Hi AJ. Single-part polyurea is the better product. Though Rust Bullet DuraGrade is a quality coating, single-part polyurea is thicker per coat and the data sheets demonstrate a better rating for abrasion resistance. This translates to higher durability and longer wear. The main reason for the differences in pricing on single-part polyurea between the different vendors is the recommended coverage rate by the manufacturer. SPGX is slightly thinner per coat (less material) and All Weather Polyurea is the thickest (most material). Nohr-S is in the middle. Any one of the three offered will serve you very well. The beauty of electing for a commercial quality DIY system is that years down the road when the clear coat is showing its age, you can degrease the surface, rough it up with sandpaper, and apply a new clear coat to make it look almost new again.

Thank you for your response. The $5 per sq. ft. quote from GarageExperts includes diamond grinding the floor and applying an epoxy coating with a protective topcoat.

Since my concrete is in good condition and only etching is needed as part of prepping the floor, 1-part polyurea is another option that I’m considering, which I believe could last up to 10 years. However, I’m not sure if it would be a better choice than Rust Bullet Duragrade, as I’m uncertain about its longevity.

Based on pricing from Legacy Industrial, the estimated cost for 1-part polyurea materials would be around $900 (Etching – $70, Polyurea (3 gallons for a base coat and top coat): $570, Pigment: $150, Flakes: $100).

If I go with SPGX, which offers better coverage per gallon, the cost would be approximately $700 (Etching – $80, Polyurea – $520, Flakes – $100).

For all-weather polyurea, the cost would be around $950.

If the 1-part SPGX polyurea can truly last for 10 years, it seems like a solid option to consider.

Hello AJ. You are correct about the 1-part epoxy paint. It’s just going to turn into a mess within a year or less where you park your cars. $5 per square foot is about the average price now for an epoxy coating system. I can’t comment on the quality of the system since there is no information on the exact products being used or how many coats and etc. Single-part polyurea requires that the floor be properly etched, but that’s not considered extensive floor prep unless there is something else going on with your concrete. Does it need repairs or is it in good shape?

A quote for $350 to apply a 1-part epoxy from Seal Krete, along with a clear coat.
Another quote for $5 per sq. ft. (2000$ total) for a professional-grade epoxy installation, including full reflection and a clear coat, with a 15-year warranty.
Based on your articles, it seems that 1-part epoxy offers no real protection against hot tire pickup and will likely start peeling off in about a year. If I upgrade to Rust Bullet Duragrade, the cost would be around $570 for 2 base coats plus a clear coat, assuming I do the work myself.

The variety of options is overwhelming, and I’m struggling to make a decision. 1-part polyurea also requires extensive floor prep, which is beyond my DIY abilities. Given my situation, is there a specific option you would recommend?

Hello Michael. No, Rust Bullet (as is most concrete coatings) is not designed to fix spalling and other concrete issues. When applied thick like that, it will not cure properly. We have an article here that discusses the proper methods and materials for repairing spalled and pitted concrete.