ONR and 845

**Elo76** · 02-11-2021, 01:06 PM

Is there still an issue with the newest version of ONR removing/degrading Collonite 845 prematurely?

I've read some past treads about it and am wondering if it was still a problem.

**mwoolfso** · 02-12-2021, 06:18 PM

I've never heard about ONR removing or degrading 845. That said, ONR Wash & Wax would add another layer of protection on top of 845 (not terrible for a period of time). And straight ONR Rinseless just has polymers and they don't last very long at all on paint.

In fact, I would say you will do more damage to a wax/sealant layer with a MF towel than you would with either any ONR product.

**PaulMys** · 02-12-2021, 06:23 PM

No way in hell would ONR (new or old) remove or degrade 845.

**Elo76** · 02-13-2021, 08:21 AM

Not sure if we are allowed to post links to other forums, but there are multiple posts about this happening on autopia. Just thought I would ask here because it seems like its two different worlds of thought sometimes.

**TroyScherer** · 02-13-2021, 10:09 AM

I haven’t used #845 in a while so I can’t comment on the current status. But I can confirm for the others / doubters that in the past ONR and #845 didn’t really play well together. ONR seems to really degrade the #845 protection to the point where when using #845 I would simply not use ONR.

If it’s still a concern or issue I would suggest the McKees N-914 as an alternative to ONR. There are many that find N-419 equal or better.

**damonb10** · 02-13-2021, 04:10 PM

I use 845 as my lsp and pretty much exclusively wash my car with onr. I've never seen any degradation of the 845 and still get 5-6 months out of it.

**mwoolfso** · 02-13-2021, 10:49 PM

Originally Posted by TroyScherer

I haven’t used #845 in a while so I can’t comment on the current status. But I can confirm for the others / doubters that in the past ONR and #845 didn’t really play well together. ONR seems to really degrade the #845 protection to the point where when using #845 I would simply not use ONR.

If it’s still a concern or issue I would suggest the McKees N-914 as an alternative to ONR. There are many that find N-419 equal or better.

OK, this is different. I recall reading a long time ago that ONR (pre-2013) and 845 didn't play well when 845 was placed on top of an ONR treated surface. I'm not sure about today but in general 845 being a hybrid sealant, you want this to be the first product on virgin paint. After 6-12 hours of curing ONR and other topper products won't affect 845's durability.