high temperature silicone sealant
Skip itPrices mostly outside the sweet spot ($3.32–$10.66) — this niche doesn't clear our bar today.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Review moat
Good943.7avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Good72%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Avg price
Bad£7.20avg listing price — sweet spot $15–$100
Market size
Bad£47K£47K/yr · 54K searches
Growth
Bad-28.9%90-day search growth — must beat 0% to launch
Price range
Bad£3.32–£10.66cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, high temperature silicone sealant is a £47K/yr Amazon United Kingdom market (54K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 44/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
high temperature silicone sealant market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- £36K–£43K
- units × avg price
- Conversion rate
- 12.2%
- Avg BSR
- #330
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 85%
- Out of stock
- 4.2%
- Avg brand age
- 49 months
- Avg seller age
- 171 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
16 flat
Sellers
79
Top-5 brand share
72%
Top 20: 100%
Top-5 click share
59%
Top 20: 100%
Open market
23%
- VITCAS26%
- Visbella21%
- OB111%
- ADVANCEDSIL8%
- Sika6%
- INNOVAYOU5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -28.9% search growth over the last 90 days.Peak months: Nov, Dec · busiest ÷ quietest = 1.8×
Top high temperature silicone sealant search terms
- high temperature silicone sealant16K/yr
- heat resistant silicone15K/yr
- oven door glue4K/yr
- heat resistant glue for oven door4K/yr
- oven seal glue4K/yr
- heat resistant sealant3K/yr
- high temperature silicone2K/yr
- oven door seal glue3K/yr
- heat resistant silicone sealant3K/yr
Top high temperature 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 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
VITCAS Heat Resistant Silicone - Excellent Adhesion - Glass and Glazed Surfaces - Enamel Ceramics - Impregnated and Painted Wood Plastics - Flexible Sealant - Designed for Joints - Black Finish - 310ml
VITCAS£8.694.6★2,534 rev
Visbella V363 Silicone Oven Glass Door Gasket Seal High Temperature Heat Resistant from -80F to 600F (Black)
Visbella£6.504.5★4,042 rev
OB1 Black HeatProtect Fire Cement 1200C High Temperature Heat Resistant Sealant for Stoves Fireplaces Ovens & Chimneys.
OB1£4.874.4★227 rev
Visbella High Temperature RTV Silicone Gasket Maker Sealed Oil Resistant Waterproof Quick Dry Liquid for Bonding Internal Combustion Steam Turbines Automotive Engine Parts 3.7OZ (BLACK)
Visbella£5.704.6★533 rev
High-Temperature Silicone Sealant Black Oven Door Repair Adhesive Heat Resistant up to 400C (40g)
ADVANCEDSIL£7.634.2★167 rev
Newest
by launch date
Bond It HT30 Heat Resistant Silicone Sealant Black 310ml
Generic£7.692 rev
Loongway Black Silicone Sealant 20ml X 2Pack Suitable for Moisture-Proof Sealing in Mechanical Components Domestic Appliances Electric Heating Systems and Solar Accessories
loongway£4.9621 rev
WEILAOK High Temperature Silicone Sealant Heat Resistant Glue Black Heat Resistant Silicone Oven Glue for Sealing Glass Cooktops Fireplace Grill Microwave Kitchen Fittings 100ml
WEILAOK£7.535 rev
High Temperature Waterproof Silicone Sealant - 0.68 fl.oz Adhesive Caulk for Kitchen Bath Window Auto Door Microwave Ovens-20ml*2
REJSUMI£4.9428 rev
Heat Resistant Silicone High Temperature Silicone Sealant Oven Door Seal Glue Transparent Heat Resistant Glue for Oven Door Glass Cooktops Microwave Ovens Induction Hobs Kettle Gaskets
ROFPM£8.3726 rev
Trending
90-day click momentumBond It HT30 Heat Resistant Silicone Sealant Black 310ml
Generic£7.694.5★
High Temperature Waterproof Silicone Sealant - 0.68 fl.oz Adhesive Caulk for Kitchen Bath Window Auto Door Microwave Ovens-20ml*2
REJSUMI£4.944.8★
WEILAOK High Temperature Silicone Sealant Heat Resistant Glue Black Heat Resistant Silicone Oven Glue for Sealing Glass Cooktops Fireplace Grill Microwave Kitchen Fittings 100ml
WEILAOK£7.533.4★
Loongway Black Silicone Sealant 20ml X 2Pack Suitable for Moisture-Proof Sealing in Mechanical Components Domestic Appliances Electric Heating Systems and Solar Accessories
loongway£4.964.7★
INNOVAYOU 100ml Black Oven Heat Resistant Glue 570F Heat Resistant High Temperature Adhesive for Oven Grill Microwave
INNOVAYOU£10.664.1★
What buyers say about high temperature silicone sealant
What buyers praise and complain about, mined from review topics.What buyers love
“Great product, as described, arrived on time”
“Does the job”
“Easy to work with”
“excellent value for money”
“Really effective”
“holding up well”
“This product has an amazing adhesion, it's easy to use and very effective”
“its easy enough to clean off. or wear plastic gloves”
“Instructions are clear enough as I had never used anything like this before in this setting”
“being heat resistant it should be fine”
What buyers complain about
“Not proper sticky glue I'm not happy”
“Cracks every time”
“Cheap cr*p product”
“The colour changed”
“poor value - given majority was unusable”
“Doesn't work”
“Messy”
“The product would not squeese through the shaped nozzle”
“so setting is hard”
“Instructions Hidden”
Top return reasons
Common questions
- Is high temperature silicone sealant profitable to sell on Amazon United Kingdom?
- The niche generates £47K/yr across 20 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -28.9%. Flapen's verdict: Skip it (44/100).
- How competitive is the high temperature silicone sealant niche?
- 16 brands and 79 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in high temperature silicone sealant?
- Top complaints mined from reviews: Adhesion/Stickiness, Durability, Quality-Overall. The return rate is 0.8%.
- When does demand for high temperature silicone sealant peak?
- Demand peaks in Nov–Dec; the busiest month runs 1.8× the quietest.
- What does it cost to enter the high temperature silicone sealant niche?
- Listings span £3.32–£10.66; the average listing price is £7.20 (sweet spot $15–$100). The average incumbent carries 944 reviews — the moat a new listing must climb.