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Corrosion Block

Fail

The top 5 brands take 98% of clicks, so Corrosion Block is a Fail.

Flapen Score
44
44 / 100
Ranks 5,081 of 7,287 Automotive niches · −5 vs the category median of 49
Market size
$34K/yr13K searches / yr
90-day growth
+18.6%search demand this quarter
Competition
78%top-5 click share · 6 brands · 126 sellers

Flapen Score

Corrosion Block against its category

The dotted line is the Automotive average. Past it, Corrosion Block is stronger. Inside it, weaker.

44Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Corrosion Block market on Amazon at a glance

Shoppers on Amazon United States searched for Corrosion Block 13K times last year and spent an estimated $34K. The top 5 brands take 98% of clicks. Flapen scores it 44 out of 100, a Fail.

01 · Demand

An estimated 8.6% of those searches ended in a purchase.

Shoppers searched for this 13K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.6% of those searches ended in a purchase. Searches in the last 90 days moved +18.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $34K a year.

Searches, last 12 months
13K
Growth, 90 days vs prior 90
+18.6%
Conversion, latest week
8.6%
Market size, estimated
$34Ka year
Peak month
April1.6× the quietest month
Top search term
corrosion block8K searches a year

02 · Price

A sale here is worth $29.75.

Listings sell for $29.75 on average, from $14.76 to $87.50. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 0 to 100 of them. At $29.75 that is $0 to $3K a year per listing.

Average price
$29.75inside the $15 to $100 sweet spot
Price range
$14.76–$87.50
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
2K–2K
Units per listing a year
0–100
Revenue per listing a year
$0–$3K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

79% of listings pay for placement with sponsored ads. 43% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #320 within Finishing. It carries 839 reviews at 4.72 stars, so a new listing needs social proof before a better product.

Sponsored listings
79%
Prime listings
43%
Out of stock, average day
0.0%
Average rank
#320in Finishing
Average rating
4.72 starsAmazon United States average 4.42 stars
Average reviews
839per listing
Listings tracked
14

04 · Newcomers

0 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 151 months on average, so the names here are established.

Launched, last 12 months
4
Successful launches
0Amazon's first-year sales bar
Average brand age
151 months

Products

Top Corrosion Block products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 78% of clicks. A locked shelf that new listings rarely crack.

Brands

6 rising

Sellers

126

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

78%

Top 20: 100%

Open market

0%

  • Brand 156%
  • Brand 218%
  • Brand 312%
  • Brand 46%
  • Brand 56%
  • Brand 62%
  • Open — no brand owns it (0%)

Demand

Corrosion Block search demand

Weekly searches over the year, seasonality beneath. Pick a range.

350250Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Reviews and returns

What reviews say buyers love and hate about Corrosion Block

We read the reviews and the return reasons for every product selling here.

27%of positive reviews mention “Quality-Overall”
19%of negative reviews mention “Value For Money”
<0.1%of orders come back, a rate Amazon rounds to zero
“it is pretty expensive”
A buyer, on “Value For Money”19% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

15 topics

NegativePositive

FAQ

Common Corrosion Block questions

Answered from the same tracked data.