Is 耐水ペーパー 600番 profitable to sell on Amazon Japan?

The niche generates ¥503K/yr across 9 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.8%. Flapen's verdict: Worth a look (54/100).

How competitive is the 耐水ペーパー 600番 niche?

9 brands and 35 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.

What does it cost to enter the 耐水ペーパー 600番 niche?

Listings span ¥224.07–¥743.42; the average listing price is ¥492.65 (sweet spot $15–$100). The average incumbent carries 441 reviews — the moat a new listing must climb.

耐水ペーパー 600番

Worth a look

Shows low returns (0.2%), but prices mostly outside the sweet spot ($224.07–$743.42) keeps it on the watch list.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Conversion

Great11.0%

search→purchase rate — share of searches ending in a sale

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Review moat

Great440.56

avg incumbent reviews — the moat a new listing must climb

Market size

Good¥503K

¥503K/yr · 9K searches

Growth

Okay+14.8%

90-day search growth — must beat 0% to launch

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Competition

Bad79%

top-5 click share — a locked-up shelf

Avg price

Bad¥492.65

avg listing price — sweet spot $15–$100

Price range

Bad¥224.07–¥743.42

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals Low Review Barrier High Price

According to Flapen's Amazon Japan niche tracking, 耐水ペーパー 600番 is a ¥503K/yr Amazon Japan market (9K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 54/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

耐水ペーパー 600番 market data

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: ¥493K–¥616K; units × avg price
Conversion rate: 11.0%
Avg BSR: #187
Page quality: 0%
Prime: 67%
Sponsored: 56%
Out of stock: 1.7%
Avg brand age: 82 months
Avg seller age: 194 days

Competition & brand share

The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

79%

Top 20: 100%

Open market

15%

MORLARCO40%
IROKCAKPT15%
トラスコ中山(TRUSCO)9%
BODHTAT8%
Holts(ホルツ)6%
ビッグマン(Bigman)6%
Open — no brand owns it (3 brands, 15%)

Demand

Weekly Amazon search volume, last 43 weeks — +14.8% search growth over the last 90 days.

Open Trend

Top 耐水ペーパー 600番 search terms

耐水ペーパー 600番3K/yr +31.7%7.3% conv.
サンドペーパー 6003K/yr +9.3%6.5% conv.
耐水ペーパー 6003K/yr +0.7%7.9% conv.

All search terms

Top 耐水ペーパー 600番 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MORLARCO 耐水ペーパー 600番 30枚セット紙やすり 230×93mm サンドペーパー

MORLARCO¥629.713.8★13 rev

IROKCAKPT 紙やすり耐水ペーパーセット #600番紙ヤスリ (26枚入) 中目サンドペーパー耐水ヤスリ 230 mm x 93 mm 車金属磨き木工DIY作業にキッチンの掃に最適です

IROKCAKPT¥632.544.1★52 rev

TRUSCO(トラスコ) 耐水ペｰパｰ 228X280#600 5枚入 TTPA-600-5P

トラスコ中山(TRUSCO)¥367.484.3★30 rev

BODHTAT 耐水ペーパー #600番紙やすり 280mmx230mm 中目紙ヤスリ 15枚入サンドペーパー耐水ヤスリ車金属磨き木工DIY作業にキッチンの掃に最適です

BODHTAT¥678.544.0★46 rev

ホルツ補修用品耐水サンドペーパー #600 細目 6枚入 Holts MH980

Holts(ホルツ)¥224.074.2★90 rev

Newest

by launch date

BODHTAT 耐水ペーパー #600番紙やすり 280mmx230mm 中目紙ヤスリ 15枚入サンドペーパー耐水ヤスリ車金属磨き木工DIY作業にキッチンの掃に最適です

BODHTAT¥678.5446 rev

9mo ago

MORLARCO 耐水ペーパー 600番 30枚セット紙やすり 230×93mm サンドペーパー

MORLARCO¥629.7113 rev

1y ago

Fornaer 紙ヤスリサンドペーパー耐水ペーパーセット９種類 36枚入＃400、＃600、＃800、＃1000、＃1200、＃1500、＃2000、＃2500、＃3000×各4枚ホビー、木工作業、キッチンやトイレの掃除、DIYに研磨用パッドサンダー取り付け可能

Fornaer¥743.421,051 rev

3y ago

IROKCAKPT¥632.5452 rev

4y ago

[ネセクト] 耐水ペーパーセット 12枚 #600 サンドペーパー耐水紙やすり金属木工補修[日本国内企画品]

nesekt（ネセクト）¥628.912,406 rev

4y ago

What buyers say about 耐水ペーパー 600番

What buyers praise and complain about, mined from review topics.

What buyers love

コストパフォーマンス50%

“安価で良い”

サイズ全体25%

“大きさがいいです. これだけあればしばらく大丈夫です。大きさがちょうど良く無駄にならなくていいです。”

正しい内容13%

“数が多く良かったです”

使用の容易さ13%

“番目も多く使いやすかったです”

Common questions

Is 耐水ペーパー 600番 profitable to sell on Amazon Japan?: The niche generates ¥503K/yr across 9 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.8%. Flapen's verdict: Worth a look (54/100).
How competitive is the 耐水ペーパー 600番 niche?: 9 brands and 35 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.
What does it cost to enter the 耐水ペーパー 600番 niche?: Listings span ¥224.07–¥743.42; the average listing price is ¥492.65 (sweet spot $15–$100). The average incumbent carries 441 reviews — the moat a new listing must climb.