---
title: "Clear Silicone Sealant — £405K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/clear-silicone-sealant"
last_updated: "2026-07-31T08:05:00.770Z"
locale: en
meta:
description: "Niche score 48/100 · £405K/yr market · 356K searches/yr · £7.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · £405K/yr market · 356K searches/yr · £7.14 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Clear Silicone Sealant — £405K/yr Amazon UK Niche (2026) - Flapen"
---
# **clear silicone sealant**
**Skip it**
Soft demand (-9.5% this quarter) — this niche doesn't clear our bar today.
Market size 56Growth 20Conversion 97Competition 23Returns 97Price range 33Avg price 20Brand share 38Review moat 43Quality gap 50
**Conversion**
**Incredible****15.9%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Market size**
**Good****£405K**
£405K/yr · 356K searches
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,234.23**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****£2.57–£20.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-9.5%**
90-day search growth — must beat 0% to launch
**Avg price**
**Bad****£7.14**
avg listing price — sweet spot $15–$100
According to Flapen's Amazon United Kingdom niche tracking, clear silicone sealant is a £405K/yr Amazon United Kingdom market (356K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 48/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **clear silicone sealant market data**
- **Units sold / yr**
- **60K–80K**
- avg 5,000–6,000/product
- **Revenue / yr**
- **£428K–£571K**
- units × avg price
- **Conversion rate**
- **15.9%**
- **Avg BSR**
- **#147**
- **Page quality**
- **0%**
- **Prime**
- **85%**
- **Sponsored**
- **77%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**92**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**12%**
- Everbuild34% - Unibond23% - ADVANCEDSIL11% - Dryzone7% - EVO-STIK7% - 1516% - Open — no brand owns it (3 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.
8K6KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/clear-silicone-sealant/trend)
## **Top clear silicone sealant search terms**
- **clear silicone sealant**113K/yr-13.6%14.3% conv. - **clear silicone sealant waterproof**58K/yr-6.5%14.9% conv. - **clear silicone**34K/yr-6.0%11.2% conv. - **silicone sealant clear**33K/yr-3.9%10.9% conv. - **clear sealant waterproof silicone**31K/yr-3.9%14.4% conv. - **clear sealant**22K/yr-5.2%10.4% conv. - **clear bathroom sealant waterproof**12K/yr-14.1%19.0% conv. - **silicone clear**6K/yr-12.4%10.3% conv. - **clear mastic sealant waterproof**5K/yr-2.7%17.8% conv. - **transparent silicone sealant**4K/yr-1.7%14.0% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/clear-silicone-sealant/search-terms)
## **Top clear 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.
0%10%£40K20%£81K30%£121K40%£162K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Everbuild General Purpose Silicone Sealant Waterproof Suitable for Interior and Exterior Use Clear 280ml**Everbuild**£2.57**4.5★7,522 rev](https://www.amazon.co.uk/dp/B004F1VINS) [2**Unibond Bath & Kitchen Mould-Resistant Transparent Silicone Sealant Silicone-Based Sanitary Sealant Waterproof Caulk 1 x 280ml Cartridge**Unibond**£6.06**4.6★1,962 rev](https://www.amazon.co.uk/dp/B001DZQ0PK) [3**Dryzone Silicone Sealant Clear Anti Mould Waterproof Premium Sanitary-Grade Low VOC Sealant for Bathroom and Kitchen**Dryzone**£6.48**4.5★2,463 rev](https://www.amazon.co.uk/dp/B0C4FTRR19) [4**EVO-STIK Multipurpose Silicone Sealant Clear - Waterproof - Mould Resistant - Lasts Up To 25 Years - Interior and Exterior Use**EVO-STIK**£5.27**4.5★1,236 rev](https://www.amazon.co.uk/dp/B0041WB7G4) [5**Silicone Sealant | Clear Silicone Sealant with Finishing Tool For a Smooth & Professional Finish | Waterproof & Anti-Mould Protection**ADVANCEDSIL**£7.39**4.0★1,121 rev](https://www.amazon.co.uk/dp/B0F9Y5SD4G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**UniBond Kitchen and Bathroom Mould-Resistant Translucent Silicone Sealant Easy No Cut Opening Silicone-Based Sanitary Sealant Waterproof 1 x 280ml Cartridge**Unibond**£6.46**32 rev10mo ago](https://www.amazon.co.uk/dp/B0FRN4CQ1C) [**Silicone Sealant | Clear Silicone Sealant with Finishing Tool For a Smooth & Professional Finish | Waterproof & Anti-Mould Protection**ADVANCEDSIL**£7.39**1,121 rev1y ago](https://www.amazon.co.uk/dp/B0F9Y5SD4G) [**Silicone