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Stain Block

Fail

Prices span $4.40–$15.55, mostly outside the sweet spot, so Stain Block is a Fail.

Flapen Score
40
40 / 100
Ranks 1,848 of 2,225 DIY & Tools niches · −9 vs the category median of 49
Market size
£44K/yr43K searches / yr
90-day growth
-29.4%search demand this quarter
Competition
79%top-5 click share · 10 brands · 73 sellers

Flapen Score

Stain Block against its category

The dotted line is the DIY & Tools average. Past it, Stain Block is stronger. Inside it, weaker.

40Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Stain Block market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Stain Block 43K times last year and spent an estimated £44K. The top 5 brands take 87% of clicks. Flapen scores it 40 out of 100, a Fail.

01 · Demand

An estimated 11.7% of those searches ended in a purchase.

Shoppers searched for this 43K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 11.7% of those searches ended in a purchase. Searches in the last 90 days moved -29.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £44K a year.

Searches, last 12 months
43K
Growth, 90 days vs prior 90
-29.4%
Conversion, latest week
11.7%
Market size, estimated
£44Ka year
Peak month
February1.5× the quietest month
Top search term
stain block23K searches a year

02 · Price

A sale here is worth £8.83.

Listings sell for £8.83 on average, from £4.40 to £15.55. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £8.83 that is £2K to £4K a year per listing.

Average price
£8.83under the $15 to $100 sweet spot
Price range
£4.40–£15.55
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
6K–8K
Units per listing a year
250–500
Revenue per listing a year
£2K–£4K
Returns
0.8%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

69% of listings pay for placement with sponsored ads. 85% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #122 within Adhesives & Sealers. It carries 1,232 reviews at 4.20 stars, so a new listing needs social proof before a better product.

Sponsored listings
69%
Prime listings
85%
Out of stock, average day
0.0%
Average rank
#122in Adhesives & Sealers
Average rating
4.20 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,232per listing
Listings tracked
13

04 · Newcomers

1 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 82 months on average, so the names here are established.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
82 months

Products

Top Stain Block products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 79% of clicks. A locked shelf that new listings rarely crack.

£0£4K£9K£13K£18K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

10 rising

Sellers

73

Est. top-5 brand share

87%

Top 20: 100%

Est. top-5 click share

79%

Top 20: 100%

Open market

7%

  • Everbuild27%
  • Polar Specialist Coatings22%
  • Pro-Kleen22%
  • RUSTINS11%
  • Bartoline6%
  • Zinsser5%
  • Open — no brand owns it (4 brands, 7%)

Demand

Stain Block search demand

Weekly searches over the year, seasonality beneath. Pick a range.

1K750Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Search terms

Top Stain Block search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • stain block23K/yr
  • stain blocker spray16K/yr
  • stain block spray4K/yr

Reviews and returns

What reviews say buyers love and hate about Stain Block

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Advertised Vs Actual Product”
14%of negative reviews mention “Paint Quality”
0.8%of orders come back
“Stain cover Paint”
A buyer, on “Paint Quality”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

16 topics

NegativePositive

FAQ

Common Stain Block questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data