Phosphorsäure
Phosphorsäure shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 22% of 1,428 Auto & Motorrad niches · +6 vs the category median of 51
Is Phosphorsäure profitable on Amazon?
According to Flapen's Amazon Germany niche tracking, Phosphorsäure is a €79K/yr Amazon Germany market (48K searches/yr). The top 5 brands hold 87% of demand. Verdict: Worth a look — 57/100.
Phosphorsäure: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +97.2% over the last 90 days and 7.0% of searches end in a purchase.
€79K
revenue / yr
Who owns the niche?
The top 5 brands hold 87% of demand, so 13% of the market is open.
13%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 16 products
Top Phosphorsäure products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Cleanerist Phosphorsäure 85% I H3PO4 - E338 I Rostumwandler I Kalklöser I Urinsteinlöser I 1 Liter
- Price
- €19.86
- Rating
- 4.7/5
- Reviews
- 222
- Age
- 5y ago
Phosphorsäure 75% 1 L | Rostumwandler Rostentferner Rostlöser für Metall Konzentrat zum Anmischen
- Price
- €7.65
- Rating
- 4.7/5
- Reviews
- 400
- Age
- 7y ago
Phosphorsäure 75% 5 L | Rostumwandler Rostentferner Rostlöser für Metall Konzentrat zum Anmischen
- Price
- €24.89
- Rating
- 4.7/5
- Reviews
- 400
- Age
- 7y ago
Centra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago
Chemdiscount 1Liter (ca. 1 6kg) Phosphorsäure (H3PO4) 85%
- Price
- €15.86
- Rating
- 4.7/5
- Reviews
- 142
- Age
- 4y ago
Trending
90-day click momentumCentra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago
SOLUP Phosphorsäure 25% 1 L Technische Lösung I Rostumwandler & Entroster I Kalklöser & Urinsteinlöser I Geeignet für Stahl & Edelstahl I Flasche mit Sicherheitsverschluss
- Price
- €18.99
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 7mo ago
Cleanerist Phosphorsäure 85% H3PO4 E338 5 Liter Kanister inkl Ausgießer Hochwirksamer Rostumwandler Kalklöser Urinsteinlöser für Metall Pflege Sanitäranlagen Reinigung Profi Premium Qualität
- Price
- €70.23
- Rating
- 4.7/5
- Reviews
- 222
- Age
- 5y ago
Cleanerist 3x1 Liter Rostumwandler I Rostentferner | Rostschutz | Phosphorsäure I Rostlöser I Flugrostentferner
- Price
- €23.68
- Rating
- 3.6/5
- Reviews
- 7
- Age
- 5y ago
presto 603079 Rostumwandler 100 ml
- Price
- €6.58
- Rating
- 4.6/5
- Reviews
- 3,447
- Age
- 13y ago
Newest
by launch dateCentra24 Phosphorsäure 75% 1.6kg (=1L) Rostlöser Entkalker Urinsteinlöser hochkonzentriert lange Haltbarkeit technische Qualität
- Price
- €11.89
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5mo ago
SOLUP Phosphorsäure 25% 1 L Technische Lösung I Rostumwandler & Entroster I Kalklöser & Urinsteinlöser I Geeignet für Stahl & Edelstahl I Flasche mit Sicherheitsverschluss
- Price
- €18.99
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 7mo ago
Carbigo TankClean PRO 1.000ml | Hochwirksamer Tankrostentferner Konzentrat | Entfernt porentief Rost aus Stahltanks | Für Motorrad Auto Boot | Phosphorsäurebasiert | Made in Germany
- Price
- €10.85
- Rating
- 3.5/5
- Reviews
- 34
- Age
- 1y ago
FABA Phosphorsäure 85% 5 L im Kanister
- Price
- €41.30
- Rating
- 4.8/5
- Reviews
- 22
- Age
- 3y ago
Chemdiscount 1Liter (ca. 1 6kg) Phosphorsäure (H3PO4) 85%
- Price
- €15.86
- Rating
- 4.7/5
- Reviews
- 142
- Age
- 4y ago
Competition: brands, sellers & click share
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
Brands
10 flat
Sellers
31
Top-5 brand share
87%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
7%
- Furthchemie34%
- Die Seifenblase27%
- Centra2411%
- Chemdiscount9%
- SOLUP7%
- Optimal Products die bessere Lösung5%
- Open — no brand owns it (4 brands, 7%)
Phosphorsäure demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Phosphorsäure search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- phosphorsäure42K/yr
- phosphorsäure 85%4K/yr
- phosphorsäure kaufen3K/yr
What reviews say buyers love and hate about Phosphorsäure
What buyers mention most, as a share of all reviews.
What buyers love
94% of reviews“Produkt wie beschrieben”
“Top Produkt”
“Guter Rostumwandler”
“erleichtert ablesen für sehschwache,,.”
“Wirksam”
What buyers complain about
76% of reviews“Sogar völlig Verrostetes (mit tiefen Rost Narben)”
“Funktioniert nicht so wie beschrieben”
“Geldverschwendung”
“Aber den rostumwandler pur aufzutragen hatte zum Problem geführt das es eine weiße pulfrige Schicht gab auf der keine Farbe hält”
Phosphorsäure return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Phosphorsäure questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