Sealant Kitchen & Bathroom Silicone Sealant with Finishing Tool for a Smooth & Professional Finish | Waterproof & Anti-Mould Protection - 120g (WHITE 120g)**ADVANCEDSIL**£7.40**1,121 rev1y ago](https://www.amazon.co.uk/dp/B0F9Y5V3JB) [**BlissMart Clear Silicone Sealant Waterproof Strong Clear Glue x 2 Tubes Multipurpose Bathroom Silicon Seal Mold Resistant Silicone Tool Kitchen Toilet Sink Caulking Shower Seal Filler Sealant Tool**BLISSMART**£6.59**305 rev1y ago](https://www.amazon.co.uk/dp/B0DYCHRJNG) [**Clear Silicone Sealant | Multipurpose Waterproof Silicone Sealant CLEAR | Transparent Bathroom & Kitchen silicon sealant x 2 70g Tubes**ABL Supplies**£6.64**858 rev2y ago](https://www.amazon.co.uk/dp/B0CV5RLK7V)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**UniBond Kitchen and Bathroom Mould-Resistant Translucent Silicone Sealant Easy No Cut Opening Silicone-Based Sanitary Sealant Waterproof 1 x 280ml Cartridge**Unibond**£6.46**4.8★**▲ 331%**](https://www.amazon.co.uk/dp/B0FRN4CQ1C) [**Silicone Sealant Kitchen & Bathroom Silicone Sealant with Finishing Tool for a Smooth & Professional Finish | Waterproof & Anti-Mould Protection - 120g (WHITE 120g)**ADVANCEDSIL**£7.40**4.0★**▲ 117%**](https://www.amazon.co.uk/dp/B0F9Y5V3JB) [**EVO-STIK Multipurpose Silicone Sealant Clear - Waterproof - Mould Resistant - Lasts Up To 25 Years - Interior and Exterior Use**EVO-STIK**£5.27**4.5★**▲ 78%**](https://www.amazon.co.uk/dp/B0041WB7G4) [**Sika SikaSeal Sanitary Silicone + (Previously Everflex 500) Waterproof Anti-Fungal Quick Curing Translucent 295ml**Sika**£3.76**4.6★**▲ 38%**](https://www.amazon.co.uk/dp/B001GU6CQ4) [**BlissMart Clear Silicone Sealant Waterproof Strong Clear Glue x 2 Tubes Multipurpose Bathroom Silicon Seal Mold Resistant Silicone Tool Kitchen Toilet Sink Caulking Shower Seal Filler Sealant Tool**BLISSMART**£6.59**4.4★**— 9%**](https://www.amazon.co.uk/dp/B0DYCHRJNG)
**~~View all trending →~~**
## **What buyers say about clear silicone sealant**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“Good product great result”*
**Value For Money**19%
*“Great value”*
**Advertised Vs Actual Product**14%
*“Does as advertised”*
**Ease Of Use**12%
*“Easy to use”*
**Efficiency**5%
*“it does the job”*
**Material Quality**3%
*“Good cheap silicone”*
**Size-Overall**2%
*“This looked ideal size”*
**Water Resistance**2%
*“The waterproof and mould-resistant formula gives peace of mind, especially around sinks and showers where moisture is constant”*
**Adhesion/Stickiness**2%
*“Sticks well”*
**Ease Of Cleaning**1%
*“The clear finish also looks clean”*
### **What buyers complain about **
**Ease Of Use**29%
*“Is hard to open”*
**Thickness**6%
*“Too thick and incredibly hard to squeeze out of tube”*
**Quality-Overall**5%
*“What complete rubbish”*
**Color**5%
*“Not recommend turned yellow after few days”*
**Adhesion/Stickiness**4%
*“just not the best general purpose silicon adhesive/gap filler”*
**Functionality-Overall**4%
*“Doesnt work, dont waste your money”*
**Spray/Flow**4%
*“not a smooth flow”*
**Advertised Vs Actual Product**4%
*“Didn't go as far as it states on the description”*
**Size-Overall**3%
*“not fit for purpose in my experience”*
**Value For Money**3%
*“Expensive for what you get”*
### **Top return reasons **
**Color**57%
**Functionality-Overall**7%
**Size-Overall**5%
**Advertised Vs Actual Product**4%
**Ease Of Use**4%
**Defective Material/Parts**3%
**Adhesion/Stickiness**2%
**Add-Ons/Attachments**2%
**Material Quality**2%
**Leak-Proof**2%
## **Common questions**
- **Is clear silicone sealant profitable to sell on Amazon United Kingdom?**
- The niche generates £405K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -9.5%. Flapen's verdict: Skip it (48/100).
- **How competitive is the clear silicone sealant niche?**
- 9 brands and 92 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in clear silicone sealant?**
- Top complaints mined from reviews: Ease Of Use, Thickness, Quality-Overall. The return rate is 0.7%.
- **When does demand for clear silicone sealant peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the clear silicone sealant niche?**
- Listings span £2.57–£20.99; the average listing price is £7.14 (sweet spot $15–$100). The average incumbent carries 2,234 reviews — the moat a new listing must climb.
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