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Window Sealant

Fail

Demand is soft, at -39.9% this quarter, so Window Sealant 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
£64K/yr98K searches / yr
90-day growth
-39.9%search demand this quarter
Competition
66%top-5 click share · 11 brands · 114 sellers

Flapen Score

Window Sealant against its category

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

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

Market

The Window Sealant market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Window Sealant 98K times last year and spent an estimated £64K. The top 5 brands take 81% of clicks. Demand peaks in Jan–Feb–Nov. Flapen scores it 40 out of 100, a Fail.

01 · Demand

10.7% of searches ended in a purchase last week.

Shoppers searched for this 98K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 10.7% of those searches ended in a purchase. Searches in the last 90 days moved -39.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated £64K a year.

Searches, last 12 months
98K
Growth, 90 days vs prior 90
-39.9%
Conversion, latest week
10.7%
Market size, estimated
£64Ka year
Peak month
November2.5× the quietest month
Top search term
window sealant50K searches a year

02 · Price

A sale here is worth £6.11.

Listings sell for £6.11 on average, from £2.57 to £19.15. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 250 to 500 of them. At £6.11 that is £2K to £3K a year per listing.

Average price
£6.11under the $15 to $100 sweet spot
Price range
£2.57–£19.15
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
10K–13K
Units per listing a year
250–500
Revenue per listing a year
£2K–£3K
Returns
0.6%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

79% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 6.6% of listings are out of stock. The average listing ranks #300 within Adhesives & Sealers. It carries 3,187 reviews at 4.40 stars, so a new listing needs social proof before a better product.

Sponsored listings
79%
Prime listings
100%
Out of stock, average day
6.6%
Average rank
#300in Adhesives & Sealers
Average rating
4.40 starsAmazon United Kingdom average 4.36 stars
Average reviews
3,187per listing
Listings tracked
19

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 38 months on average, so the names here are settling in.

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

Products

Top Window 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 66% of clicks. Leaders hold, but buyers still shop past them.

£0£6K£13K£19K£26K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

114

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

13%

  • Unibond43%
  • EVO-STIK15%
  • Everbuild8%
  • 1517%
  • Sika7%
  • Dryzone6%
  • Open — no brand owns it (5 brands, 13%)

Demand

Window Sealant search demand

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

4K3KSpike '24Black Friday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Nov · busiest ÷ quietest = 2.5×

Search terms

Top Window Sealant search terms shoppers use

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

  • window sealant50K/yr
  • window silicone sealant7K/yr
  • frame sealant white5K/yr
  • window frame sealant7K/yr
  • paintable silicone sealant4K/yr
  • window sealant white4K/yr
  • frame sealant4K/yr
  • white silicone sealant for upvc windows3K/yr
  • window sealer5K/yr
  • door sealant3K/yr

Reviews and returns

What reviews say buyers love and hate about Window Sealant

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

Complain

Ease Of Use25%−0.09

difficult to control

Difficult to use

Not user friendly

Thickness8%−0.07

Too thick and incredibly hard to squeeze out of tube

It simply seemed too thick

Good stuff seems a little thicker than usual stuff

Value For Money6%+0.95

Not worth the price I feel

Expensive for what you get

Fairly expensive for the amount of product you get

Color5%−0.02

Turns yellow

is cream rather than white

Not recommend turned yellow after few days

Quality-Overall4%+1.64

What complete rubbish

Rubbish product

was so annoyed at the poor quality of this product that I felt compelled to do so

Love

Quality-Overall23%+1.64

Excellent product

Excellent reliable product

very pleased with quality to date

Value For Money15%+0.95

Decent price

Great value

Great value

Ease Of Use14%−0.09

Easy to use

Easy to work with

Easy to Apply

Advertised Vs Actual Product11%+0.67

just what you need

Does exactly what it promises

As described

Efficiency4%+0.44

Does the job well

just as effective

Works very well

Return

0.6% Return rate 57% Fixable by listing

Color36%█▆▆▆▇▇

Turns yellow

is cream rather than white

Not recommend turned yellow after few days

Functionality-Overall11%▄▇▇█▇▇

Doesnt work, dont waste your money

So unusable for the job I want to do

Completely Ineffective and Very Messy to Use

Size-Overall6%▇▄▃█▆▂

not fit for purpose in my experience

The size of the tube is small compared to other products out there

bit smaller than expected. my fault for not looking at the size

Ease Of Use5%▂▃▆▂▃█

difficult to control

Difficult to use

Not user friendly

Defective Material/Parts5%▄▅▄▃█▇

FAQ

Common Window Sealant questions

Answered from the same tracked data.