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slate oil

Skip it

A small market ($27K/yr) — this niche doesn't clear our bar today.

Market size 7Growth 13Conversion 94Competition 20Returns 98Price range 19Avg price 32Brand share 27Review moat 63Quality gap 48

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great11.8%

search→purchase rate — share of searches ending in a sale

Review moat

Good989.33

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.88

avg listing price — sweet spot $15–$100

Brand share

Okay89%

top-5 brand share — brands hold most of the demand

Competition

Bad76%

top-5 click share — a locked-up shelf

Price range

Bad£4.86–£17.33

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Bad-24.6%

90-day search growth — must beat 0% to launch

Market size

Bad£27K

£27K/yr · 23K searches

According to Flapen's Amazon United Kingdom niche tracking, slate oil is a £27K/yr Amazon United Kingdom market (23K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 38/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

slate oil market data

Units sold / yr
3K–4K
avg 250–500/product
Revenue / yr
£30K–£40K
units × avg price
Conversion rate
11.8%
Avg BSR
#231
Page quality
0%
Prime
60%
Sponsored
53%
Out of stock
0.0%
Avg brand age
86 months
Avg seller age
188 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

49

Top-5 brand share

89%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

9%

  • Tableau28%
  • Generic27%
  • Hotspot24%
  • HG6%
  • Brandon Bespoke4%
  • Stovax3%
  • Open — no brand owns it (4 brands, 9%)

Demand

Weekly Amazon search volume, last 31 weeks — -24.6% search growth over the last 90 days.
500300Dec '25Jan '26Mar '26Apr '26May '26Jun '26

Top slate oil search terms

  • slate oil13K/yr
  • slate cleaner5K/yr
  • slate oil for fireplace hearth5K/yr
All search terms

Top slate oil products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%£3K20%£5K30%£8K40%£11K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about slate oil

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall26%

“Good product - does what is described”

Ease Of Use15%

“Easy to use”

Value For Money9%

“Great value”

Advertised Vs Actual Product8%

“Works like a charm”

Ease Of Cleaning6%

“Cleans effectively”

Product Condition4%

“my burner looks brand new”

Smell4%

“Does not smell or give off any whisps of smoke when fire is on”

Rusts/Corrodes3%

“Perfect for protecting carbon steel tools”

Durability3%

“far longer lasting”

Brightness/Shine/Glow3%

“my stoves look much brighter now”

What buyers complain about

Functionality-Overall12%

“No difference after using unfortunately didn't work”

Leak-Proof12%

“Leaked”

Value For Money8%

“expensive”

Adhesion/Stickiness6%

“left a sticky residue, then every bit of fluff got stuck to it”

Product Condition6%

“returned product”

Scratch Resistance6%

“scratch showed up again”

Color6%

“way grey before application”

Instructions/User Manual/Troubleshooting6%

“Not 100% sure as carried instructions as on bottle next day still wiping off black”

Oily/Greasy6%

“Chopping board oil”

De-Grease3%

“so didnt want grease /oil penetration of wood”

Top return reasons

Leak-Proof19%
Functionality-Overall16%
Quality-Overall7%
Color6%
Product Condition6%
Advertised Vs Actual Product5%
Stain Resistance4%
Ease Of Cleaning3%
Material Quality2%
Flammable2%

Common questions

Is slate oil profitable to sell on Amazon United Kingdom?
The niche generates £27K/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -24.6%. Flapen's verdict: Skip it (38/100).
How competitive is the slate oil niche?
10 brands and 49 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 89% of demand.
What do buyers complain about in slate oil?
Top complaints mined from reviews: Functionality-Overall, Leak-Proof, Value For Money. The return rate is 0.4%.
What does it cost to enter the slate oil niche?
Listings span £4.86–£17.33; the average listing price is £9.88 (sweet spot $15–$100). The average incumbent carries 989 reviews — the moat a new listing must climb.