Hairline cracks on gelcoat

[patmacdonald]

I have a 1976 C&C sloop. Took off the bottom anti fouling over the winter & noticed a bunch of hairline cracks all over the bottom. Some of these cracks also go up the side just past the blue paint line on the waterline of the boat
You can barely feel them when u rub your finger over them...see picture attached
Any suggestions as to



]

whether one should b concerned? If so. What to do? Is this typical on a fresh water lake sailboat that is winterized in a barn up here in Canada?
I will be redoing the anti fouling this spring with Intralux VC17 M
Thanks

 

[BillyK]

I have a 1976 C&C sloop. Took off the bottom anti fouling over the winter & noticed a bunch of hairline cracks all over the bottom. Some of these cracks also go up the side just past the blue paint line on the waterline of the boat
You can barely feel them when u rub your finger over them...see picture attached
Any suggestions as to

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]

whether one should b concerned? If so. What to do? Is this typical on a fresh water lake sailboat that is winterized in a barn up here in Canada?
I will be redoing the anti fouling this spring with Intralux VC17 M
Thanks

I have the same exact thing.. I sanded, put a fresh barrier coat, ablative coat, and dropped her in.. The barrier coat should protect from water intrusion. At least that's my thought based on what it said on the can.