The volcanic-ash powder that soaks up oil, grease, coolant, and water – and leaves grip behind instead of an oil slick.
A forklift driver hits coolant on a wet dock, or a line cook steps in grease behind the fryer, and now you’ve got a comp claim instead of a shift. Falls on the same level cost US employers close to $10 billion a year, and fluids on the floor are a top cause.
We work with restaurant owners, factory managers, and food-plant managers every day, and we’ve seen what a slippery floor costs them: injuries, downtime, failed inspections. This is the straight answer on what Shurfoot does, where it works, and where it doesn’t.
TL;DR
- What it is: a non-slip oil absorbent made from fine volcanic ash that soaks up oil, grease, coolant, blood, and water while leaving grippy footing behind.
- How it works: porous ash pulls liquid into its pores by capillary action, like a dry sponge, and the jagged grit gives your boots something to bite into.
- Why it beats cat litter: clay coats, smears, swells to mud, and throws dust. Shurfoot soaks in, stays gritty, gets into concrete cracks, and sweeps up clean.
- No dust mask: certified free of respirable crystalline silica (NIOSH Method 7500) – unlike most clay and diatomaceous-earth absorbents.
- Food plants: authorized for USDA- and CFIA-inspected meat, poultry, and seafood facilities. A generic bag off Amazon is not.
- Sizes: 3, 6, 25, and 44 lb – the 3 lb runs about $15.90. Get the bigger size if you deal with real spills; a big puddle eats product fast.
The same powder earns its keep on food-plant floors, warehouse docks, and garage concrete.
When to use Shurfoot on your floor
The right size and approach come down to what’s on your floor and where. Here’s how it maps to the most common jobs:
| Your floor | How Shurfoot handles it | Keep in mind |
|---|---|---|
| USDA / CFIA-inspected food plant | Carries the food-facility authorization a generic absorbent doesn’t | Ask to see the letter or NSF listing (below) |
| Warehouse or cold-storage dock | Grips wet and icy patches, won’t turn to mush like clay | Light dusting for traction – don’t heap it on |
| Garage or shop floor | Fine ash gets into concrete pores coarse clay can’t reach | Lift the wet spill first; old stains need a degreaser after |
| Highway or accident-scene spill | Contains fuel, suppresses vapors, not a fire hazard | Spent absorbent from fuel is hazardous waste |
| Indoor ice or a walk-in freezer | Adds traction on thin ice and condensation | For outdoor ice, plain sand is cheaper and better |
Cleaning up spills daily across a plant or warehouse? We also carry WYK Safety Sorbent and WYK Super Sorbent – the same volcanic ash, sold in big bags and shaker cartons instead of small consumer sizes. More on that near the end.
What Shurfoot is, and how it’s different
Shurfoot does two jobs at once: it soaks up a spill and leaves an anti-slip surface behind. That second part is the whole point. Plenty of things soak up oil. Far fewer leave you with grip instead of an oil slick.
The material is natural volcanic ash, a mineral that’s porous and gritty by nature. Volcanic glass forms when molten rock cools too fast to grow crystals, so it comes out as sharp, sponge-like particles.
Those two traits are exactly what you want in a floor absorbent: the pores pull liquid in by capillary action, the way a dry sponge grabs a puddle, and the grit gives you traction – so you go from mopping to sweeping.
Shurfoot is odorless, dustless, and non-toxic, and harmless to floors, shoes, and skin. Here’s the spec:
- Material: natural volcanic ash, a porous, jagged mineral
- Absorbs: oil, grease, coolant, water, blood, fats, and bodily fluids
- Adds: anti-slip traction, including on ice and in standing water
- Fire: non-combustible (the ash melts around 2300°C)
- Not for: strong acids, highly corrosive chemicals, or large hazmat spills
Where to use it, and what it handles
Meat, poultry, and seafood plants
Most Shurfoot buyers come from food plants. It’s authorized for USDA- and CFIA-inspected facilities, and it handles the slick mix of blood, fat, and washdown water behind what one butcher bluntly calls a “slippery meat floor.” A generic ash or coir off Amazon isn’t automatically legal on a regulated food floor – which is why the authorization matters.
