Neoprene Boot Foot Repair

[Old406Kid]

The seam tape in the heel of the boot feet of my breathable waders has come loose in areas and the last time out I had a slow leak in one of the feet.
Looking for repair suggestions before I go gooping things up with something that doesn't work and makes a mess.
I have some unopened Aquaseal +FD but again unsure if there might be better options.
Thanks for any and all suggestions.


Edit; With them inside out, I just filled them to just above the seam where the boot feet meet the breathable fabric and had slow leaks in both feet at taped areas.
Any product suggestions for replacement heat activated seam tape? I have a monocote iron with temp control for my RC plane fabric so would plan on using that to remove and replace.

 

[SurfnFish]

Don't use the iron on, it will not hold.
Use Aquaseal, apply a thin coat to surface and tape, wait ten minutes, apply another thin coat and wait ten more minutes and then position the tape and press firmly back onto the seam.

 

[Old406Kid]

I finally got around to the wader repair of two pairs of waist highs with 4 leaky feet.
Instead of filling the booties with water to relocate the leaks I decided to try our battery powered leaf blower and a spray bottle of soapy water. Sticking the blower down each leg and clamping the fabric around the exhaust with my hand fully inflated the foot and a little spray or two easily located the problem areas.
The seam tape was partially loose in the suspected areas so I pulled the tape up from the middle and worked both ways until I got to areas where the tape was still fully adhered. Next was to remove all of the old adhesive followed by ironing down all of the remaining seam taped areas for extra insurance. Before applying the new tape I also ran a thin bead of Aquaseal over any of the exposed sewn seam areas.
After slowly increasing the iron setting I found 180C/350F to be hot enough to activate the adhesive on the new tape but still safe on the neoprene. (My iron has a thin flannel cover on it but using parchment paper or a thin cloth between the iron and tape to avoid potential damage to the neoprene was recommended in a number of searches that I read.) I also found that a small block of wood on the inside of the booty for backing was helpful.
*** I was initially disappointed with the adhesion of the seam tape but discovered that it took much longer and more heat to fully activate the adhesive than I thought.
After allowing an ample time for curing, the leaf blower/soapy water test didn't show any leaks but I have high hopes that tomorrow's on the water test will be the real deal.

Here's a link to the tape I used.

https://www.amazon.com/dp/B08PFLYSLT?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

 

[BriGuy]

I finally got around to the wader repair of two pairs of waist highs with 4 leaky feet.
Instead of filling the booties with water to relocate the leaks I decided to try our battery powered leaf blower and a spray bottle of soapy water. Sticking the blower down each leg and clamping the fabric around the exhaust with my hand fully inflated the foot and a little spray or two easily located the problem areas.
The seam tape was partially loose in the suspected areas so I pulled the tape up from the middle and worked both ways until I got to areas where the tape was still fully adhered. Next was to remove all of the old adhesive followed by ironing down all of the remaining seam taped areas for extra insurance. Before applying the new tape I also ran a thin bead of Aquaseal over any of the exposed sewn seam areas.
After slowly increasing the iron setting I found 180C/350F to be hot enough to activate the adhesive on the new tape but still safe on the neoprene. (My iron has a thin flannel cover on it but using parchment paper or a thin cloth between the iron and tape to avoid potential damage to the neoprene was recommended in a number of searches that I read.) I also found that a small block of wood on the inside of the booty for backing was helpful.
*** I was initially disappointed with the adhesion of the seam tape but discovered that it took much longer and more heat to fully activate the adhesive than I thought.
After allowing an ample time for curing, the leaf blower/soapy water test didn't show any leaks but I have high hopes that tomorrow's on the water test will be the real deal.

Here's a link to the tape I used.

https://www.amazon.com/dp/B08PFLYSLT?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Please report back. Thanks!