A toolkit is a hypothesis about how to solve recurring problems. Mine is tuned for mineral substrates, biofilms, and reversible interventions. Here’s the gear—and the science—that earns a spot in my bag.
BRUSH SCIENCE: CONTACT PRESSURE & BRISTLE GEOMETRY
Soft, flagged bristles increase surface area and lower contact pressure per filament. Translation: you dislodge soils without cutting the substrate. I carry three sizes for planes, lettering, and ornament. Pro tip: clean paintbrushes are stellar for delicate dusting.
PLASTIC & WOOD: THE SACRIFICIAL LAYER
Scrapers made of HDPE or wood fail before stone does. That’s on purpose. If something has to lose, it won’t be 1860s marble.
PUMP SPRAYER > CUP
A 1–2 gallon pump sprayer delivers a consistent, low‑energy sheet of water—enough to float soils out of pores without driving them deeper. Variable nozzles let you switch between fan and gentle stream for edge rinsing.
NON‑IONIC SURFACTANT (MINI‑LAB)
Why non‑ionic? They don’t bind to calcium or magnesium, so they rinse cleaner on calcite‑bearing stones. Keep dilutions light (think: a teaspoon per gallon). Watch for the moment the water “wets” the surface evenly—that’s your CMC doing its job.
BIOLOGICAL CLEANERS: MODE OF ACTION
D/2‑style products target algal/fungal cells and their extracellular polymers (the “glue” in biofilms). I treat only after mechanical cleaning, then rinse thoroughly. The magic often continues after you leave as weather cycles help slough residues. Patience > pressure washers.
LIGHTING & READING
Raking light (mirror/LED) is the safest “reveal” tool. It creates shadow in incised lettering—no chalk, no creams, no regrets. Photograph the effect; it’s free legibility.
DOCUMENTATION KIT
- Phone/camera with consistent exposure settings
- Spare battery/charger
- Pencil + cards for notes (ink runs, pencil doesn’t)
- Scale/coin for size reference (remove for the glamor shot)
- Microfiber to blot (not rub) for an after‑photo
FIELD ERGONOMICS (YOUR BODY IS A TOOL)
Knee pads, wide‑brim hat, hydration, bug protection, and timed stretch breaks keep you safe. Conservation marathons are lost by sore backs and dehydration.
UPGRADES I LOVE
- Narrow, soft toothbrush‑style scrubbers for lettering cusps
- Collapsible 5‑gallon water cube for back‑of‑car storage
- Small mirror on a clip for hands‑free raking light
