Is silicone sealant profitable to sell on Amazon United Kingdom?

The niche generates £909K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -14.6%. Flapen's verdict: Skip it (47/100).

How competitive is the silicone sealant niche?

6 brands and 91 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in silicone sealant?

Top complaints mined from reviews: Ease Of Use, Value For Money, Quality-Overall. The return rate is 0.6%.

When does demand for silicone sealant peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the silicone sealant niche?

Listings span £1.97–£7.40; the average listing price is £5.07 (sweet spot $15–$100). The average incumbent carries 4,931 reviews — the moat a new listing must climb.

silicone sealant

Skip it

Prices mostly outside the sweet spot ($1.97–$7.40) — this niche doesn't clear our bar today.

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Conversion

Incredible12.4%

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

Market size

Great£909K

£909K/yr · 1.4M searches

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Review moat

Bad4,931.08

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-14.6%

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

Avg price

Bad£5.07

avg listing price — sweet spot $15–$100

Brand share

Bad98%

top-5 brand share — brand-locked demand

Price range

Bad£1.97–£7.40

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

According to Flapen's Amazon United Kingdom niche tracking, silicone sealant is a £909K/yr Amazon United Kingdom market (1.4M searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 47/100.

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

silicone sealant market data

Units sold / yr: 200K–250K; avg 12,500–15,000/product
Revenue / yr: £1.0M–£1.3M; units × avg price
Conversion rate: 12.4%
Avg BSR: #66
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 0.0%
Avg brand age: 38 months
Avg seller age: 168 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 falling

Sellers

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

Unibond53%
Sika19%
Everbuild13%
ADVANCEDSIL9%
Dryzone4%
BLISSMART2%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -14.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top silicone sealant search terms

silicone sealant418K/yr -7.0%8.0% conv.
sealant157K/yr -14.9%7.2% conv.
silicone130K/yr -17.6%3.6% conv.
white silicone sealant117K/yr -19.6%15.0% conv.
bathroom sealant119K/yr -21.1%12.2% conv.
bathroom sealant white anti mould63K/yr -11.3%16.5% conv.
bathroom silicone sealant58K/yr -19.9%14.5% conv.
bath sealant64K/yr -24.0%11.6% conv.
shower sealant42K/yr -16.9%11.9% conv.
silicon32K/yr -5.8%3.4% conv.

All search terms

Top silicone sealant 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

UniBond Anti-Mould White Waterproof Mould Protection Long-lasting White Silicone Sealant for Kitchen & Bathroom Powerful Bath Sealant 1 x 274g Cartridge

Unibond£6.704.6★20,589 rev

Everbuild General Purpose Silicone Sealant Waterproof Suitable for Interior and Exterior Use Clear 280ml

Everbuild£2.574.5★7,522 rev

UniBond Re-New White Silicone Sealant for Kitchen & Bath One-Step Bathroom Sealant Renewal Waterproof Kitchen Silicone with Triple Mould Resistance 1 x 80ml

Unibond£5.624.1★2,203 rev

Silicone Sealant Kitchen & Bathroom Silicone Sealant with Finishing Tool for a Smooth & Professional Finish | Waterproof & Anti-Mould Protection - 120g (WHITE 120g)

ADVANCEDSIL£7.404.0★1,121 rev

UniBond Bath & Kitchen Sealant Mould Resistant White Silicone Sealant Ideal for Showers Toilets Tiles Worktops & More Durable & Waterproof Easy Bathroom Sealant 1x104g Pressure Pack

Unibond£5.764.3★3,324 rev

Newest

by launch date

UniBond Kitchen and Bathroom Mould-Resistant White Silicone Sealant Easy No Cut Opening Silicone-Based Sanitary Sealant Waterproof 1 x 280ml Cartridge

Unibond£6.3141 rev

10mo ago

Silicone Sealant Kitchen & Bathroom Silicone Sealant with Finishing Tool for a Smooth & Professional Finish | Waterproof & Anti-Mould Protection - 120g (WHITE 120g)

ADVANCEDSIL£7.401,121 rev

1y ago

BlissMart White Silicone Sealant Waterproof Strong White Glue x 2 Tubes Multipurpose Bathroom Silicon Seal Mold Resistant Silicone Tool Kitchen Toilet Sink Caulking Shower Seal Filler Sealant Tool

BLISSMART£6.61305 rev

1y ago

UniBond Re-New White Silicone Sealant for Kitchen & Bath One-Step Bathroom Sealant Renewal Waterproof Kitchen Silicone with Triple Mould Resistance 1 x 80ml

Unibond£5.622,203 rev

3y ago

Dryzone Silicone Sealant White Anti-Mould - Waterproof Premium Sanitary-Grade Low VOC Sealant for Bathroom and Kitchen

Dryzone£6.232,463 rev

5y ago

What buyers say about silicone sealant

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

What buyers love

Quality-Overall23%

“Good product great result”

Value For Money15%

“Excellent value for money”

Ease Of Use13%

“Easy to use”

Advertised Vs Actual Product13%

“just what you need”

Efficiency5%

“Has done the job ok”

Leak-Proof3%

“Sealing made easy – Sealing your bathrooms”

Material Quality3%

“Very good quality silicone, very good value for money and easy to apply and use, looks very smooth and leaves a perfect finish”

Water Resistance2%

“Excellent Waterproof Finish”

Ease Of Cleaning2%

“It has remained easy to keep clean”

Color2%

“The white colour is clean”

What buyers complain about

Ease Of Use17%

“Difficult to use”

Value For Money8%

“In my opinion its cheaper to buy a tube of the stuff”

Quality-Overall8%

“What complete rubbish”

Functionality-Overall6%

“Cant squeeze the stuff out”

Ease Of Cleaning5%

“even harder to clean up afterwards”

Thickness5%

“almost like thin plastic”

Advertised Vs Actual Product4%

“Didn't go as far as it states on the description”

Size-Overall4%

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

Color3%

“Turned black within a few weeks”

Spray/Flow3%

“Horrible Nozzle Idea”

Top return reasons

Color45%

Functionality-Overall10%

Size-Overall5%

Advertised Vs Actual Product5%

Defective Material/Parts4%

Adhesion/Stickiness3%

Value For Money3%

Quality-Overall3%

Add-Ons/Attachments3%