Is grey silicone sealant profitable to sell on Amazon United Kingdom?

The niche generates £101K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Skip it (44/100).

How competitive is the grey silicone sealant niche?

10 brands and 81 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 75% of demand.

What do buyers complain about in grey silicone sealant?

Top complaints mined from reviews: Color, Adhesion/Stickiness, Smell. The return rate is 0.8%.

When does demand for grey silicone sealant peak?

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

What does it cost to enter the grey silicone sealant niche?

Listings span £2.57–£11.06; the average listing price is £5.75 (sweet spot $15–$100). The average incumbent carries 1,634 reviews — the moat a new listing must climb.

grey silicone sealant

Skip it

Prices mostly outside the sweet spot ($2.57–$11.06) — this niche doesn't clear our bar today.

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Conversion

Great12.0%

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

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay75%

top-5 brand share — brands hold most of the demand

Review moat

Okay1,633.76

avg incumbent reviews — the moat a new listing must climb

Competition

Okay63%

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

Market size

Okay£101K

£101K/yr · 147K searches

Growth

Bad-18.6%

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

Avg price

Bad£5.75

avg listing price — sweet spot $15–$100

Price range

Bad£2.57–£11.06

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

According to Flapen's Amazon United Kingdom niche tracking, grey silicone sealant is a £101K/yr Amazon United Kingdom market (147K searches/yr). The top 5 brands hold 75% of demand. Verdict: Skip it — 44/100.

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

grey silicone sealant market data

Units sold / yr: 15K–20K; avg 500–750/product
Revenue / yr: £86K–£115K; units × avg price
Conversion rate: 12.0%
Avg BSR: #206
Page quality: 0%
Prime: 100%
Sponsored: 76%
Out of stock: 0.0%
Avg brand age: 44 months
Avg seller age: 163 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 flat

Sellers

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

17%

Hemway31%
Unibond14%
Bond It11%
FOME FLEX11%
Sika8%
DEKTON8%
Open — no brand owns it (4 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -18.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top grey silicone sealant search terms

grey silicone sealant47K/yr -15.8%9.8% conv.
light grey silicone sealant23K/yr -7.6%8.1% conv.
grey silicone14K/yr -23.1%9.3% conv.
grey sealant silicone11K/yr -26.8%10.8% conv.
grey sealant10K/yr -25.4%10.2% conv.
grey bathroom sealant7K/yr -31.7%11.1% conv.
grey decorators caulk6K/yr -6.6%3.2% conv.
grey caulk7K/yr -25.5%5.1% conv.
grey silicone sealant bathroom7K/yr -31.6%10.8% conv.
light grey silicone6K/yr -24.9%6.9% conv.

All search terms

Top grey 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 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Hemway Light Grey Construction Sealant & Adhesive 300ml - 1 Pack

Hemway£6.874.4★3,009 rev

Fome Flex Grey Silicone Sealant [310ml] Professional Grade Waterproof & Mould Resistant For Bathroom Kitchen Windows Showers & More Long-Lasting UV-Resistant

FOME FLEX£6.954.5★1,180 rev

Unibond Kitchen & Bathroom Anti-Mould Cartridge Concrete Grey - 274g

Unibond£8.084.6★475 rev

Bond It Grey MULTI-MATE GP SILICONE

Bond It£4.544.4★527 rev

Dekton Kitchen and Bath Sealant (Grey) - Multi-Purpose Acrylic for Indoor Applications UV Resistant Flexible Easy Application Excellent Adhesion to Wet Surfaces & Paintable

DEKTON£2.594.3★67 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

Grey Silicone Sealant - Flexible Silicone Tube for Wood Parquet Bathroom Sink Windows - Multi-Purpose Waterproof (Grey 50ml)

professional soma fix£6.87861 rev

1y ago

Dekton Kitchen and Bath Sealant (Grey) - Multi-Purpose Acrylic for Indoor Applications UV Resistant Flexible Easy Application Excellent Adhesion to Wet Surfaces & Paintable

DEKTON£2.5967 rev

1y ago

Hemway Light Grey Construction Sealant & Adhesive 300ml - 1 Pack

Hemway£6.873,009 rev

2y ago

Hemway Light Grey Kitchen & Bathroom Sealant & Adhesive 300ml 1 Pack

Hemway£11.063,009 rev

2y ago

What buyers say about grey silicone sealant

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

What buyers love

Quality-Overall25%

“Good product great result”

Value For Money17%

“this was cheaper”

Advertised Vs Actual Product15%

“Does as advertised”

Ease Of Use8%

“Easy to use”

Color7%

“Right colour”

Efficiency5%

“Does a fine job”

Material Quality3%

“Well what can I say great quality silicone”

Eco Friendliness2%

“the tube prominently features nice eco-friendly credentials”

Leak-Proof2%

“Sealant”

Adhesion/Stickiness2%

“It sticks well”

What buyers complain about

Color15%

“more blue than grey - i wont be buying anything like it again”

Adhesion/Stickiness9%

“just not the best general purpose silicon adhesive/gap filler”

Smell6%

“Smells a bit”

Dispensing Mechanism5%

“A second gun would not even dispenser this”

Ease Of Use5%

“Very hard to get out of tube”

Advertised Vs Actual Product4%

“Not as advertised”

Natural Resource Wastage3%

“Waste of time”

Quality-Overall3%

“Not worrh it spend a bit more get a better product”

Material Quality3%

“Not as good as a plastic tube unfortunately”

Thickness3%

“Didnt like this at all - comes out too thick”

Top return reasons

Color75%

Advertised Vs Actual Product4%

Functionality-Overall3%

Add-Ons/Attachments2%

Spray/Flow2%

Size-Overall2%

Quality-Overall1%

Defective Material/Parts1%

Leak-Proof1%

Material Quality1%

Common questions

Is grey silicone sealant profitable to sell on Amazon United Kingdom?: The niche generates £101K/yr across 17 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -18.6%. Flapen's verdict: Skip it (44/100).
How competitive is the grey silicone sealant niche?: 10 brands and 81 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 75% of demand.
What do buyers complain about in grey silicone sealant?: Top complaints mined from reviews: Color, Adhesion/Stickiness, Smell. The return rate is 0.8%.
When does demand for grey silicone sealant peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the grey silicone sealant niche?: Listings span £2.57–£11.06; the average listing price is £5.75 (sweet spot $15–$100). The average incumbent carries 1,634 reviews — the moat a new listing must climb.