It is easier to use spray contact adhesive. Use 3M 90, not 3M 77.
On Thursday, April 29, 2021 at 6:11:12 AM UTC-7, Guy Acheson wrote:
I used Goo Gone, waited an hour and used a paint scraper.
Then you have to wash off the Goo Gone.
Was not that big a deal.

Taping off the areas for the new padding and painting on the rubber cement was intoxicating.
Must do that outside or the fumes will become overwhelming.
New glued on outdoor carpet is still holding strong.