Old fiberglass hull foam

[sqdqo]

In an older Grady (1978) they used polyurethane in the hull. Would this foam have been a closed or open cell type? I am wondering if a person should be concerned about purchasing a boat this old and possible water logged foam or other unseen deterioration. Structurally the hull and deck seem solid.

 

[tashasdaddy]

Re: Old fiberglass hull foam

yes, you should be concerned, especially a boat that age.

 

[sqdqo]

Re: Old fiberglass hull foam

Explain!

 

[qaztwo]

Re: Old fiberglass hull foam

'78 thats not old, got a '76 searay. The foam was completely saturated. Any wood that was in contact with the foam turned to mush.

 

[Bondo]

Re: Old fiberglass hull foam

Explain!

Ayuh,......

The Foam used at the factory is the same foam used in rebuilds,.....
Closed Cell foam......

But,.....
With Time,+ Water,........ ALL of it becomes a Sponge.............

 

[sqdqo]

Re: Old fiberglass hull foam

Will a surveyor uncover wet foam or rotten stringers?

 

[tashasdaddy]

Re: Old fiberglass hull foam

if he is worth his money he should, or atleast the signs of it. you have to drill a hole in the deck to verify.

 

[njlarry]

Re: Old fiberglass hull foam

Your other option is to weight the hull. Saturated foam will add hundreds of pounds. Could also drill hole at low point on outside of hull.