Bubble on hull of 48

[Micj81]

I have a 2007, 48 Sundancer. While out of the water two bubbles / blisters were seen , in the same location on both the port and stb sides on hull. They are on the aft of boat approx where the bulkhead is that seperates the salon from aft cabin. Port side bubble (delam) was approx 48". Stb side was approx 36". From Keel up they are between the 2nd and 3rd stringer. Moisture readings show normal. The marina where the boat was pulled said they have seen 2 or 3 48's with this issue. My question: have others seen in this before? How extensive was repair and approx cost? Apprecaite the imput from others who may have had similar experience. Thank you, MJ

 

[Skybolt]

@Micj81 Usually blisters are only on the bottom of a boat under water. Water is drawn through the gelcoat and settles between the gelcoat and glass forming a small blister. Fairly common in boats in general not just Sea Rays. To me it sounds like something is pushing through that area, it would be rare that a blister would form above the waterline.

You state 3-4' above the keel, that would be the center line of the bottom of the boat. Are these above or below the waterline?

If above the waterline, it will be considerably more to fix. Also it is common for the repair to be finished up with paint, don't let them do that and insist they use gelcoat. As for the cost, that is going to vary widely depending on the area and skill set of the person doing the repair. But if above the waterline I would suspect something in the range of 1500 ea. If under water around half, no gelcoat matching would be needed as the barrier coat would cover the repair.

 

[ocgrant]

Yep fixed mine when I bought it

https://www.clubsearay.com/index.php?threads/48-da-owners-club.84284/page-25

Never returned and no more showed up

 

[Skybolt]

Yep fixed mine when I bought it

https://www.clubsearay.com/index.php?threads/48-da-owners-club.84284/page-25

Never returned and no more showed up

That link speaks of your HDMI cable run ...

 

[Timeflys]

Scroll to bottom of the page 25 that the link takes you to….

 

[Micj81]

@Micj81 Usually blisters are only on the bottom of a boat under water. Water is drawn through the gelcoat and settles between the gelcoat and glass forming a small blister. Fairly common in boats in general not just Sea Rays. To me it sounds like something is pushing through that area, it would be rare that a blister would form above the waterline.

You state 3-4' above the keel, that would be the center line of the bottom of the boat. Are these above or below the waterline?

If above the waterline, it will be considerably more to fix. Also it is common for the repair to be finished up with paint, don't let them do that and insist they use gelcoat. As for the cost, that is going to vary widely depending on the area and skill set of the person doing the repair. But if above the waterline I would suspect something in the range of 1500 ea. If under water around half, no gelcoat matching would be needed as the barrier coat would cover the repair.

@SKybolt More clarity - they are 36" and 48" long between the stringers. below waterline.

 

[ocgrant]

 

[ocgrant]

There was no water present. Just a prep issue between layers. cut t out prep the surface better and re-glass. Simple fix think I spent $1500 for the whole repair.

 

[Micj81]

View attachment 152824View attachment 152826View attachment 152827View attachment 152825View attachment 152823

Thanks for sharing the pics. Fortunately moisture readings were normal. I'm guessing an air void from factory and just now showing up. Thanks again!