Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
I have had the same problem trying to attach velcro on the bulkhead in the cabin. I recently used Alien tape to the bulkhead. I used it to secure the velcro to my solar controller. So far it is holding. We will see.
Are you referring to the wall dividing the cabin and the head? Your reference to "above the waterline" suggests you may be referring to something else. ??
You mean the aft exterior face of the cabin? (That is a bulkhead, but most "bulkhead" discussions here are about the interior.) Are these rod holders for storage or for fishing, and exactly where in/on the boat?
Exterior hardware that gets any stresses generally should be through-bolted--not screwed on--and bedded with caulk or butyl tape.
Dave Bristle Association "Port Captain" for Mystic/Stonington CT PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired), Now on Eastern 27 $+!nkp*+ Sarge
I'm also unclear about what you are attaching to. My understanding was the bulkhead was the wood panels separating the sections fore and aft in the boat.
I've had good luck using small, short stainless steel machine screws attaching items to the fiberglass liner. I predrill a hole in an innocuous place to check the correct drill size for the screws Im using. The drill size needs to be very close to the screw size. it the holes are too small the screws crack the resin as they go in. i put tape on the drill bit to make sure Im drilling to the correct depth.
Some people fill the holes with an epoxy before screwing in the screws to seal the holes and prevent water ingress into the liner. There are several thickened two part resin glues out there.
Ray in Atlanta, Ga. "Lee Key" '84 Catalina 25 Standard Rig / Fin Keel
Are you referring to the wall dividing the cabin and the head? Your reference to "above the waterline" suggests you may be referring to something else. ??
I am referring to the inside of the boat. Between the bow and the sink area
1998 Catalina 250WK Ravaging Albemarle Sound,NC
I spent most of my money on boats and beer, the rest I just wasted.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.