Glad to hear you've got it sorted, I assume the truck is already painted! That Armorall could give a painter a few headaches! dang
I agree with wilbur, I just use plain Glass cleaner to 'lube' the rubber.
If you haven't got the lock strip fully installed you may be able to 'drag' the two ends together to close the join.Be careful not to slip!! ,
Well done Mrs Redgreen!

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.