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01-21-2021, 08:04 PM | #1 |
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Fact or Fiction: Headlight Lens Gasket
Fact or fiction: the neoprene gasket for the headlight lens has an adverse effect on the bucket finish? It tarnishes the aluminum surface?
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01-21-2021, 09:09 PM | #2 |
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Re: Fact or Fiction: Headlight Lens Gasket
Where is there any aluminum?
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01-21-2021, 09:36 PM | #3 |
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Re: Fact or Fiction: Headlight Lens Gasket
Should be cork tho!
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01-21-2021, 09:38 PM | #4 |
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Re: Fact or Fiction: Headlight Lens Gasket
Here Here!!!......cork.
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01-21-2021, 09:40 PM | #5 |
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Re: Fact or Fiction: Headlight Lens Gasket
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01-21-2021, 10:42 PM | #6 |
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Re: Fact or Fiction: Headlight Lens Gasket
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https://www.brattons.com/newly-re-to...eflectors.html
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01-21-2021, 11:11 PM | #7 | |
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Re: Fact or Fiction: Headlight Lens Gasket
Quote:
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01-22-2021, 01:42 AM | #8 |
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Re: Fact or Fiction: Headlight Lens Gasket
The original composite cork gaskets were bonded with vulcanized latex. Vulcanization is a cross-linking process that uses sulfur. Those gaskets would, upon gradual deterioration, out-gas sulfur dioxide. Sulfur dioxide reacts with silver to produce the classic silver tarnish that starts light yellow and progresses to black.
Back in the day coal was king in heating buildings and steam powering trains and industry. Because of the high sulfur content of most coal the atmosphere had quite a bit of sulfur dioxide that also contributed to silver tarnishing. A lot of people mistakenly believe the yellow to black silver tarnish is oxidation. It is a sulfur reaction. Silver oxide is white and does not occur with atmospheric exposure at environmental temperatures. Modern composite cork is bonded with a modified butyl compound and does not out-gas sulfur compounds. They have no affect on silver. Also, today's atmosphere is very low in sulfur compounds so silver reflectors need far less maintenance than they did in the Model A era. A polychloropene ('Neoprene') gasket is relatively unreactive and does not out-gas any oxidant compounds. It will not directly react with silver or aluminum. Uncoated polished aluminum will react with oxygen in a damp atmosphere and oxidize to a grayish surface in a few months. Brattons aluminized reflectors are overcoated with a silicate compound that isolates the metal surface from the atmosphere. |
01-22-2021, 08:51 AM | #9 |
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Re: Fact or Fiction: Headlight Lens Gasket
False notion! My 45B Coupe has neoprene with aluminum reflectors since neoprenen became available. There is no evidence of tarnishing. My 190A Victoria has neoprene and aluminum since 2016 and there is no evidence of tarnishing.
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01-22-2021, 09:43 AM | #10 |
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Re: Fact or Fiction: Headlight Lens Gasket
Thank you for the information. Yes, I was referring to the reflectors. Great explanation from MikeK.
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01-22-2021, 10:40 AM | #11 |
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Re: Fact or Fiction: Headlight Lens Gasket
I had my reflectors re-silvered 10 years ago. I just opened one up for the first time late this summer to replace a bulb. They looked like I just had them done.
Using cork gaskets.
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01-22-2021, 12:54 PM | #12 |
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Re: Fact or Fiction: Headlight Lens Gasket
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01-22-2021, 07:51 PM | #13 |
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Re: Fact or Fiction: Headlight Lens Gasket
Wayne - [email protected] Craig Riker 419-290-4442 (Ohio)
Don't remember the price but it was rather reasonable and quick turn around.
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Dave / Lincoln Nebraska |
01-22-2021, 08:11 PM | #14 | |
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Re: Fact or Fiction: Headlight Lens Gasket
Quote:
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01-22-2021, 09:18 PM | #15 | |
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Re: Fact or Fiction: Headlight Lens Gasket
Quote:
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01-23-2021, 08:16 AM | #16 |
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Re: Fact or Fiction: Headlight Lens Gasket
My 31 S/W Town Sedan had silvered reflectors when I bought it 38 years ago, every car coming towards me at night flashes their lights at me. They are as bright now as they were when I bought the car. No tarnish so far, and I would pay the extra to have them done if and when I buy another model A.
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01-23-2021, 12:16 PM | #17 | |
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Re: Fact or Fiction: Headlight Lens Gasket
Quote:
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01-23-2021, 12:30 PM | #18 |
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Re: Fact or Fiction: Headlight Lens Gasket
My lights are adjusted perfect
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04-13-2023, 11:32 AM | #19 |
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Re: Fact or Fiction: Headlight Lens Gasket
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04-13-2023, 11:38 AM | #20 |
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Re: Fact or Fiction: Headlight Lens Gasket
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