rare in craft/retail context next to BOPP packing tape; not given its own branch.
- Brand/price/rating — excluded per rule.

Corrections (2026-10-26):
- Widened bond_thickness range max from 1.1mm to 2.3mm; archive_vhb_overview's own family table lists 4941/4991-family thicknesses up to 0.090in/2.3mm, contradicting the old max.
- Added film_thickness_grade to tape_type's masking_painters branch makes_irrelevant, matching every sibling branch's suppression of this BOPP-specific packing facet.
- Added facet service_temperature_max (°C, 82-93 range) from shurtape_ap101 + new ref shurtape_pc007 — covers the Service Temperature spec row present on both brand sheets, uncovered outside the double-sided branch.
- Added facet adhesion_to_steel (oz/in, 19-60 range) from the same two brand sheets — covers the Adhesion to Stainless Steel row, previously uncovered.
- Added facet elongation_at_break (%, 20-150 range) from the same two brand sheets — covers the Elongation row, previously uncovered.
- Added archive_vhb_overview as a second evidence source for min_application_temperature's 0-15°C range (it independently states 10°C/15°C minimums for other VHB families); single-source range was a rule violation.
- Added ASTM to vocabulary, defined against governing_standard; it was used in mechanism.plain and the governing_standard facet but never glossed, unlike UL 510.
- Renamed temperature_resistance_class's high-heat value to high_heat_121_to_150c_short_term and reworded its definition/backfill_note; archive_vhb_overview shows most VHB families (RP, thicker 4941-family) rated only to 121°C short-term, not the 149°C specific to the 4951 datasheet.
- Added a Branches line for removal_residue → permanent_hold_fine, the only branch leg missing one.