Commercial kitchens and food trucks
Grease you don’t have time to mop mid-service. The dustless formula and small 3 lb bag fit tight spaces. One user, K. Wolf, called it ideal for “the inside of a food-truck, where grease ending up on the floor could be a real problem that you just don’t have time to clean up.”
Warehouses, cold-storage docks, and barns
Condensation plus forklift traffic is a slip waiting to happen. A light “salt and pepper” dusting adds grip on wet or icy patches, roughly 1 lb per 100 sq ft. Don’t heap it on – loose granules piled too thick become their own trip hazard. One Wisconsin dairy even uses it “keeping cows from slipping on surface wet from manure and humidity.”
Garages and shop floors
Oil and antifreeze on bare concrete, the classic job. The fine texture is the edge: one reviewer said it “gets into the smaller depressions and cracks of concrete like speedy-dry or cat litter doesn’t,” and another, after years on coarse material, noted “this is almost a powder… it gets down further than the coarse material can.” For a fresh spill, grind it in with your heel or a broom, then sweep – just not on a finished or food floor.
Highway and spill response
Poured around a wreck, volcanic ash contains fuel and hydraulic fluid, suppresses the vapors, and isn’t a fire hazard itself. Road and municipal crews use it for exactly this.
Walk-in freezers and icy indoor floors
Great for indoor ice, not for an outdoor lot – and the people who’ve used it are honest about that split:
- Indoor ice and freezers: in a walk-in, it “would come in very handy.”
- Outdoor ice on a lot or driveway: one reviewer flat-out says “just go buy a bag of plain old sand.”
- Concrete steps in winter: the one outdoor exception – pumice is gentler than rock salt, which corrodes concrete over time.
Bottom line: indoor ice and freezers, yes. A whole icy parking lot, use sand. We’d rather tell you that than sell you the wrong thing.
How to use it: pour, sweep, done
Dump cat litter on a spill and you’re back with a mop anyway, working a nasty paste across the floor. With Shurfoot you pour it, sweep it, and you’re done – no mopping, no mush.
- Pour it over the whole spill. Cover the puddle completely, plus a little past the edges. For traction on a dry-but-slick area, a thin “salt and pepper” dusting is enough (about 1 lb per 100 sq ft).
- Work it in. Push it around with a broom so every bit of liquid makes contact. On porous shop concrete with a fresh spill, grind it in with your heel or a board. Skip the grinding on finished, tiled, or food-plant floors.
- Sweep it up. Once it’s soaked through, sweep the saturated powder into a dustpan and bag it. Dispose of it based on what you cleaned up.
How much to use, and how long to wait
For a wet spill, use enough to bury it – a puddle that shows through means you need more, and skimping is the main reason people think an absorbent “didn’t work.” Most everyday spills are ready to sweep within a few minutes once the powder looks saturated. For a heavy, soaked-in oil stain, leave it down longer – even overnight – so it keeps wicking oil out of the pores, then sweep and reapply if the spot’s still dark.
What not to do
- Don’t heap it on for traction. A thick pile of loose granules becomes its own trip hazard.
- Don’t grind grit into a finished or food floor. Grinding is a bare-concrete trick only.
- Don’t expect it to erase an old stain. A set-in, dried stain needs a degreaser after.
- Don’t rinse a chemical spill down the drain. Fuel, solvents, and chemicals are hazardous waste.
Why it beats cat litter, sand, and clay
Cat litter, sand, and flour all “sort of” work – and all three leave you worse off than a real absorbent.
The difference you can see: clay swells to a slick mud the moment it hits water, while volcanic ash stays dry and gritty and keeps its footing. That’s the whole reason it’s on food-plant and shop floors instead of a bag of litter.
One honest note: there’s no neutral, third-party bake-off ranking these head to head. Most “X times more absorbent” numbers come from the vendor selling the winner.
| Material | Absorbs or Coats? | Dust / Silica | Traction on Wet | Best For |
|---|---|---|---|---|
| Volcanic ash (Shurfoot, WYK) | Soaks in, stays gritty | Low-dust, no respirable silica | Strong (jagged grit) | Food plants, shops, warehouses, ice |
| Clay / cat litter | Mostly coats, swells to mud | Dusty, often contains silica | Poor once saturated | Cheap outdoor cleanup |
| Diatomaceous earth | Soaks well | Dusty; calcined grades carry silica | Medium | Absorbency per pound |
| Coconut coir | Soaks in, encapsulates | Low-dust, silica-free | Low | Oil-on-water, food-friendly |
| Sand | Barely (oil pools around grains) | Gritty | Good dry | Outdoor ice, not floor spills |
We also recommend WYK Safety Sorbent and Super Sorbent
Is it safe and compliant?
