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| Re: [GMCnet] gaps where the awning meets the roof [message #322383 is a reply to message #322379] |
Sat, 19 August 2017 21:53   |
emerystora
Messages: 4442
Registered: January 2004
Karma:
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Senior Member |
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Perhaps it depends on the type of paint used.
I used PL polyurethane on a roof seam over ten years ago. I painted it with Krylon acrylic spray from a can. It was Antique White which was a great match to my GMC paint.
I was on the roof last week and the paint is still holding very well to the half inch wide band of polyurethane caulk.
Ken, what type of paint did you use? Strange that we would have such different results.
Emery Stora
77 Kingsley
Frederick, CO
> On Aug 19, 2017, at 8:13 PM, Ken Henderson wrote:
>
> Not often Emory and I disagree, but I must this time: PL Polyurethane IS
> paintable -- meaning that painting won't hurt the caulk. BUT, the paint
> will NOT stick to the caulk (permanently).
>
> Back in '02 or so when I was getting ready to have the GMC painted, I
> contacted PL and was told that after 7 days of curing, even automotive
> paint would not hurt the caulk, so I used a lot of it on GMC seams, such as
> around my permanently mounted fender flares and the rear "hatch". After
> about 5 years, those seams became the only real flaws in my Topeka Graphics
> paint job. And after 15 years, those are STILL the main flaws -- there's
> NO paint adhered to any of those seams. Looks terrible from even 10'.
>
> JWIK,
>
> Ken H.
> Americus, GA
> '76 X-Birchaven w/Cad500/Howell EFI & EBL,
> Manny Brakes & 1-Ton, etc., etc., etc.
> www.gmcwipersetc.com
>
>> On Sat, Aug 19, 2017 at 4:33 PM, Emery Stora wrote:
>>
>> Use polyurethane caulking from Home Depot. It is called PL sealant. It
>> has a Loctite label.
>> It comes as window/door sealant, concrete sealant, foundation sealant, and
>> others. The only difference is the color.
>> I use the black around windows and the wheelwell liners. You’ll probably
>> want to use the wire above the awning rail.
>>
>> Once it cures for a few days it is paintable.
>> It will not degrade in the sunlight as silicone sealant does.
>>
>> Put masking tape on both sides of the crack you want to seal. Run the
>> sealant in with the tube and then you can smooth it level with the tape
>> with your finger.
>> Before it cures pull off the masking tape and you will have a nice clean
>> edge.
>>
>> Removing the screws in the rail is really difficult and you’ll probably
>> break most of them and have to drill them out. Using sealant is a lot
>> easier.
>>
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