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

Is brown silicone sealant profitable on Amazon?

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 size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

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: brands, sellers & click 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%)

brown silicone sealant demand & seasonality

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

Open Trend

Top brown silicone sealant search terms shoppers use

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

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 & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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 reviews say buyers love and hate 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%