![What is this stuff building up on my AC radiator fins. I can't find what it is, but it doesn't seem to be the metal itself corroding, and it is kinda like What is this stuff building up on my AC radiator fins. I can't find what it is, but it doesn't seem to be the metal itself corroding, and it is kinda like](https://preview.redd.it/e5w97m945ei71.jpg?auto=webp&s=42c68166756e8ac22c43a8fd5980a5a645bcf4d9)
What is this stuff building up on my AC radiator fins. I can't find what it is, but it doesn't seem to be the metal itself corroding, and it is kinda like
![Air Conditioning Electric Oil Radiator Water Heater With Chrome Metal Of Front Side Oil Filled Heater Isolated Set Icons Of Household Appliances On Transparent Background 3d Illustration Stock Illustration - Download Image Air Conditioning Electric Oil Radiator Water Heater With Chrome Metal Of Front Side Oil Filled Heater Isolated Set Icons Of Household Appliances On Transparent Background 3d Illustration Stock Illustration - Download Image](https://media.istockphoto.com/id/918372322/vector/air-conditioning-electric-oil-radiator-water-heater-with-chrome-metal-of-front-side-oil.jpg?s=1024x1024&w=is&k=20&c=hdvfi-Z9JOdTxtXuQYkWkRHhvrSDQienPvhKEYnsDoM=)
Air Conditioning Electric Oil Radiator Water Heater With Chrome Metal Of Front Side Oil Filled Heater Isolated Set Icons Of Household Appliances On Transparent Background 3d Illustration Stock Illustration - Download Image
![Amazon.com: FOYTOKI 10 Pcs Vent Radiator Air Vent Water Valve Lock Key Water Valve Key Radiator Pipe Tool Switch Accessories Square Tool Metal Cabinets Radiator Keys Square Socket Keys Zinc Alloy Air : Amazon.com: FOYTOKI 10 Pcs Vent Radiator Air Vent Water Valve Lock Key Water Valve Key Radiator Pipe Tool Switch Accessories Square Tool Metal Cabinets Radiator Keys Square Socket Keys Zinc Alloy Air :](https://m.media-amazon.com/images/I/61Yj+BOOluL.jpg)
Amazon.com: FOYTOKI 10 Pcs Vent Radiator Air Vent Water Valve Lock Key Water Valve Key Radiator Pipe Tool Switch Accessories Square Tool Metal Cabinets Radiator Keys Square Socket Keys Zinc Alloy Air :
![Radiator Factory-Fit Natural Finish for 59-64 Chevrolet Bel Air/Biscayne/Impala Be Cool Radiator | Be Cool Radiators Radiator Factory-Fit Natural Finish for 59-64 Chevrolet Bel Air/Biscayne/Impala Be Cool Radiator | Be Cool Radiators](https://www.becool.com/sites/default/files/styles/product_display_image/public/products/60008_1.jpg?itok=1yvbtsMz)
Radiator Factory-Fit Natural Finish for 59-64 Chevrolet Bel Air/Biscayne/Impala Be Cool Radiator | Be Cool Radiators
![3 Column Horizontal Radiator Raw Metal H:600mm W:904mm - Bathroom & Heating leading supplier in Ireland - Niko Bathrooms 3 Column Horizontal Radiator Raw Metal H:600mm W:904mm - Bathroom & Heating leading supplier in Ireland - Niko Bathrooms](https://nikobathrooms.ie/wp-content/uploads/2016/08/uel-008-scaled.jpg)
3 Column Horizontal Radiator Raw Metal H:600mm W:904mm - Bathroom & Heating leading supplier in Ireland - Niko Bathrooms
![Radiator Factory-Fit Polished Finish for 55-57 Chevrolet Bel Air LT-1 Be Cool Radiator | Be Cool Radiators Radiator Factory-Fit Polished Finish for 55-57 Chevrolet Bel Air LT-1 Be Cool Radiator | Be Cool Radiators](https://www.becool.com/sites/default/files/products/60001_0.jpg)
Radiator Factory-Fit Polished Finish for 55-57 Chevrolet Bel Air LT-1 Be Cool Radiator | Be Cool Radiators
![OEM Aluminum Radiator Customized Portable Air Conditioner Excavator Radiator for Excavator Parts Radiator Dz96259532037 - China a Radiator, Shacman | Made-in-China.com OEM Aluminum Radiator Customized Portable Air Conditioner Excavator Radiator for Excavator Parts Radiator Dz96259532037 - China a Radiator, Shacman | Made-in-China.com](https://image.made-in-china.com/2f0j00lkmovFqtLTbM/OEM-Aluminum-Radiator-Customized-Portable-Air-Conditioner-Excavator-Radiator-for-Excavator-Parts-Radiator-Dz96259532037.jpg)
OEM Aluminum Radiator Customized Portable Air Conditioner Excavator Radiator for Excavator Parts Radiator Dz96259532037 - China a Radiator, Shacman | Made-in-China.com
![Detail of the heat transfer surface of the aluminum radiator (formed... | Download Scientific Diagram Detail of the heat transfer surface of the aluminum radiator (formed... | Download Scientific Diagram](https://www.researchgate.net/publication/350702279/figure/fig2/AS:1009955066892295@1617803460388/Detail-of-the-heat-transfer-surface-of-the-aluminum-radiator-formed-via-CAB-controlled.png)
Detail of the heat transfer surface of the aluminum radiator (formed... | Download Scientific Diagram
![Radiator Kenworth W900 Air cooling Grille Metal, AIR COOLER, metal, kenworth, aftermarket png | PNGWing Radiator Kenworth W900 Air cooling Grille Metal, AIR COOLER, metal, kenworth, aftermarket png | PNGWing](https://w7.pngwing.com/pngs/438/608/png-transparent-radiator-kenworth-w900-air-cooling-grille-metal-air-cooler-metal-kenworth-aftermarket.png)