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Waterproof Sealant Spray

Fail

Demand is soft, at -68.3% this quarter, so Waterproof Sealant Spray is a Fail.

Flapen Score
43
43 / 100
Ranks 1,615 of 2,225 DIY & Tools niches · −6 vs the category median of 49
Market size
£82K/yr106K searches / yr
90-day growth
-68.3%search demand this quarter
Competition
69%top-5 click share · 13 brands · 134 sellers

Flapen Score

Waterproof Sealant Spray against its category

The dotted line is the DIY & Tools average. Past it, Waterproof Sealant Spray is stronger. Inside it, weaker.

43Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Waterproof Sealant Spray market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Waterproof Sealant Spray 106K times last year and spent an estimated £82K. The top 5 brands take 76% of clicks. Flapen scores it 43 out of 100, a Fail.

01 · Demand

8.4% of searches ended in a purchase last week.

Shoppers searched for this 106K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 8.4% of those searches ended in a purchase. Searches in the last 90 days moved -68.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated £82K a year.

Searches, last 12 months
106K
Growth, 90 days vs prior 90
-68.3%
Conversion, latest week
8.4%
Market size, estimated
£82Ka year
Top search term
waterproof sealant spray19K searches a year

02 · Price

A sale here is worth £9.14.

Listings sell for £9.14 on average, from £4.14 to £16.36. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £9.14 that is £2K to £5K a year per listing.

Average price
£9.14under the $15 to $100 sweet spot
Price range
£4.14–£16.36
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–£5K
Returns
0.8%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

84% of listings pay for placement with sponsored ads. 89% ship with Prime. On an average day, 4.8% of listings are out of stock. The average listing ranks #330 within Adhesives & Sealers. It carries 1,928 reviews at 4.06 stars, so a new listing needs social proof before a better product.

Sponsored listings
84%
Prime listings
89%
Out of stock, average day
4.8%
Average rank
#330in Adhesives & Sealers
Average rating
4.06 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,928per listing
Listings tracked
19

04 · Newcomers

Amazon counts 0 of last year's 2 launches as successful.

2 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 47 months on average, so the names here are settling in.

Launched, last 12 months
2
Successful launches
0Amazon's first-year sales bar
Average brand age
47 months

Products

Top Waterproof Sealant Spray products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 69% of clicks. Leaders hold, but buyers still shop past them.

£0£4K£8K£12K£16K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

13 falling

Sellers

134

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

19%

  • GORILLA19%
  • Polar Specialist Coatings19%
  • Pro-Kleen15%
  • 1ABOVE12%
  • JENOLITE11%
  • 1516%

Demand

Waterproof Sealant Spray search demand

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

5K3KHoliday '25Spike '26DecJanFebMarAprMayJunJul

Peak months: Jan, Feb · busiest ÷ quietest = 4.8× · 8 of 12 months tracked

Search terms

Top Waterproof Sealant Spray search terms shoppers use

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

  • waterproof sealant spray19K/yr
  • flex seal spray8K/yr
  • sealant spray6K/yr
  • spray sealant for water leaks7K/yr
  • stop leak spray6K/yr
  • spray sealant5K/yr
  • leak sealer spray5K/yr
  • leak repair waterproof sealant spray23K/yr
  • water sealant spray3K/yr
  • roof sealant spray5K/yr

Reviews and returns

What reviews say buyers love and hate about Waterproof Sealant Spray

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Leak-Proof30%

Leaking pipe

Awful made the leaks worse

Leak

Functionality-Overall21%−0.43

Doesnt do what it says it should do

Hasn't worked fully so far

Did not work

Value For Money5%+0.14

Not cheap,

Not worth the money

Expensive

Size-Overall5%−0.10

not fit for purpose

Tiny pot

Way smaller than expected

Quality-Overall4%+1.22

Absolute rubbish

Very poor quality

Rubbish

Love

Quality-Overall19%+1.22

Excellent product

Good quality

Decent

Advertised Vs Actual Product15%+1.34

As described

Does the job

Does the job as described

Leak-Proof15%

No more leaks

It does stop leaks

Good for small leaks

Ease Of Use9%+0.55

Easy to use

Easy to do

Easy to brush on

Value For Money8%+0.14

Fair price

Good value

Great value

Return

0.8% Return rate 41% Fixable by listing

Leak-Proof19%▄▃▄▃█▂

Leaking pipe

Awful made the leaks worse

Leak

Color19%█▅▂▄▅▃

product is black

Just colourless solvent

Turns yellow

Functionality-Overall15%▆▅█▇▂▇

Doesnt do what it says it should do

Hasn't worked fully so far

Did not work

Size-Overall10%▂▄▆█▅▄

not fit for purpose

Tiny pot

Way smaller than expected

Advertised Vs Actual Product9%▅▇▆▃▃█

Product very misleading and poor

Dodgy advertising

Advertising on this product is extremely misleading

FAQ

Common Waterproof Sealant Spray questions

Answered from the same tracked data.