Would you barrier coat a 20+ y.o. 19' hull?

[fatire]

Hi,
New owner of an 1989 Tournament 19.
Had all the bottom paint removed by a media blasting process.
Now I'm getting mixed opinions on barrier coating.
Some highly recommend, others say it's overkill for a small boat of this age.
There are multiple places on the chines requiring MarineTex repair.
Oh and I'm on NH coast with a May-Oct season.
Thanks for weighing in!

Also if you own a 19 and recall how much barrier coat or paint needed (or just the square ft. calc.) I'd love that data.

Thanks much,
Steve
NH

 

[ctcbtr]

all the marine pros i know would say soda blast, interprotect barrier coat, bottom paint, why find out later you wish you would have put it on? Will do my 252gt that way next year

 

[richie rich]

Go to Interlux's web site and look at the primer section...they have product data sheets which tell you how and how much to use including calculating the amount to use,

 

[uncljohn]

Forget about the size. Its a Grady. Its also old enough that it was made from materials prone to osmotic blistering (if left in the water). Most small boats are trailered or kept on lifts, so a barrier coat is not needed. If you keep it wet-slipped, then you need a barrier coat. Most boats that age don't have too much life left, but again its a Grady.

I did my 228 2 years ago, soda blasted, ground out some blisters, filled them, barrier coated w/ Interprotect.

I only got 2.5 coats on my 228 with 1 gallon of Interprotect, and you really want 4-5 coats of a barrier coat, so unfortunately you probably need 2 gallons. Read all instructions carefully, buy all the indicated solvents & thinners, and pay particular attention to the timing between coats, most importantly the final barrier coat and initial bottom paint coat.