Sealing high-volume chainplate deck slot

[Bowdrie]

Regarding sealants, that situation is better served by using a polysulfide rather than a polyurethane.
If easy future removal/inspection/replacement is wanted, then simply packing the void with "Dolphinite" is a good way to go.
In any case clean surfaces seal better.

[LifesBetterWhenYoureBeating]

Originally Posted by Bowdrie

Regarding sealants, that situation is better served by using a polysulfide rather than a polyurethane.

If easy future removal/inspection/replacement is wanted, then simply packing the void with "Dolphinite" is a good way to go.

In any case clean surfaces seal better.

What are common polysulfides? All the sealants I'm familiar with seem to be polyurethane

[Bowdrie]

Originally Posted by LifesBetterWhenYoureBeating

What are common polysulfides? All the sealants I'm familiar with seem to be polyurethane

The most common is "Life-Calk".
https://www.westmarine.com/boatlife-...7_003_003.html