Gluing Silicone Foam Rubber To Aluminum... - FFCars.com : Factory Five Racing Discussion Forum

 
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post #1 of 6 (permalink) Old 04-21-2017, 06:49 AM Thread Starter
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Gluing Silicone Foam Rubber To Aluminum...

I recently bought some new weather seals for my side windows, thinking that it was self adhesive. As it turned out it is Silicone foam rubber and has no adhesive (McM-C No. 9141K116).

I tried Scotch double stick tape, 3M Super 77 spray glue, a tube of contact adhesive and some E-6000 Silicone glue, and I roughened the surface to be bonded with sand paper. Not one of those products would adhere to the Silicone foam.

I also bought some "D" shaped foam for new door seals, it is made of the same stuff, and also does not have adhesive on it (McM-C No. 9141K157).

I contacted McM-C and they said I could return them if I couldn't find an adhesive (they didn't have a solution but refereed me to a web page that was no help.

I'm trying to bond to polished aluminum (window frames) which I did sand to a rough finish after the first failures and to the body (clear coat paint) for the door seals.

I've researched a little on the web with no better results.

Any advice or recommendations?

Regards, Rick.

Driving a car like this is about as much fun as you can have with your clothes on.

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post #2 of 6 (permalink) Old 04-21-2017, 02:20 PM
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Rick,

From past experience what you bought is meant to be mounted between a surface and a screwed down strip, hence the flange. I've never really tried to glue any silicone strip of that type, but would guess its probably a losing battle. I think your best bet would be take them up on the return offer and get some regular rubber material that has adhesive backing already applied. Back when I was still working I have used similar types of stuff you got on large lab ware washing machines and the like where regular rubber wouldn't hold up for long due to the heat but it was always screwed down.

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post #3 of 6 (permalink) Old 04-21-2017, 02:41 PM
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I try to buy all of my weather stripping from automotive sources like Soffseal or Steele Rubber Products.

Soffseal has a lot of universal seals. It appears like the dimensions are only shown in their paper catalog.

The E1077 is shaped like yours, but slightly thinner at 7/32" and not as wide, at 3/8". The E1085 has the 1/4" thickness, with 3/8" width.

Some of the extrusions are available with self adhesive. Online, some numbers are shown multiple times, in different precut lengths.

SoffSeal Weatherstripping & Rubber Details
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post #4 of 6 (permalink) Old 04-21-2017, 03:17 PM
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Bought my D bubble from McM 11 years ago and it is still holding fine. As mentioned above, use a regular rubber with the adhesive already applied. Silicone is known for nothing sticking to it. (Except mold in the shower evidentally.)
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post #5 of 6 (permalink) Old 04-21-2017, 10:52 PM Thread Starter
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Thought So...

Thanks for the confirming info.

I thought I was getting adhesive backed weather strip. I looked at the pictures and saw a profile I liked with out noticing that it was plain, let alone Silicone (which I have not worked with before).

I'll take them up on the return or exchange, and do a better job of looking for the proper product.

Regards, Rick.

Driving a car like this is about as much fun as you can have with your clothes on.

"Too Much Is Just Right" $helby
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post #6 of 6 (permalink) Old Yesterday, 04:30 PM Thread Starter
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Customer Service...

To finalize my adventure. I contacted McM-C to arrange for the return of the pieces I didn't use.

They accepted the return and credit of the full order (even the part that I tried to use and cut to size, they said to not worry about sending that piece back) and they are also picking up the return shipping costs.

I've been doing a small amount of business with them for several years dealing with my tops, but this is above what I expected for this event.

Regards, Rick.

Driving a car like this is about as much fun as you can have with your clothes on.

"Too Much Is Just Right" $helby
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