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

The niche generates £51K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.0%. Flapen's verdict: Skip it (43/100).

How competitive is the brown silicone sealant niche?

8 brands and 75 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 86% of demand.

What do buyers complain about in brown silicone sealant?

Top complaints mined from reviews: Color, Ease Of Cleaning, Adhesion/Stickiness. The return rate is 0.7%.

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

Listings span £2.21–£10.42; the average listing price is £5.31 (sweet spot $15–$100). The average incumbent carries 1,813 reviews — the moat a new listing must climb.

brown silicone sealant

Skip it

Prices mostly outside the sweet spot ($2.21–$10.42) — this niche doesn't clear our bar today.

Conversion

Incredible17.0%

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,812.93

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+6.0%

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

Competition

Okay66%

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

Brand share

Okay86%

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

Avg price

Bad£5.31

avg listing price — sweet spot $15–$100

Market size

Bad£51K

£51K/yr · 56K searches

Price range

Bad£2.21–£10.42

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

According to Flapen's Amazon United Kingdom niche tracking, brown silicone sealant is a £51K/yr Amazon United Kingdom market (56K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 43/100.

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

brown silicone sealant market data

Units sold / yr: 8K–10K; avg 500–750/product
Revenue / yr: £42K–£53K; units × avg price
Conversion rate: 17.0%
Avg BSR: #260
Page quality: 0%
Prime: 93%
Sponsored: 86%
Out of stock: 5.9%
Avg brand age: 59 months
Avg seller age: 170 days

Competition & brand share

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

Brands

8 rising

Sellers

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

15124%
Sika23%
EVO-STIK16%
FOME FLEX15%
Everbuild8%
Lami-Mate7%
Open — no brand owns it (2 brands, 7%)

Demand

Weekly Amazon search volume, last 17 weeks — +6.0% search growth over the last 90 days.

Open Trend

Top brown silicone sealant search terms

brown silicone sealant22K/yr -5.9%12.0% conv.
brown silicone sealant outdoor8K/yr +105.7%15.8% conv.
brown sealant8K/yr -2.5%11.2% conv.
brown silicone7K/yr -3.4%12.8% conv.
brown sealant waterproof silicone4K/yr +7.8%14.1% conv.
brown caulk5K/yr -18.0%5.2% conv.
dark brown silicone sealant3K/yr -8.3%14.2% conv.

All search terms

Top brown 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 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

151 Frame Sealant - for All UPVC Wood & Metal Door & Window Frames | Permanent & Fast Drying - Suitable for Internal Use Only (Brown 280ml)

151£3.234.3★855 rev

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

FOME FLEX£6.994.5★1,180 rev

Everbuild External Frame Sealant Interior And Exterior Use Permanently Flexible Mould-Resistant Brown 290ml

Sika£2.214.4★1,652 rev

EVO-STIK Multipurpose Silicone Sealant Brown - Waterproof & Mould Resistant - For Interior and Exterior Use

EVO-STIK£5.624.5★1,236 rev

Sika Stixall Extreme Power Sealant and Adhesive Waterproof Brown 290ml

Sika£5.804.6★7,030 rev

Newest

by launch date

Brown Multi Purpose Silicone Sealant 270ml Waterproof Acetoxy Sealant for Bathroom Kitchen Construction & Glazing Flexible Mould Resistant Quick Cure (Pack of 3)

AXpower Inspirational Technology Empowering People£10.2112 rev

4mo ago

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

professional soma fix£6.76861 rev

1y ago

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

FOME FLEX£6.991,180 rev

3y ago

Bond IT LAMI MATE Flexible SEALANT Gap Filler - Dark Oak (1 Dark Oak)

Lami-Mate£4.30438 rev

5y ago

EVO-STIK Frame Silicone Sealant Brown - 290ml - Ideal for Door and Window Frames - Highly Waterproof - Permanently Flexible - Lasts up to 25 Years

EVO-STIK£5.61186 rev

7y ago

What buyers say about brown silicone sealant

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

What buyers love

Value For Money31%

“Good price”

Quality-Overall21%

“Excellent quality”

Advertised Vs Actual Product14%

“Does as advertised”

Ease Of Use10%

“Easy to use”

Color6%

“good colour”

Material Quality3%

“Decent working material before setting”

Efficiency3%

“Does a fine job”

Adhesion/Stickiness1%

“good adhesion”

Water Resistance1%

“very happy with this waterproof silicone sealant”

Ease Of Cleaning1%

“Easy to apply and wipe clean”

What buyers complain about

Color22%

“Totally wrong colour”

Ease Of Cleaning10%

“very difficult to clean off”

Adhesion/Stickiness10%

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

Quality-Overall9%

“Absolute rubbish”

Ease Of Use8%

“hard to use”

Advertised Vs Actual Product4%

“Not as described”

Spray/Flow3%

“Rubbish no nozzle to use”

Instructions/User Manual/Troubleshooting3%

“Did not respond to delivery instructions”

Functionality-Overall3%

“no idea how it would work as a sealant”

Water Resistance3%

“Useless as external sealant washing away in rain after a couple of weeks”

Top return reasons

Color75%

Quality-Overall4%

Compatibility-Overall3%

Advertised Vs Actual Product3%

Functionality-Overall3%

Leak-Proof2%

Material Quality1%

Size-Overall1%

Defective Material/Parts1%