plastic filler
Skip itA small market ($73K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.4%return rate — above 5% kills the launch gate
Conversion
Incredible14.5%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+15.6%90-day search growth — must beat 0% to launch
Avg price
Okay£10.13avg listing price — sweet spot $15–$100
Price range
Okay£4.52–£20.13cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay3,855.28avg incumbent reviews — the moat a new listing must climb
Competition
Bad72%top-5 click share — a locked-up shelf
Brand share
Bad92%top-5 brand share — brand-locked demand
Market size
Bad£73K£73K/yr · 49K searches
According to Flapen's Amazon United Kingdom niche tracking, plastic filler is a £73K/yr Amazon United Kingdom market (49K searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 44/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
plastic filler market data
- Units sold / yr
- 6K–8K
- avg 250–500/product
- Revenue / yr
- £61K–£81K
- units × avg price
- Conversion rate
- 14.5%
- Avg BSR
- #105
- Page quality
- 0%
- Prime
- 83%
- Sponsored
- 44%
- Out of stock
- 0.0%
- Avg brand age
- 46 months
- Avg seller age
- 178 days
Competition & brand share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 flat
Sellers
95
Top-5 brand share
92%
Top 20: 96%
Top-5 click share
72%
Top 20: 100%
Open market
5%
- J-B Weld79%
- Mytovosn4%
- --4%
- GORILLA4%
- Ema3%
- ADVANCEDSIL3%
- Open — no brand owns it (2 brands, 5%)
Demand
Weekly Amazon search volume, last 42 weeks — +15.6% search growth over the last 90 days.Top plastic filler search terms
- plastic weld22K/yr
- jb weld plastic bonder17K/yr
- jb weld plastic5K/yr
- jb plastic weld3K/yr
- plastic weld glue3K/yr
Top plastic 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
JB Weld 50132UK 50132 JB Plastic Weld Syringe 25ml Transluscent Yellow 25 ml
J-B Weld£6.384.5★3,401 rev
JB WELD 8237UK JB8237 Plastic Weld Fast-Setting Off White Multi Purpose Reinforced Epoxy Putty 57 G
J-B Weld£5.884.2★10,007 rev
JB Weld 50112UK ClearWeld Quick Setting Epoxy 25ml Clear 25 ml
J-B Weld£6.184.4★6,461 rev
25ml High Strength Plastic Bonder Adhesive
J-B Weld£10.524.6★63 rev
Plastic Weld Cement
--£11.414.3★322 rev
Newest
by launch date
Epoxy Glue | Two Pack Clear and Black Epoxy Resin Glue | Fast Setting & Heavy Duty Repairs for Metal Plastic Wood Ceramic Glass Stone and More | 25ml
ADVANCEDSIL£7.7966 rev
Plastic Glue Waterproof and Heat-Resistant Strong Glue for Plastic Superglue for Bonding Glass Vinyl Acrylic PVC Metal etc. (30g)
Paistely£5.8994 rev
JB Weld Superweld Extreme Instant Adhesive Super Glue Gel Multi-Purpose Ultra-Fast Setting Suitable for All Metals and Other Materials Clear 15g
J-B Weld£6.1324 rev
Plastic Welding Kit 50W 3s Instant Heating 4Shapes/750pcs Hot Staples
Preciva£16.58511 rev
25ml High Strength Plastic Bonder Adhesive
J-B Weld£10.5263 rev
Trending
90-day click momentumEpoxy Glue | Two Pack Clear and Black Epoxy Resin Glue | Fast Setting & Heavy Duty Repairs for Metal Plastic Wood Ceramic Glass Stone and More | 25ml
ADVANCEDSIL£7.794.4★
J-B Weld Syringe Original Cold-Weld Two-Part Epoxy System Ultra-Fast Setting Time High Strength Suitable for All Metals and Other Materials Dark Grey 25ml
J-B Weld£4.754.6★
Plastic Weld Cement
--£11.414.3★
Plastic Welding Kit 50W 3s Instant Heating 4Shapes/750pcs Hot Staples
Preciva£16.584.6★
25ml High Strength Plastic Bonder Adhesive
J-B Weld£10.524.6★
What buyers say about plastic filler
What buyers praise and complain about, mined from review topics.What buyers love
“sticks real good”
“Astonishing product”
“Worth it”
“It is easy to mix and apply, making it convenient for quick fixes around the house”
“Does the job nicely”
“Strong and Easy to Use”
“Strong and durable”
“which makes it much more versatile than the usual single-colour kits”
“that repair feels as strong as new aswel”
“these remain color-accurate for a cleaner finish”
What buyers complain about
“Terrible glue”
“basic operation failed”
“It broke again”
“the setting time was definitley not 5 minutes”
“Hardens in bottle”
“Don't use much”
“Amazon Prime still expensive”
“Does not hold”
“Absolutely rubbish product, completely useless”
“Plastic Bond”
Top return reasons
Common questions
- Is plastic filler profitable to sell on Amazon United Kingdom?
- The niche generates £73K/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +15.6%. Flapen's verdict: Skip it (44/100).
- How competitive is the plastic filler niche?
- 8 brands and 95 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 92% of demand.
- What do buyers complain about in plastic filler?
- Top complaints mined from reviews: Adhesion/Stickiness, Functionality-Overall, Durability. The return rate is 0.4%.
- What does it cost to enter the plastic filler niche?
- Listings span £4.52–£20.13; the average listing price is £10.13 (sweet spot $15–$100). The average incumbent carries 3,855 reviews — the moat a new listing must climb.