Painting The Hull

I re-taped the bottom strip in order to get a head start on making some progress with the Bristol beige.

A quick wipe down of the bottom strip area with 333

The first coat of Bristol Beige. I did not not tape the top line yet. The hull needed to dry at least 12 hours (at 72°) and I didn't want to put any tape on it yet.

I didn't like the look of beige strop on the hulll so I changed to OFF WHITE.

So with the hull drying for three days I felt it safe to tape the top strip

After 2 hours I had the top and bottom strips done for the first coat. Light coat is better or those drips will be back.

I lightly sanded with 220-grit, wiped down with 333 and put on a second coat and pulled that tape off.

Nov - Dec 2008

This is one process of painting the hull of P35 using rollers and brushes using a one part Interlux©

Brightside Paint.

The hull was painted during the same time period as the Deck and the Teak. Location is Melbourne Florida, outside

temperature during prep and painting averaged 72°, with always a light breeze and low humidity. It rained two days

after completing the hull. I had complete freedom at the yard to work and accomplish anything I needed to do.

Much better results could have been obtained by a paint sprayer.

1^st step after haul out is a good hull wash and degreasing

(I used "Purple Wash" & green scrub pads. Wash and degrease to remove all old wax and mold

that was waxed in. Last update 10 Dec 2008)

Vinyl Letters were removed using a plastic razor blade

Before

After

2^st step - Dings filled, Hull sanding using 120-grit sandpaper and a Wash Down

Sanding took almost 4 hours


Used a small tube of Bondo© to patch up a few Hurricane dock gouges. I didn't need that much just some touch-up areas. It sanded down nicely			Hull sanding with an orbital and 120-grit sandpaper. It took almost four hours to sand the hull and 8 sanding paper disks.

What Sandpaper to buy

(Chart complements DIY Magazine)

Final sanding of the hull. Took a lot longer than I thought

Final wash down done. Now ready for the 333 wipe down

Marking the Top and Bootstripe location


Instead of measuring the top line so I could replace it, I decided to tape over it and edge tape the bottom

I didn't need to try this method of holding the orbital sander but it might have prevented my sore shoulder. Cool idea.

3^rd step - Hull wipe down with Interlux© 333 to remove sanding dust and wax/mold

Wiping down the hull took about 30 min

"1 qt of cleaner should wipe down about 10' of boat." - DYI	"To check that all the wax is removed, lightly spray with water. If the water beads, degrease again." - Don Casey
The hull was wiped down with 333. It took about 1 hour to do the hull and to wipe down the deck teak. This cleaned up all the sanding dust that that the wash didn't take care of.

4^th step - Appling the Interlux© Pre-Kote©

It took about 1 hour to apply the Pre-Kote©

			What type of Painting Tape (Chart complements DIY Magazine)


The pre-Kote went on well. Just covered the hull with 1 qt. Not a great looking paint job but a good undercoat.	I forgot to do the front stay attachment with tape. A lot things to tape on this boat.	I was going to open my second qt of Pre-Kote and do the deck-hull trim but the guy at the yard that paints boats said it won't make much of a difference and you can same that $30. Yea...

6^th step - Sanding, Wipe Down of Pre-Kote and re-taping

Sanding took 40 min. Tapping took 20 min


I choose to pull off the pre-coat taping and re-tape after the sanding. A lot things to tape on this boat. Don't use that Dollar Store tape. Go buy the 3M good stuff. I did try the Dollar Store tape and the blue color of the tape bled off on the hull. Not good to start off with!

7^th step - First coat of Interlux Dark Blue Brightside

First coat took 1 qt completely and 1-1/2 hours. Temperature was 73° and 10% chance of rain.


The details	Roll and Tipping going on			Covered very nice for a first coat

I started with the stern area to learn how to do that roll and tip stuff		First coat reflection. Not bad	Clean up. I had just enough paint left in the can(s) to do some touch up after all the coats are done and fully dry.

