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Waterproof Sealant

Maybe

Returns run at only 0.6% of orders. But demand is soft, at -21.9% this quarter, so Waterproof Sealant is a Maybe.

Flapen Score
52
52 / 100
Top 33% of 2,225 DIY & Tools niches · +3 vs the category median of 49
Market size
£122K/yr180K searches / yr
90-day growth
-21.9%search demand this quarter
Competition
44%top-5 click share · 21 brands · 209 sellers

Flapen Score

Waterproof Sealant against its category

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

52Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Waterproof Sealant market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Waterproof Sealant 180K times last year and spent an estimated £122K. The top 5 brands take 64% of clicks. Demand peaks in Sep. Flapen scores it 52 out of 100, a Maybe.

01 · Demand

7.3% of searches ended in a purchase last week.

Shoppers searched for this 180K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 7.3% of those searches ended in a purchase. Searches in the last 90 days moved -21.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated £122K a year.

Searches, last 12 months
180K
Growth, 90 days vs prior 90
-21.9%
Conversion, latest week
7.3%
Market size, estimated
£122Ka year
Peak month
September2.1× the quietest month
Top search term
waterproof sealant57K searches a year

02 · Price

A sale here is worth £9.31.

Listings sell for £9.31 on average, from £2.57 to £17.33. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 100 to 250 of them. At £9.31 that is £931 to £2K a year per listing.

Average price
£9.31under the $15 to $100 sweet spot
Price range
£2.57–£17.33
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
13K–15K
Units per listing a year
100–250
Revenue per listing a year
£931–£2K
Returns
0.6%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads and reviews.

92% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 4.0% of listings are out of stock. The average listing ranks #108 within Adhesives & Sealers. It carries 2,801 reviews at 4.33 stars, so a new listing needs social proof before a better product.

Sponsored listings
92%
Prime listings
94%
Out of stock, average day
4.0%
Average rank
#108in Adhesives & Sealers
Average rating
4.33 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,801per listing
Listings tracked
36

04 · Newcomers

Amazon counts 3 of last year's 7 launches as successful.

7 products launched here in the last 12 months. Amazon counts 3 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 41 months on average, so the names here are settling in.

Launched, last 12 months
7
Successful launches
3Amazon's first-year sales bar
Average brand age
41 months

Products

Top Waterproof Sealant 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 44% of clicks. Leaders hold, but buyers still shop past them.

£0£5K£10K£15K£20K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

21 falling

Sellers

209

Top-5 brand share

64%

Top 20: 99%

Top-5 click share

44%

Top 20: 83%

Open market

30%

  • Tufinein19%
  • Everbuild13%
  • GORILLA13%
  • Unibond11%
  • EVO-STIK9%
  • Sika6%

Demand

Waterproof Sealant search demand

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

5K3KSpike '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep · busiest ÷ quietest = 2.1×

Search terms

Top Waterproof Sealant search terms shoppers use

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

  • waterproof sealant57K/yr
  • waterproof sealant outdoor16K/yr
  • clear waterproof sealant15K/yr
  • outdoor sealant11K/yr
  • outdoor silicone sealant waterproof8K/yr
  • water sealant11K/yr
  • outdoor sealant waterproof8K/yr
  • floor sealant10K/yr
  • external sealant waterproof5K/yr
  • water proof sealant4K/yr

Reviews and returns

What reviews say buyers love and hate about Waterproof Sealant

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

Complain

Adhesion/Stickiness14%−0.09

Poor adhesive

Doesnt stick

Not very sticky

Ease Of Use13%−0.08

Not user friendly

Difficult to use

Difficult to squeeze

Leak-Proof8%

item leaked everywhere

it can start to drip

leak still there

Functionality-Overall7%−0.10

doesnt do what it says it would

Did Not Work

So unusable for the job I want to do

Value For Money5%+0.65

Not worth the price I feel

I wondered why the product was priced suspiciously cheap

A little expensive

Love

Quality-Overall21%+1.52

very pleased with quality to date

Good product great result

Excellent Product

Advertised Vs Actual Product13%+1.29

As advertised

just what you need

As described

Value For Money10%+0.65

Fair price

Decent price

Great value

Ease Of Use10%−0.08

Easy to use

easy to handle

Easy to Apply

Adhesion/Stickiness7%−0.09

Strong and easy to use adhesive

STICKS VERY WELL

Good adhesion

Return

0.6% Return rate 59% Fixable by listing

Color38%█▇▇█▇▆

Not recommend turned yellow after few days

Turns yellow

Turns yellow after a couple weeks and looks awful

Functionality-Overall9%▇██▇▆▇

doesnt do what it says it would

Did Not Work

So unusable for the job I want to do

Adhesion/Stickiness8%▇▅█▅▅▆

Poor adhesive

Doesnt stick

Not very sticky

Size-Overall6%█▄▄█▇▅

Small tube

not fit for purpose in my experience

is tiny

Leak-Proof5%▅▇▅▆▅█

item leaked everywhere

it can start to drip

leak still there

FAQ

Common Waterproof Sealant questions

Answered from the same tracked data.