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Updated
Pros
  • Effective on multiple components
  • Simple to use
  • Long-lasting results
  • Works on various systems
  • Quick results
  • Reconditions seals effectively
Cons
  • Larger bottle size
  • May not work on severely damaged radiators
  • Smaller bottle size
  • May require multiple treatments for severe leaks
Bottom Line
BlueDevil Radiator and Block Sealer offers a reliable solution for sealing leaks in radiators and engine blocks. It's easy to use and works with all types of coolants.
ATP AT-205 Re-Seal Stops Leaks is a professional-grade sealer that stops leaks in radiators, power steering systems, and more. It's fast-acting and compatible with all fluids.
Size
32 oz
8 oz
Type
Liquid
Liquid
Compatibility
All antifreeze types
All fluid types
Height
7.25 inches
4 Inches
Length
2.75 inches
7 Inches
Weight
1 Pounds
0.110231131 pounds
Width
2.75 inches
4.5 Inches
Part Number
00205
AT-205
Model
00205
AT-205

When it comes to addressing leaks and damage in a vehicle's cooling system, radiator sealants are an essential tool for many car owners and mechanics. Two popular products on the market are BlueDevil Radiator and Block Sealer and ATP AT-205 Re-Seal Stops Leaks. While both products share similar goals, there are distinct differences between them that set them apart from one another.

BlueDevil Radiator and Block Sealer

The BlueDevil Radiator and Block Sealer is a well-known product in the automotive industry, designed to seal leaks in radiators, engine blocks, and heads. This sealant works by circulating through the cooling system, seeking out cracks and holes, and forming a strong, long-lasting bond to prevent further leakage. The formula is safe for use with all types of antifreeze and coolants, making it a versatile solution for various vehicle applications.

One of the key benefits of BlueDevil Radiator and Block Sealer is its ease of use. Simply pour the recommended amount into the radiator, idle the engine, and let the sealant do its job. The product is also compatible with both gasoline and diesel engines, making it a popular choice among car owners with diverse vehicle types.

ATP AT-205 Re-Seal Stops Leaks

The ATP AT-205 Re-Seal Stops Leaks is another highly-regarded radiator sealant that aims to stop leaks in radiators, heater cores, and engine blocks. This product uses a unique blend of chemicals to target and seal cracks, holes, and porous surfaces, preventing coolant loss and potential engine damage.

One of the standout features of ATP AT-205 Re-Seal Stops Leaks is its ability to work with a wide range of materials, including aluminum, copper, and plastic. This makes it an ideal solution for modern vehicles with complex cooling systems. Additionally, the product is non-toxic and environmentally friendly, reducing concerns about potential harm to people or the environment.

Comparison

When comparing BlueDevil Radiator and Block Sealer and ATP AT-205 Re-Seal Stops Leaks, several key differences emerge:

  • Effectiveness: Both products are effective at stopping leaks, but BlueDevil may have a slight edge in terms of its ability to seal larger cracks and holes. ATP AT-205, on the other hand, excels at sealing smaller, more porous surfaces.
  • Ease of use: BlueDevil is generally easier to use, with a simpler application process and fewer precautions required. ATP AT-205 requires more attention to dosage and application procedures.
  • Compatibility: Both products are compatible with various types of antifreeze and coolants, but ATP AT-205 has a broader range of material compatibility, including modern materials like plastic and composite components.
  • Price: BlueDevil Radiator and Block Sealer tends to be slightly more expensive than ATP AT-205 Re-Seal Stops Leaks, although prices can vary depending on the retailer and location.

Conclusion

In conclusion, both BlueDevil Radiator and Block Sealer and ATP AT-205 Re-Seal Stops Leaks are reliable radiator sealants that can help car owners address leaks and damage in their vehicle's cooling system. While both products share similar goals, they differ in terms of effectiveness, ease of use, compatibility, and price. By understanding the strengths and weaknesses of each product, car owners and mechanics can make informed decisions about which radiator sealant to use for their specific needs. Whether you choose BlueDevil or ATP AT-205, rest assured that these products will help you stop leaks and keep your engine running smoothly.