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Door rubber seals - Which product (Sonax, Nextzett, BMW, Caramba)?

18K views 28 replies 12 participants last post by  J55TTC  
#1 ·
Hey Guys,

I'd like to buy a dedicated product for the rubber seals for my car. As I know, nowdays this seals are made from EPDM, not from natural rubber. Which product would be the best for them?

In reviews I have seen Nextzett Gummi Pflege is good, but that I can not purchase in my country.

I can order Sonax Gummi Pflege, Caramba Gummi Pflege and BMW Rubber Care. Have you got some expreiences with them? Which is the most similar to Nextzett? In a video I have seen Nextzett is a white, bit creamy liquid, with water based silicones.

Sonax is also water based, but is it also a bit creamy or its rather a milky type?
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BMW's rubber care I can not find anything, neither ingredients or the consistency or the colour of it, so I don't know if its water based, or solvent based, or its use glycerin.
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Caramba Gummi Pflege uses glycerin, instead of water based silicone. But I dont know which is better for EPDM rubber, glycerin or water based silicone (PDMS).
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#10 · (Edited)
I have nextzett, Sonax, but not the bmw ones
Nextzett as you know is a white liquid
Sonax is a transparent gel, so not what you’re looking for, it doesn’t feel or work like nextzett

BMW, not sure, but most of their stuff used to be made by Sonax

Can you not find Nextzett on eBay or eBay.de?

The closest thing I have used in look and consistency is 3M Tyre Restorer (black 500ml trigger bottle), is that available in your country?

I have the Swissvax and it is very good

303 is a good suggestion, you can buy that in very small bottles as well. You have to buff it in though; don’t let it dry on its own.

Another thing I would recommend is Koch Chemie PlastStar (PS), but it’s a solvent type dressing, not water based, probably not what you’re looking for. They specifically state it can be used on rubber seals, inside and out. They also do a PSS which is silicone free, but haven’t tried it.

As to epdm vs rubber, not sure of the differences when using a dressing, I guess everyone assumes that there is no natural rubber any more.

Can you go into a BMW dealership and see if they can order you a bottle; you don’t have to buy it if it isn’t what you were expecting (I.e. liquid vs gel)? I’ve found multiple part numbers for BMW dressings so perhaps there is one that is what you are looking for. They used to have something called “plastic care emulsion” which was awesome, but don’t sell it any more.
 
#12 ·
I have nextzett, Sonax, but not the bmw ones
Nextzett as you know is a white liquid
Sonax is a transparent gel, so not what you're looking for, it doesn't feel or work like nextzett

BMW, not sure, but most of their stuff used to be made by Sonax

Can you not find Nextzett on eBay or eBay.de?

The closest thing I have used in look and consistency is 3M Tyre Restorer (black 500ml trigger bottle), is that available in your country?

I have the Swissvax and it is very good

303 is a good suggestion, you can buy that in very small bottles as well. You have to buff it in though; don't let it dry on its own.

Another thing I would recommend is Koch Chemie PlastStar (PS), but it's a solvent type dressing, not water based, probably not what you're looking for. They specifically state it can be used on rubber seals, inside and out. They also do a PSS which is silicone free, but haven't tried it.

As to epdm vs rubber, not sure of the differences when using a dressing, I guess everyone assumes that there is no natural rubber any more.

Can you go into a BMW dealership and see if they can order you a bottle; you don't have to buy it if it isn't what you were expecting (I.e. liquid vs gel)? I've found multiple part numbers for BMW dressings so perhaps there is one that is what you are looking for. They used to have something called "plastic care emulsion" which was awesome, but don't sell it any more.
Thanx for your answer! :)
Nextzett I can find on ebay, but with post it would be 17 ÂŁ, while BMW or Sonax 6 ÂŁ.

Which Sonax do you have, the black one, or the blue one? Cause for the black bottled one I thought that is also a white liquid.:doublesho (I attached 2 photos)

Koch Chemie PSS I was checked, and it is also solvent based according to its data sheet.

As I see EPDM is perfectly compatible also with Glycerine and Silicone.
 

Attachments

#14 ·
If you look at this link
https://www.sonax.com/Product-Searc...n)/12977-SONAX-Rubber-protectant4/(show)/parent-product#collapse-parent-product
And choose all sizes
You can see it is the same product, but starting in a small 100ml bottle, then an aerosol spray, then larger sizes
They are the same product
The aerosol is very good on a cloth, and then wipe it on the rubber seals, better than using the small bottle and applicator (see the video)
Very good on tyres as well

But looking at my bottle of 100ml, definitely a gel.
 
#17 · (Edited)
It's more of a milky white liquid. Not liquid, but a runny gel.
I'll take a pic in a minute
Image


The aerosol I have sprayed and it came out white, then went clear immediately. It has the same smell and feeling as the gel on my fingers.

I have found 5 bottles of 1z Gummi in my garage, send me your address and I'll send you one.

If Gyeon preserve is for rubber/vinyl, I would say yes. If you want to test it, try it in your boot/trunk rubber first.
 
#22 · (Edited)
Swissvax seal feed is nice enough, just too expensive. Stresses you out if you pour too much on your app sponge.

Reminds me of using Krytox? It was some special stuff for convertible hood seals which was ÂŁ30 for 10ml. Probably more expensive now.

I’m experimenting with CarPro Perl on tyres at the moment at 1:1. I may have to go neat or 2:1. I have a feeling that I can use the same ratio for seals. So I can do the tyres and seals with the same bottle, and look at nice fresh rubber every time I get in the car.
 
#26 ·
Swissvax seal feed is nice enough, just too expensive. Stresses you out if you pour too much on your app sponge.

Reminds me of using Krytox? It was some special stuff for convertible hood seals which was ÂŁ30 for 10ml. Probably more expensive now.

I'm experimenting with CarPro Perl on tyres at the moment at 1:1. I may have to go neat or 2:1. I have a feeling that I can use the same ratio for seals. So I can do the tyres and seals with the same bottle, and look at nice fresh rubber every time I get in the car.
I use PERL 1:1 on rubber trim works well,
 
#24 · (Edited)
I found Seal Feed to be OK, not a panacea for all the woes of rubber trim.

e.g. 10 yr old BMW coupe, frameless doors. Dried out rubber, applied seal feed many times. Looks fantastic but it doesn’t solve the problem, and they eventually go back to the original dried out state over time. I agree if you use it on a car where the rubbers are good, it will keep them that way indefinitely. But it doesn’t repair any neglect that has been done. Nothing I have found can repair damage, so keep on top of it guys...

If anyone has found something, or makes this stuff for a living, I would be very interested in a repair product and not a temporary fix.
 
#28 ·