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phosphoric acid rust remover

Worth a look56/100

phosphoric acid rust remover shows demand growing +516.3%, but a small market ($18K/yr) keeps it on the watch list.

Market/yr

$18K

Growth (1y)

+516.3%

Products

31

Brands

23

was 11 a year ago

Sellers

154

Price range

$8.80–$89.61

Returns

0.4%

Rating

4.5★

56/100

Worth a look

Scored 56/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
1
×0.30
Growth
100
×0.30
Competition
59
×0.20
Quality gap
44
×0.10
Returns
96
×0.10

Competition

23%Ospho
  • Ospho23%
  • Evapo-Rust11%
  • CCS CONSOLIDATED CHEMICAL & SOLVENTS10%
  • Chemboys9%
  • Duda Energy9%
  • Rust-Oleum7%
  • Other (17 brands)30%

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them. 23 brands and 154 sellers compete here.

Brands

23 rising

was 11 a year ago

Sellers

154

Top 5 brand share

62%

#ProductBrandPriceRatingReviewsClick shareTrend
1
Ospho 605 Metal Treatment 32 Fl Oz (Pack of 1)Ospho 605 Metal Treatment 32 Fl Oz (Pack of 1)
Ospho$23.194.7★1,93812%falling
2
Ospho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks 1 GallonOspho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks 1 Gallon
Ospho$36.494.6★1,42611%flat
3
Phosphoric Acid 85% - High Purity Industrial Grade - Premium Multi-Purpose Use for Cleaning Etching Rust Removal and More. (100mL)Phosphoric Acid 85% - High Purity Industrial Grade - Premium Multi-Purpose Use for Cleaning Etching Rust Removal and More. (100mL)
CCS CONSOLIDATED CHEMICAL & SOLVENTS$15.974.5★13210%rising
4
Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch MetalDuda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal
Duda Energy$32.754.8★2149%rising
5
DIYChemicals Phosphoric Acid 85% Rust Remover Wood Stain Remover pH Control High Purity Orthophosphoric Acid for Metal Fertilizers - Made in USA - Half Gallon (64 fl oz)DIYChemicals Phosphoric Acid 85% Rust Remover Wood Stain Remover pH Control High Purity Orthophosphoric Acid for Metal Fertilizers - Made in USA - Half Gallon (64 fl oz)
Chemboys$50.354.5★739%flat
6
Evapo-Rust ER012 Heavy Duty 128 oz. Rust Remover for Auto Parts Hardware Antiques | Rust Removers and ChemicalsEvapo-Rust ER012 Heavy Duty 128 oz. Rust Remover for Auto Parts Hardware Antiques | Rust Removers and Chemicals
Evapo-Rust$29.064.6★13,5686%falling
7
CRC Evapo-Rust Heavy-Duty Rust Remover Reusable Acid-Free Non-Corrosive Water-based 32 oz Removes Rust to Bare MetalCRC Evapo-Rust Heavy-Duty Rust Remover Reusable Acid-Free Non-Corrosive Water-based 32 oz Removes Rust to Bare Metal
Evapo-Rust$12.664.4★11,4675%falling
8
Corroseal Rust Converter & Metal Primer Stops & Prevents Corrosion on Metal Pro-Grade Rust Inhibitor for Cars Trucks Trailers Marine & Industrial Equipment 1 GallonCorroseal Rust Converter & Metal Primer Stops & Prevents Corrosion on Metal Pro-Grade Rust Inhibitor for Cars Trucks Trailers Marine & Industrial Equipment 1 Gallon
Corroseal$62.184.6★4,1924%rising
9
jecudi Ospho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks - Compatible with Most Vehicle Paints - Suitable for Indoor Use - Bonus Cleaning Toweljecudi Ospho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks - Compatible with Most Vehicle Paints - Suitable for Indoor Use - Bonus Cleaning Towel
jecudi$45.144.5★2883%rising
10
BLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 GallonBLACK STAR MRO Chem Rust Converter - Converts Rust on Any Steel Surface - 1 Gallon
BLACK STAR$89.614.4★5433%rising
11
FDC Rust Converter Ultra Highly Effective Professional Grade Rust Repair Spray (1 Gallon)FDC Rust Converter Ultra Highly Effective Professional Grade Rust Repair Spray (1 Gallon)
FDC$64.544.4★3,1892%rising
12
Rust-Oleum Rust Dissolver Trigger Spray Gel | Heavy-Duty Corrosion Remover for Metal Tools Cars Bikes Grills Bolts Firearms & More | 32 ozRust-Oleum Rust Dissolver Trigger Spray Gel | Heavy-Duty Corrosion Remover for Metal Tools Cars Bikes Grills Bolts Firearms & More | 32 oz
Rust-Oleum$11.874.3★5,3752%falling
13
Rust Kutter - Stops Rust and Converts Rust Spots to Leave A Primed Surface Ready to Paint Professional Rust Repair Manufactured in USA Sprayer IncludedRust Kutter - Stops Rust and Converts Rust Spots to Leave A Primed Surface Ready to Paint Professional Rust Repair Manufactured in USA Sprayer Included
Rust Kutter$22.644.4★2,3592%falling
14
Phosphoric Acid 85% (32 Oz / 946 mL) 85% Phosphoric Acid Food Grade Technical Grade Liquid Rust Remover Metal Cleaner pH Adjuster DIY ApplicationsPhosphoric Acid 85% (32 Oz / 946 mL) 85% Phosphoric Acid Food Grade Technical Grade Liquid Rust Remover Metal Cleaner pH Adjuster DIY Applications
Talsen Chemicals$22.844.7★172%flat
15
Rust-Oleum Rust Dissolver Soak & Bath | Heavy-Duty Corrosion Remover for Metal Tools Cars Bikes Grills Bolts Firearms & More | GallonRust-Oleum Rust Dissolver Soak & Bath | Heavy-Duty Corrosion Remover for Metal Tools Cars Bikes Grills Bolts Firearms & More | Gallon
Rust-Oleum$33.504.1★532%flat

