black silicone sealant
Skip itPrices mostly outside the sweet spot ($2.53–$10.62) — this niche doesn't clear our bar today.
Returns
Incredible0.6%return rate — above 5% kills the launch gate
Conversion
Incredible13.8%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay£227K£227K/yr · 242K searches
Review moat
Okay2,833.5avg incumbent reviews — the moat a new listing must climb
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Growth
Bad-8.6%90-day search growth — must beat 0% to launch
Avg price
Bad£6.79avg listing price — sweet spot $15–$100
Brand share
Bad95%top-5 brand share — brand-locked demand
Price range
Bad£2.53–£10.62cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, black silicone sealant is a £227K/yr Amazon United Kingdom market (242K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in May. Verdict: Skip it — 43/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
black silicone sealant market data
- Units sold / yr
- 30K–40K
- avg 2,500–3,000/product
- Revenue / yr
- £204K–£272K
- units × avg price
- Conversion rate
- 13.8%
- Avg BSR
- #92
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 89%
- Out of stock
- 9.7%
- Avg brand age
- 40 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
85
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
3%
- Sika50%
- Bond It17%
- Hemway14%
- EVO-STIK10%
- XFasten5%
- ADVANCEDSIL2%
- Open — no brand owns it (2 brands, 3%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.6% search growth over the last 90 days.Peak months: May · busiest ÷ quietest = 2.0×
Top black silicone sealant search terms
- black silicone sealant66K/yr
- sikaflex33K/yr
- black silicone sealant waterproof25K/yr
- black silicone22K/yr
- black sealant waterproof21K/yr
- black sealant17K/yr
- black caulk16K/yr
- silkaflex6K/yr
- black decorators caulk7K/yr
- black mastic sealant waterproof external4K/yr
Top black 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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sika Stixall Extreme Power Sealant and Adhesive Waterproof Black 290ml
Sika£4.424.6★7,030 rev
Bond-It GP200 Contractors Grade LMA General Purpose Acetoxy Silicone Sealant With Fungicide Black 275ml
Bond It£4.434.5★378 rev
Hemway Jet Black Construction Sealant & Adhesive 300ml - 1 Pack
Hemway£8.504.4★3,009 rev
Everbuild General Purpose Silicone Sealant Waterproof Suitable for Interior and Exterior Use Black 280ml
Sika£2.534.5★2,800 rev
EVO-STIK Multipurpose Silicone Sealant Black - Waterproof & Mould Resistant - For Interior and Exterior Use
EVO-STIK£5.264.5★1,236 rev
Newest
by launch date
50ML Black Silicone Sealant Windscreen Sealant High Temperature Silicone Sealant Waterproof Black Sealant for Cars Window Windshield Adhesive Silicone Sealant Black Glue for Car Door Rubber Seals
Yujinpu£4.787 rev
Black Silicone Sealant & Adhesive Waterproof Flexible High Strength Multipurpose Sealant for Bathroom Kitchen Automotive Glass Metal & Outdoor Repairs. 120 ml
ADVANCEDSIL£7.511,121 rev
Black Silicone Sealant - Flexible Silicone Tube for Wood Parquet Bathroom Sink Windows - Multi-Purpose Waterproof (Black 50ml)
professional soma fix£7.07861 rev
Hemway Jet Black Construction Sealant & Adhesive 300ml - 1 Pack
Hemway£8.503,009 rev
Hemway Jet Black Kitchen & Bathroom Sealant & Adhesive 300ml 1 Pack
Hemway£9.623,009 rev
Trending
90-day click momentum50ML Black Silicone Sealant Windscreen Sealant High Temperature Silicone Sealant Waterproof Black Sealant for Cars Window Windshield Adhesive Silicone Sealant Black Glue for Car Door Rubber Seals
Yujinpu£4.784.2★
Hemway Jet Black Construction Sealant & Adhesive 300ml - 1 Pack
Hemway£8.504.4★
Sika Stixall Extreme Power Sealant and Adhesive Waterproof White 290ml
Sika£3.984.6★
Sika Sikaflex EBT+ Adhesive Sealant and Filler Black 300 ml
Sika£6.744.6★
Bond-It GP200 Contractors Grade LMA General Purpose Acetoxy Silicone Sealant With Fungicide Black 275ml
Bond It£4.434.5★
What buyers say about black silicone sealant
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent Product”
“Strong adhesive”
“Easy to Use”
“Great deal”
“As advertised”
“does the job”
“Definitely water-resistant and durable”
“Nice Color”
“Great durability”
“Very good and strong”
What buyers complain about
“Doesnt stick”
“Bad quality control at Sikaflex”
“little bit pricey”
“it was not easy to use at all”
“I expect it to last like other types of this product”
“Does not set”
“It is a bit thicker than the usual silicone”
“have had hard ones in the past”
“No nozzle sent with the tube”
“doesnt do what says on the tin”
Top return reasons
Common questions
- Is black silicone sealant profitable to sell on Amazon United Kingdom?
- The niche generates £227K/yr across 18 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -8.6%. Flapen's verdict: Skip it (43/100).
- How competitive is the black silicone sealant niche?
- 8 brands and 85 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in black silicone sealant?
- Top complaints mined from reviews: Adhesion/Stickiness, Quality-Overall, Value For Money. The return rate is 0.6%.
- When does demand for black silicone sealant peak?
- Demand peaks in May; the busiest month runs 2.0× the quietest.
- What does it cost to enter the black silicone sealant niche?
- Listings span £2.53–£10.62; the average listing price is £6.79 (sweet spot $15–$100). The average incumbent carries 2,834 reviews — the moat a new listing must climb.