For one who knows, the 260 bottom came from the factory unpainted unless the dealer specified bottom paint. Then Hunter would accomodate the dealer. However, most boats were shipped without being painted. The bottom of course is gelcoat.
The stripes on the side of the hulls are reffered to as boot and cove stripes. For ease of discssion, I will only refer to the lower stripe only. Generally, the lower stripe is a vinyl tape that is usually anywhere above the water line by 1-2 inches as a rule of thumb. However, I saw that a couple of times painted in. Sometimes you will see blue gelcoat vs. vinyl tape.
The gel coat is designed as a barrier so water will not penetrate thru to the hull. Therefore, they are against sanding unless Hunter was notified first that the dealer was going to do that in order to apply epoxy barrier coats to keep the warranty validated.
If Hunter ever painted the bottom at the factory, it was Petit Trinidad which is a good anti fouling paint. The only problem with that paint, should the boat come out of the water and remain out of the water for over 60 days, the anti fouling properites will no longer be effective when placed back into the water after two months out. It is a good paint if left in the water all the time in salt water. Trinidad can be over kill in an inland lake except up north where you have zebra muscles.
If you are planning to trailer the boat all the time without mooring it in the water permanently, my suggestion is not to paint.
From experience, I generally did not apply epoxy barrier coats as vinylester resins was used in the gel, make up of gel coat plus a coating of vinylester coatings behind the gelcoat since there was no or very little blistering. If a few occoured, it was easy to fix.
I would pop the blister out using a dremel and then drying out with acetone. I used Water Tite epoxy as it is a darn good filler to use underwater for repairs. I would then apply barrier coat over the repaired spot and then apply bottom paint.
To keep from sanding the bottom in order to apply bottom paint, I would dewax constantly getting rid of the cloths as you are trying to get the mold release wax off the hull. I use to get the yellow box with soft wipes which were excellent to use costing about $10-$12. I used the dewaxer by Petit. Although the directions said one cleaning/wipe down was only needed, I did clean three times to make sure the mold release wzx was off the hull. I then applied Petit's non sanding primer. Although the instructions said one thing, I would always apply the first coat while the non sanding primer was still a little tacky which worked well for me over the years and in most cases it held. I would let the first coat of anti fouling paint dry thourghly and then apply a second coat and let dry. I would apply a third coat around the water line which is taped off. Make sure you use the blue tape and press hard against the area where the paint touches it. In addition, pull the tape off before the paint fully drys as it can pull paint off if the paint is fully dry.
If the boat was going to stay in all the time, then choice of any paint was ok but for coastal, I used Petit Trinidad. If you plan on taking the boat out for the winter and prefer not to repaint the following season, then use a paint where the anti fouling porperties will not dry out. Examples include Interlux Micron CSC and West Marine CCP. The drying times for these softer paints vs a harder paint like Trinidad will take longer to dry.
When placing the boat back on the trailer with any paint still green, I always applied plastic to the trailer bunk boards to no fuzzy wuzzy carpet critters would be embedded into your new bottom paint job.
I took too long but hopefully you gained some information.
Crazy Dave Condon