I purchased my new-to-me 1993 Catalina 320 in Santa Cruz CA in July 2024. It was structurally very sound, and had both a new mast and rigging, and a new Volvo MD2030 (a rebranded Perkins M30) installed in 2004. However, all of the boats systems had been neglected for sometime. This blog will record all of the upgrades performed to bring the boat up to scratch to use as a reliable coastal (and sometimes blue water) cruiser.

Wednesday, April 22, 2026

Haul Out and Bottom Paint

I got the boat hauled at the Berkeley Marine Center last Summer to do a bottom job. 

All is revealed at the BMC

The bottom had not been painted for some time, and successive cleaning jobs had left the hull with no remaining antifouling action.

A filled blister

I sanded the entire bottom smooth and uncovered a couple of surface blisters. These were sanded out to solid glass and then filled with West Epoxy and 406 filler.
Dirty work

I cleaned and lightly sanded the prop and shaft before fitting new zincs and painting with Pettit Prop Coat Barnacle Barrier. I don't know how effective this product is - time will tell.


The water bearing was in great condition with no excess play. The prop-engine alignment was spot-on, and the prop shaft rotates smoothly with no slop.

Looking good

I rolled on two coats of Pettit Trinidad with an extra coat along the hull centerline, and on the keel, rudder and waterline.


While I was sanding and painting, I paid to have the BMC staff remove the blue Catalina top stripe and buff and wax the hull topsides.

Prop painted, hull with two coats of Pettit

The rudder got three coats


This short video shows the forward hull view.


Video showing aft hull view.

New shaft packing

I took the opportunity to replace the prop shaft packing using the fancy new HPME packing material. The new packing is a big improvement and seals the shaft with very little heat build up. I also replaced the raw water hull valve, and the large head tank hull valve (I will describe refurbishing the head and plumbing later).

Rear view



The topside buff and polish looks really good. I am not a fan of stripes, so like the look without the sheer stripe.

Costs:
$544    Haul and launch inc. pressure wash
$421    Remove Sheer stripe (labor)
$1300  Wax and buff inc. consumables and labor
$95      Sander rental
$720    Lay days in yard (9 days charged)
$158    Materials (e.g. Prop Coat, solvents, Festool sand paper, zincs, rollers, brushes, gloves, coveralls)
$36      Tax
$500    Pettit Trinidad HD 2 gallons

$3774 Total (minimum)

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