Re-glueing davit pads - best way to do?

[EugeneR]

After 5 years, the polymarine 2-part glue holding the davit pad to the Waveline PVC dinghy is starting to let go.

What is the best way to re-glue the pad? Do I remove the old glue first? If so, what is the best way to remove the old glue first?

Or would re-glueing on top of the old glue, be OK?

Any advice appreciated...

 

[ghostlymoron]

Gluing onto existing glue never works. You'll probably have to use mechanical methods to remove the old stuff followed by a cleanup with acetone (check suitability first).

 

[Poignard]

Years ago I carried out a successful repair using adhesive bought from a company called IBS (Inflatable Boat Supplies).

https://www.ibsparts.co.uk/repair-kits.html

You must scrape off all the old adhesive first.

 

[VicS]

After 5 years, the polymarine 2-part glue holding the davit pad to the Waveline PVC dinghy is starting to let go.

What is the best way to re-glue the pad? Do I remove the old glue first? If so, what is the best way to remove the old glue first?

Or would re-glueing on top of the old glue, be OK?

Any advice appreciated...

See the Polymarine advice guides https://www.polymarine.com/advice/

Note that the primer / solvent 2903 will reactivate old PVC glue and is essential for priming PVC ( it contains tetrahydrofuran which is a solvent or PVC)
Despite this I would remove as much of the old glue as possible.

 

[Graham376]

Gluing onto existing glue never works. You'll probably have to use mechanical methods to remove the old stuff followed by a cleanup with acetone (check suitability first).

+1

On advice from Polymarine, I use a sanding flap wheel in the drill at fairly low speed followed by acetone to clean off the old adhesive but re-fixed fittings often come loose again after a year or even less in hot climate.