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Re: M40 or UP for door rubber / weather seals?
I use M40 on all of my weatherstripping. Works good IMO.
I use M40 on all of my weatherstripping. Works good IMO.
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Re: M40 or UP for door rubber / weather seals?
It's not clear to me that EPDM rubber, which is what is used in weatherstripping and door seals, needs anything to "protect" it. The stuff is made to withstand the elements over a long period of time.
Following the recommendations of the Honda S2K manual, I have been using the Shin Etsu silicone grease on all seals twice a year over the past several years. The purpose of this grease, so I have been told, is to reduce noise and prevent sticking during the winter months. But I dislike intensely the grease marks that are left on my windows. Last spring I used M40 to clean the seals, and I used it again around mid-summer. I then returned to the silicone grease in the fall to prepare the seals for winter. I intend to use M40 again this spring.Swirls hide in the black molecular depths, only waiting for the right time to emerge and destroy your sanity.
--Al KimelComment
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Re: M40 or UP for door rubber / weather seals?
Yeah, I alternate back and forth with the silicone stuff and a dressing.2017 Subaru WRX Premium - WR BlueComment
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Re: M40 or UP for door rubber / weather seals?
The main concern I have is the winter sticking as I found it doing that a few times this year, especially when it was cold. The seals are now well over 15 years old. I inspected them and only noticed one or two small tears. But they did look a bit 'dry' with some wrinkles, especially on the drivers side front door. I know I can still get factory replacement seals, but I'd rather just keep these good. And I'll spare no expense on product to do so. Just looking for the best.
Huntsville's Premiere Car and Bike e-magazine: www.huntsvillecarscene.comComment
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Re: M40 or UP for door rubber / weather seals?
I really only put M40 on my Mustang weather stripping, because the doors don't have a frame around them, so the weather stripping is exposed to the sun 24/7 as there is nothing "covering" it, and CA sun is harsh.
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Re: M40 or UP for door rubber / weather seals?
GM recommends silicone grease on all weatherstrips. Back in the 70's, when Armor-All became popular, it was said to cause premature aging on the then-new softer foam weatherstrips. Since the grease is hard to apply thin and even, I've always used liquid aerosol silicone, applied liberally with a well-soaked rag. Applied regularly, the rubber stays a nice matte black and I don't have sticking problems in winter.
BillComment
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