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Old 25-09-2017, 10:50 PM   #30
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Location: Inverclyde, Scotland
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I know it's slightly different from PNS but SONAX Xtreme Protect & Shine Hybrid NPT + BSD is my go to sealant for winter/long term protection.

Last winter, other than build-up of tar spots, there was almost no drop-off in performance when using the two products together. They really are great products.

I applied NPT to my in-laws cars back in April and they've had nothing other than a basic wash with unknown shampoo since. You can still see rain beading well on the surface.
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