car body filler
Worth a lookShows low returns (0.4%), but a small market ($193K/yr) keeps it on the watch list.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Conversion
Good6.8%search→purchase rate — share of searches ending in a sale
Review moat
Good1,030.84avg incumbent reviews — the moat a new listing must climb
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Growth
Okay+19.4%90-day search growth — must beat 0% to launch
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Avg price
Okay£11.75avg listing price — sweet spot $15–$100
Price range
Okay£3.63–£23.89cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay£193K£193K/yr · 240K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United Kingdom niche tracking, car body filler is a £193K/yr Amazon United Kingdom market (240K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Apr. Verdict: Worth a look — 54/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
car body filler market data
- Units sold / yr
- 20K–25K
- avg 1,000–1,250/product
- Revenue / yr
- £235K–£294K
- units × avg price
- Conversion rate
- 6.8%
- Avg BSR
- #40
- Page quality
- 0%
- Prime
- 58%
- Sponsored
- 42%
- Out of stock
- 2.8%
- Avg brand age
- 46 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
12 flat
Sellers
71
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
54%
Top 20: 100%
Open market
18%
- SILVERHOOK36%
- U-POL18%
- Parts Panel9%
- KKwoter7%
- E-TECH6%
- isopon6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +19.4% search growth over the last 90 days.Peak months: Apr · busiest ÷ quietest = 2.2×
Top car body filler search terms
- car body filler89K/yr
- body filler37K/yr
- car body filler repair kit24K/yr
- car filler for bodywork18K/yr
- car filler16K/yr
- p38 body filler10K/yr
- isopon p38 body filler8K/yr
- car body repair kit7K/yr
- big boy body filler6K/yr
- upol body filler6K/yr
Top car body filler 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 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Silverhook Big Boy Body Filler 250ml Ultra Fine Lightweight
SILVERHOOK£6.954.6★5,382 rev
U-POL Isopon Easy Sand Bodyfiller P38 250ml Repairs Damaged Body Panels On Vehicles Fills Minor Scratches Or Serious Dents Used on Bare Steel And Original Paint
U-POL£6.934.6★696 rev
U Pol P38 Easy Sand Body Filler Paste 250ml | Two Part Polyester Car Repair Kit for Dents Scratches Holes | Paintable Smooth Finish | Metal & GRP Compatible
Parts Panel£10.354.6★112 rev
KKwoter 3PCS Car Body Filler Repair Kit: Includes Car Paint Scratch Filler Putty Car Dent Filler Putty and Quick Dry Automotive Paint Chip Repair Filler Kits for deep scratches peeling paint
KKwoter£3.823.8★118 rev
All Types Of Vehicle Anti Rust Dent Gouge Splits & Scratch Repair Advanced Body Filler (685g Filler/15g Hardener)
E-TECH£11.814.6★450 rev
Newest
by launch dateU Pol P38 Easy Sand Body Filler Paste 250ml | Two Part Polyester Car Repair Kit for Dents Scratches Holes | Paintable Smooth Finish | Metal & GRP Compatible
Parts Panel£10.35112 rev
HOCHSTE U Pol P38 Easy Sand Body Filler Car Body Repair Kit with Hardener for Metal GRP and Paint Two-Part Polyester Paste for Dents Scratches Holes Smooth Finish Paintable Surface Red 250ml
HOCHSTE£13.2311 rev
HOCHSTE U Pol P38 Easy Sand Body Filler Car Body Repair Kit with Hardener for Metal GRP and Paint Two-Part Polyester Paste for Dents Scratches Holes Smooth Finish Paintable Surface Red 600ml
HOCHSTE£21.5411 rev
KKwoter 3PCS Car Body Filler Repair Kit: Includes Car Paint Scratch Filler Putty Car Dent Filler Putty and Quick Dry Automotive Paint Chip Repair Filler Kits for deep scratches peeling paint
KKwoter£3.82118 rev
Silverhook Big Boy Metal Filler Conductive 250ml Bundle Car Body Filler & Body Filler Kit Includes 3 Spreaders 10pcs Assorted Sandpaper A Microfibre Cloth A Pair Of Gloves And A Dust Mask
JBL General£15.7135 rev
Trending
90-day click momentumHOCHSTE U Pol P38 Easy Sand Body Filler Car Body Repair Kit with Hardener for Metal GRP and Paint Two-Part Polyester Paste for Dents Scratches Holes Smooth Finish Paintable Surface Red 250ml
HOCHSTE£13.234.7★
Silverhook Big Boy Ultra Fine Body Filler 600ml
SILVERHOOK£12.574.6★
HOCHSTE U Pol P38 Easy Sand Body Filler Car Body Repair Kit with Hardener for Metal GRP and Paint Two-Part Polyester Paste for Dents Scratches Holes Smooth Finish Paintable Surface Red 600ml
HOCHSTE£21.544.7★
JENOLITE Primer Filler Spray Paint | WHITE | High Fill Multi-Surface Primer Paint | Fills Small Dents & Scratches | Perfect For Car Bodywork 3D Printer Models & More | 400ml
JENOLITE£10.554.4★
SILVERHOOK Big Boy Structural Hole Filler 250ml With Fibreglass
SILVERHOOK£7.834.6★
What buyers say about car body filler
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“Easy to use”
“Just the job”
“value for money”
“Did my repair just fine”
“accepts paint readily”
“Dried quick and set like a rock so great for what we wanted”
“Once done, the filler felt smooth and blended well with the rest of the car body”
“Anti rust filler”
“it becomes a very versatile product with numerous uses”
What buyers complain about
“Best used in the fresh air as it has a reasonably pungent chemical odour”
“Expensive really for the amount”
“Rubbish”
“best warmed in hot water as its takes an age to get out of the tube”
“Misleading, rubbish”
“didn't stay even though area was prepared correctly”
“cleaned thoroughly it's just fell off literally”
“Fills holes in metal”
“Sticks like glue”
“The filler comes out very thin - it has the consistency of thick cream”
Top return reasons
Common questions
- Is car body filler profitable to sell on Amazon United Kingdom?
- The niche generates £193K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +19.4%. Flapen's verdict: Worth a look (54/100).
- How competitive is the car body filler niche?
- 12 brands and 71 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 76% of demand.
- What do buyers complain about in car body filler?
- Top complaints mined from reviews: Smell, Value For Money, Quality-Overall. The return rate is 0.4%.
- When does demand for car body filler peak?
- Demand peaks in Apr; the busiest month runs 2.2× the quietest.
- What does it cost to enter the car body filler niche?
- Listings span £3.63–£23.89; the average listing price is £11.75 (sweet spot $15–$100). The average incumbent carries 1,031 reviews — the moat a new listing must climb.