---
title: "Plastic Filler — £73K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/plastic-filler"
last_updated: "2026-07-31T16:06:42.252Z"
locale: en
meta:
description: "Niche score 44/100 · £73K/yr market · 49K searches/yr · £10.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · £73K/yr market · 49K searches/yr · £10.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Plastic Filler — £73K/yr Amazon UK Niche (2026) - Flapen"
---
# **plastic filler**
**Skip it**
A small market ($73K/yr) — this niche doesn't clear our bar today.
Market size 18Growth 45Conversion 97Competition 23Returns 98Price range 33Avg price 34Brand share 21Review moat 26Quality gap 48
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+15.6%**
90-day search growth — must beat 0% to launch
**Avg price**
**Okay****£10.13**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£4.52–£20.13**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****3,855.28**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****92%**
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KPrime Day '26Oct '25Nov '25Jan '26Mar '26Apr '26Jun '26
[**Open Trend **](https://flapen.com/research/uk/diy-tools/plastic-filler/trend)
## **Top plastic filler search terms**
- **plastic weld**22K/yr+1.1%5.0% conv. - **jb weld plastic bonder**17K/yr+37.5%4.2% conv. - **jb weld plastic**5K/yr+19.4%7.0% conv. - **jb plastic weld**3K/yr+29.1%9.8% conv. - **plastic weld glue**3K/yr-11.3%4.3% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/plastic-filler/search-terms)
## **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.
0%10%£7K20%£15K30%£22K40%£29K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JB Weld 50132UK 50132 JB Plastic Weld Syringe 25ml Transluscent Yellow 25 ml**J-B Weld**£6.38**4.5★3,401 rev](https://www.amazon.co.uk/dp/B009EU5ZMK) [2**JB WELD 8237UK JB8237 Plastic Weld Fast-Setting Off White Multi Purpose Reinforced Epoxy Putty 57 G**J-B Weld**£5.88**4.2★10,007 rev](https://www.amazon.co.uk/dp/B003S2E4UE) [3**JB Weld 50112UK ClearWeld Quick Setting Epoxy 25ml Clear 25 ml**J-B Weld**£6.18**4.4★6,461 rev](https://www.amazon.co.uk/dp/B009EU5ZM0) [4**25ml High Strength Plastic Bonder Adhesive**J-B Weld**£10.52**4.6★63 rev](https://www.amazon.co.uk/dp/B082859RFR) [5**Plastic Weld Cement**--**£11.41**4.3★322 rev](https://www.amazon.co.uk/dp/B0053WXLVU)
**~~View all top sellers →~~**
### **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**£7.79**66 rev7mo ago](https://www.amazon.co.uk/dp/B0G3X3WTDG) [**Plastic Glue Waterproof and Heat-Resistant Strong Glue for Plastic Superglue for Bonding Glass Vinyl Acrylic PVC Metal etc. (30g)**Paistely**£5.89**94 rev1y ago](https://www.amazon.co.uk/dp/B0DS244K42) [**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**£6.13**24 rev2y ago](https://www.amazon.co.uk/dp/B0D6BM3J73) [**Plastic Welding Kit 50W 3s Instant Heating 4Shapes/750pcs Hot Staples**Preciva**£16.58**511 rev2y ago](https://www.amazon.co.uk/dp/B0CZL45P5R) [**25ml High Strength Plastic Bonder Adhesive**J-B Weld**£10.52**63 rev2y ago](https://www.amazon.co.uk/dp/B082859RFR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**£7.79**4.4★**▲ 259%**](https://www.amazon.co.uk/dp/B0G3X3WTDG) [**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**£4.75**4.6★**▲ 99%**](https://www.amazon.co.uk/dp/B072V321DX) [**Plastic Weld Cement**--**£11.41**4.3★**▲ 76%**](https://www.amazon.co.uk/dp/B0053WXLVU) [**Plastic Welding Kit 50W 3s Instant Heating 4Shapes/750pcs Hot Staples**Preciva**£16.58**4.6★**▲ 56%**](https://www.amazon.co.uk/dp/B0CZL45P5R) [**25ml High Strength Plastic Bonder Adhesive**J-B Weld**£10.52**4.6★**▲ 49%**](https://www.amazon.co.uk/dp/B082859RFR)
**~~View all trending →~~**
## **What buyers say about plastic filler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Adhesion/Stickiness**16%
*“sticks real good”*
**Quality-Overall**16%
*“Astonishing product”*
**Value For Money**12%
*“Worth it”*
**Ease Of Use**9%
*“It is easy to mix and apply, making it convenient for quick fixes around the house”*
**Advertised Vs Actual Product**8%
*“Does the job nicely”*
**Strength**7%
*“Strong and Easy to Use”*
**Durability**6%
*“Strong and durable”*
**Efficiency**4%
*“which makes it much more versatile than the usual single-colour kits”*
**Maintenance And Repair**4%
*“that repair feels as strong as new aswel”*
**Color**2%
*“these remain color-accurate for a cleaner finish”*
### **What buyers complain about **
**Adhesion/Stickiness**20%
*“Terrible glue”*
**Functionality-Overall**13%
*“basic operation failed”*
**Durability**6%
*“It broke again”*
**Assembly/Installation**6%
*“the setting time was definitley not 5 minutes”*
**Hard Feel**5%
*“Hardens in bottle”*
**Ease Of Use**5%
*“Don't use much”*
**Value For Money**4%
*“Amazon Prime still expensive”*
**Strength**4%
*“Does not hold”*
**Quality-Overall**4%
*“Absolutely rubbish product, completely useless”*
**Material Quality**3%
*“Plastic Bond”*
### **Top return reasons **
**Functionality-Overall**23%
**Adhesion/Stickiness**13%
**Defective Material/Parts**7%
**Color**7%
**Maintenance And Repair**7%
**Quality-Overall**5%
**Product Condition**4%
**Durability**3%
**Material Quality**3%
**Advertised Vs Actual Product**3%
## **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.
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