Yes – for the floors it’s made for. It’s non-toxic, certified free of respirable crystalline silica, authorized for USDA- and CFIA-inspected food plants, and it helps you meet OSHA’s floor-safety rule.
- OSHA floor rules: the walking-working surfaces rule (29 CFR 1910.22) requires floors kept clean, dry where feasible, and free of hazards. A fast anti-slip absorbent helps you meet that – but OSHA doesn’t “approve” products, so anyone selling an “OSHA-approved” absorbent is stretching it.
- No silica dust: traditional clay and DE absorbents commonly contain crystalline silica, capped by OSHA at 50 µg/m³. Volcanic ash is certified free of it, and its SDS carries no California cancer warning – unlike clay’s.
- Food-plant legal: authorized for USDA- and CFIA-inspected meat, poultry, and seafood facilities as a non-food-contact floor product. Ask to see the NSF listing or the USDA/CFIA letter and confirm the category fits floor use.
- Easy disposal: clean ash is inert; used, it becomes whatever it soaked up. Water, food-grade oil, and grease sweep up as ordinary waste; fuel, solvents, and chemicals must be handled as hazardous waste.
Sizes and pricing
Four sizes – the right one depends on how often you’re cleaning up:
| Size | Approx. price | Best for | Buy Now |
|---|---|---|---|
| 3 lb | ~$15.90 | One to keep handy: food truck, garage, a spot by the fryer | Amazon → |
| 6 lb | ~$28.80 | Light-duty facility spill stations | Amazon → |
| 25 lb | ~$69.00 | Regular use across one busy facility | Amazon → |
| 44 lb | ~$79.00 | Medium-to-high-volume plants and warehouses | Amazon → |
Prices move, so check the live listing before ordering. Reviews run 4.4 out of 5, and the note that comes up most: buy bigger than you think, because a real spill eats product fast.
Get Shurfoot on your floor
Order any size direct, or grab the 3 lb bag on Amazon if that’s where you shop.
Stocking a plant or warehouse? If you go through bags a week, look at WYK Safety Sorbent (on butcher and cold-storage floors since 1967) and WYK Super Sorbent (lighter, soaks up more per pound, so you haul out less waste). Both are certified free of respirable silica. We walk through the choice in our Shurfoot vs WYK comparison.
Frequently asked questions
Does Shurfoot pull oil out of concrete?
Yes. Its fine ash gets down into concrete pores far better than coarse clay or cat litter, which is why buyers say it reaches “the smaller depressions and cracks” the coarse stuff can’t. For a fresh spill, work the powder in, let it draw the oil up, then sweep. For an old, set-in stain, you’ll need a degreaser after – it lifts wet oil but won’t erase a dried stain on its own.
Is it better than cat litter or clay for oil?
Yes, for a floor you have to walk on. Shurfoot soaks the oil in and stays gritty for traction, while clay and cat litter mostly coat the spill, throw dust, and swell to mud on water. It’s also low-dust and free of respirable crystalline silica, which cat litter and diatomaceous earth often aren’t.
Is it safe to use around food?
Yes. It’s authorized for USDA- and CFIA-inspected meat, poultry, and seafood facilities, as a non-food-contact product applied to floors – not to food or food-contact surfaces. If you’re buying for a regulated plant, ask for the NSF listing or the USDA/CFIA letter and confirm the category covers floor use.
Sources: OSHA walking-working surfaces rule (1910.22), OSHA respirable crystalline silica standard (1910.1053), NIOSH review of respirable silica health effects, NIOSH data on workplace falls, USDA FSIS guidance on nonfood compounds, EPA Paint Filter Liquids Test, and USGS on volcanic pumice as an absorbent mineral.
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