8^th step - Sanding, Wipe down of First coat - Painting Second Coat

Second coat took also 1 qt. Sanding took 1 hr. Painting took 1-1/2 hours for two.


I started sanding with 440-grit paper and soon found it was not strong enough		I changed to 220-grit and found it cut the runs better on the trim.	The sanding block is a must in order to get an even service	I finished up the sanding and wiped down the hull with a light coat of 333	Getting ready for the second coat. I cut the paint with 1/2 ounce of 333.	I got by dad in the tipping act

Much better than the first coat.	That reflection is getting better	Love that new look	I think another coat will do the trick

10^th step - Sanding and Wipe down of Second coat - Painting Third coat

Third hull coat took 1 qt with some left over. 1-1/2 hours painting, temp 72°, 10% chance of rain


I tried to touch up a bad spot and it didn't work. You just have to wait till the coat is dry	I also needed to sand out a drip area. the top hull joint was notorious for drips.	The one and only bristle from the tipping brush. Yea, for a good brush here.	A place on the stern needed to be redone	I sanded the hull in places with 320-grit paper. I didn't get carried away here just in places	One more wipe down with 333	After using the tipping brush I cleaned it, wrapped it in a rag and stuffed it in a plastic glove until the next day
Based on the above, I decided to do a third coat

So instead of vertical rolling and horizontal brushing (tipping) I changed it around to get ride of the vertical lines that were staring to show. Turned out to be a good idea of my dads.				After two hours of drying, I removed the boot tape. This green car painting tape was into day 3 of it's 14 day life	The blue marine 3M tape worked better and didn't leave any glue scum.

Some places on the top teak toe rail will need to be re-sanded. If that's all I have to worry about from the blue paint, I'm happy.			So, after 3 hours drying for the third coat, it's starting to look much better than the second coat. That's it for the Dark Blue.

11^th step - Painting the Bootstrip and Top Strip

Hull is Finished !!

References

DIY Boat Owner

2001, Painting Handbook

Interlux© Help Desk

The Interlux© technical service helpline

800-468-7589

(The guys at Interlux© were a great help and answered by dumb questions more than once. Their estimates were right on and the paint responded just as predicted. Yep, I would do it again with Interlux©)

Good Old Boat

Jan/Feb 2002

Topside Refinishing

Page 36 - Tom Casey

Lessons Learned

1- I painted from 9-3 each day, due to humidity in East-Central coast of Florida

2- I pulled new paint into old paint on the hull, left to right

3- Roll and Tip worked better with two

4- Roll a 2' vertical strip and tip horizontally with the brush then switch the direction for the last coat

5- Keep the tipping brush cleaned with 333

6- For my painting effort, 1 qt of Pre-Kote covered the hull as well as 1qt per coat for the Dark Blue. This held true for the second and third coats also.

7- My paint runs were because I had too much paint on the roller and didn't tip it out soon enough. Could have thinned it more also.

8- I could only paint one coat-a-day-drying time at 75°

9- I put on two coats of OFF WHITE for both the top and bottom strip.

10- I sanded by the numbers, (Hull)120-grit, (Pre-Kote)220-grit, (DARK BLUE)320-grit

11- I used 1/3 gal of 333 for wiping down the hull, 1-qt Pre-Kote, 3-qts of DARK BLUE (three coats), a new brush each time, same good quality tipping brush, a bundle of rags and 3 rolls of good tape.

12- From washing the hull to pulling the tape off the strips it took two weeks for one person.

How much paint will it take

(Chart complements DIY Magazine)

Interlux chart on quantity of paint needed for size of boat

Paint & Color

Topside (hull) - Dark Blue 3 qts

Deck Non-Skid - Bristol White 1-1/3 qts

Deck Trim - Off White 2/3 qt

Water-line strip - Off White

Hull Stripes - Off White

Undercoat - Pre-Kote 1 qt

Thinner and Cleaner - 333 1-gal (used also for the deck and teak)

Interlux Specs on One-Part Prep and number of coats

Interlux Painting "Tip & Roll"

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