Product shelf

All 31 tracked products in this niche.

Ospho 605 Metal Treatment 32 Fl Oz (Pack of 1)

Ospho 605 Metal Treatment 32 Fl Oz (Pack of 1)

Ospho

$23.194.7★1,938 reviews

Ospho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks 1 Gallon

Ospho Metal Treatment Gallon - Rust Converter for Metal Surfaces - Rust Remover for Cars Boats Trucks 1 Gallon

Ospho

$36.494.6★1,426 reviews

Phosphoric Acid 85% - High Purity Industrial Grade - Premium Multi-Purpose Use for Cleaning Etching Rust Removal and More. (100mL)

Phosphoric Acid 85% - High Purity Industrial Grade - Premium Multi-Purpose Use for Cleaning Etching Rust Removal and More. (100mL)

CCS CONSOLIDATED CHEMICAL & SOLVENTS

$15.974.5★132 reviews

Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal

Duda Energy 1 Quart / 950ml 85% Food Grade Phosphoric Acid Rust Remover Clean Etch Metal

Duda Energy

$32.754.8★214 reviews

DIYChemicals Phosphoric Acid 85% Rust Remover Wood Stain Remover pH Control High Purity Orthophosphoric Acid for Metal Fertilizers - Made in USA - Half Gallon (64 fl oz)

DIYChemicals Phosphoric Acid 85% Rust Remover Wood Stain Remover pH Control High Purity Orthophosphoric Acid for Metal Fertilizers - Made in USA - Half Gallon (64 fl oz)

Chemboys

$50.354.5★73 reviews

Evapo-Rust ER012 Heavy Duty 128 oz. Rust Remover for Auto Parts Hardware Antiques | Rust Removers and Chemicals

Evapo-Rust ER012 Heavy Duty 128 oz. Rust Remover for Auto Parts Hardware Antiques | Rust Removers and Chemicals

Evapo-Rust

$29.064.6★13,568 reviews

CRC Evapo-Rust Heavy-Duty Rust Remover Reusable Acid-Free Non-Corrosive Water-based 32 oz Removes Rust to Bare Metal

CRC Evapo-Rust Heavy-Duty Rust Remover Reusable Acid-Free Non-Corrosive Water-based 32 oz Removes Rust to Bare Metal

Evapo-Rust

$12.664.4★11,467 reviews

Corroseal Rust Converter & Metal Primer Stops & Prevents Corrosion on Metal Pro-Grade Rust Inhibitor for Cars Trucks Trailers Marine & Industrial Equipment 1 Gallon

Corroseal Rust Converter & Metal Primer Stops & Prevents Corrosion on Metal Pro-Grade Rust Inhibitor for Cars Trucks Trailers Marine & Industrial Equipment 1 Gallon

Corroseal

$62.184.6★4,192 reviews

Reviews

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

What buyers love

Rusts/Corrodes25%

“Did a great job removing rust”

Quality-Overall14%

“This product was perfect for my needs”

Efficiency11%

“Performed well”

Advertised Vs Actual Product8%

“Just like advertised”

Ease Of Use6%

“Easy to work with”

Value For Money6%

“Worth the money”

Ease Of Cleaning3%

“Easy to use and clean up”

Paint Quality3%

“Well needed good paint overall”

Durability2%

“Very durable”

Recycle/Reuse1%

“And I love that it's reusable”

What buyers complain about

Rusts/Corrodes32%

“looks rusty”

Functionality-Overall11%

“DOESNT WORK”

Paint Quality3%

“or of this is a black paint that will chip off”

Size-Overall3%

“Small Bottle & Ineffective”

Leak-Proof3%

“Leaked out”

Value For Money3%

“for what I paid it's insane”

Advertised Vs Actual Product2%

“It doesnt work as it was described”

Ease Of Cleaning2%

“is so hard to clean”

Color2%

“It's dark gray”

Quality-Overall2%

“Garbage”

Top return reasons

  • Rusts/Corrodes21%
  • Functionality-Overall15%
  • Leak-Proof14%
  • Size-Overall11%
  • Advertised Vs Actual Product10%
  • Value For Money6%
  • Paint Quality3%
  • Defective Material/Parts3%
  • Color2%
  • Wet Cleaning2%

Data scraped July 8, 2026 · Marketplace baseline: 4.4★ avg rating · $22.74 median price · 2.3% median returns across 14,634 tracked niches.