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3 step rustseal system vs rubber undercoating

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I am looking to protect the frame and underside of the body on my jeep wrangler. I have previously used the 3 step rust seal system. Looking at your site you also have a dedicated rubberized/asphalt undercoating. Would one of these be better than the other? Or are they to be used together. I was planning to do the rust seal system with a blacktop top coat on my frame.

Both UnderCoat Asphalt and UnderCoat Rubberized are incredibly durable. As far as appearance, the rubberized version is a slightly smoother texture and the asphalt is more of a gritty texture. It really does seem to be personal preference as to which one you choose.

Please let us know if that helps and if you have any additional questions.

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Good information to know, but not what I was asking. I mean comparing the two, the rust seal 3 step system (clean,blast, seal) VS the undercoating (whether it be asphalt or rubberized) is one better than the other between the 3 step system or undercoating paint.

That is a great question. The KBS 3-Step System provides the best rust protection, so if rust protection is key, you would be best to do the KBS 3-Step System. Most of our customers use the KBS 3-Step System and then the KBS UnderCoat over that to give it a nice textured look.

The KBS UnderCoat does provide a degree of rust protection, but for the longest lasting rust protection, please choose the KBS 3-Step System.

Please let us know if that helps and if you have any additional questions.

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