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Old 02-27-2019, 01:01 PM   #1
2bz
 
Drives: 2008 Yaris 3DR Hatch MT
Join Date: Dec 2018
Location: Harrisburg, PA
Posts: 79
Door Hatch Seal Maintenance

Any suggestions on what to/not to use to clean/protect the EPDM door seals?
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Old 02-28-2019, 04:27 AM   #2
scylla
 
Drives: 2015 Yaris L
Join Date: Jun 2017
Location: Illinois
Posts: 89
Use a water based protectant like 303 Aerospace protectant. It seems to be the longest lasting protectant I have used. For this next summer I will be switching over to Surf City protectant for my interior dash and seals. It gets great reviews and I just want to try something new.

One product I won't recommend is the sil glyde grease that was touted as being great for seals. I found it to be very sticky no matter how thin I spread it.
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Old 02-28-2019, 08:32 AM   #3
ex-x-fire
 
Drives: 2010 yaris 3 door hatch
Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 238
I use dielectric grease.
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Old 03-01-2019, 03:32 PM   #4
B.B._07
 
Drives: 07 5dr
Join Date: Nov 2015
Location: YYC
Posts: 174
I like silicone spray the best, it really brings back old door seals to life. 303 is also very well regarded, mostly known for use on plastics though. The good thing about silicone spray is that it gets absorbed really well so there's no greasy residue leftover.
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Old 03-01-2019, 09:42 PM   #5
yarisbug
 
Drives: 2019 Yaris SE Hatch
Join Date: Oct 2014
Location: Canada
Posts: 12
I only use 303 for tire sidewalls, it gives a great low-gloss shine, lasts quite a while, and protects tires. I guess I should maybe use it on seals too.
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Old 03-02-2019, 08:52 AM   #6
dogsridewith
 
Drives: 2007 2-door hatchback
Join Date: Jul 2016
Location: USAnotCA
Posts: 739
If silicone is OK, any problem w/ DOT 5 brake fluid?
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Old 03-02-2019, 11:40 PM   #7
scylla
 
Drives: 2015 Yaris L
Join Date: Jun 2017
Location: Illinois
Posts: 89
Quote:
Originally Posted by dogsridewith View Post
If silicone is OK, any problem w/ DOT 5 brake fluid?
Yes! Brake fluid will destroy your paint. Use brake fluid only in your brake system.
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Old 03-03-2019, 08:05 AM   #8
dogsridewith
 
Drives: 2007 2-door hatchback
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You know that DOT 5 hurts paint?
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Old 03-03-2019, 05:26 PM   #9
scylla
 
Drives: 2015 Yaris L
Join Date: Jun 2017
Location: Illinois
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After looking it up, it would seem DOT 5 doesn't eat paint. Still, if wanting to use silicone, the spray type is extremely cheap and can be used in other ways besides as a seal preservative.
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Old 03-04-2019, 08:10 AM   #10
dogsridewith
 
Drives: 2007 2-door hatchback
Join Date: Jul 2016
Location: USAnotCA
Posts: 739
DOT5 brake fluid versus silicone spray door hatch seal

I started using DOT5 brake fluid on automobile "rubber" bushings after reading Mitutoyo MityVac instructions to use it for flushing before storage to protect the seals.
(I got lazy about that, and now need a seal kit.) I'm thinking DOT5 silicone might have fewer additives than are put in the spray-can silicones...and I dislike spray cans when there is another way to apply.

On this Yaris, I know I waxed the door frames. And a good chance I used "Corrosion Block" (fragrant green snake oil from Florida) on the frames and/or gaskets.
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