Thanks a million Rob!!!!!
Nothing like getting it straight from the horses mouth.
Happy paddling!!
Ken
: Rob's finishing technique
: The longer you can wait for the epoxy you are coating to cure the better. I
: like to wait at least two days for the epoxy to cure on my boats before
: coating with varnish. The first coat will take longer to harden than
: subsequent coats.
: Oil based varnishes require a surface sanded with 220 grit paper. This is the
: finest grit you need to have prefect results.
: Check the information supplied with the finish for application.
: Dealing with Dust
: Your shop is a dusty place. Every time you move around the shop the dust gets
: kicked up. This will land on your fresh coat of finish, unless you take
: steps to reduce the dust in the air. First, vacuum up as much dust in the
: shop as possible. Let things settle at least overnight. DO NOT run the
: tablesaw the day you will varnish. Table saw is are the worst dust
: offender.
: An hour before you will apply finish, sprinkle water on the floor to keep the
: dust down and mist the air with a plant water mist sprayer to pull the
: dust out of the air like a fresh rain.
: Wipe down wet sanded surfaces with clean water and and a sponge, then wipe
: dry with paper towels.
: Go over the dry surface lightly with a tack cloth. Tack cloths are available
: at all paint stores for about $1.
: For the finish to cure properly your shop temperature should be at least 70°
: F. Maintain this temperature until the finish is dry.
: Use every spotlight, desk light, anything you have to illuminate the boat
: with STRONG light so you can SEE what you are doing. I can't emphasize
: this enough.
: After many years of trying water base finishes and many different varnishes,
: I now finish all my boats with Z Spar Captain’s varnish. This is the
: compatible varnish for use with System Three resins. Check with your epoxy
: manufacturer.
: Varnish
: As I said before after trying a great many finishes I’ve settled on using
: Z-Spar’s Captains varnish. I use straight from the can unaltered. Some
: varnishes say “not to used below the waterline”. This applies only to
: boats that are moored in water. Varnishes often say “thin 10% with mineral
: spirits on first coat.” This applies only to bare wood applications.
: Captains brushes like a dream and creates a great finish.
: I have tried every method of dealing with paint can sealing and pouring and
: keeping the air from drying out the varnish. I’ve never had consistent
: luck with sealing paint can lids, keeping the lip clean and turning them
: upside down without leaking. If your varnish is not fresh, clean and scum
: free everything else is a waste of time.
: I now recant my new varnish in quart mason jars with separate lids and screw
: rings. The mason jar allows me to pour varnish without the lid mess of a
: paint can. I wipe the jar lip with a paper towel after pouring so the lid
: won’t stick. By using the separate lids and screw rings of the mason jar I
: don’t have to worry about not being able to get a lid off if I missed some
: varnish on the jar lip. I can always pry the lid off and use a new one if
: needed. I pour varnish into the bottom of a half gallon plastic milk
: carton. This size carton accommodates my 4” foam brush. Any used varnish
: gets poured back into the jar unless it is contaminated somehow. Before
: closing my jar lid I blow propane gas from my small shop torch into the
: jar to displace air to keep the varnish from skimming over.
: Brushing on a Finish
: Brushing on a perfect finish is an art that can take time and patience to
: master but here are some helpful pointers.
: Go over the surfaces with a tack cloth (available at most paint stores). All
: the sanding of your boat will give it a static charge which will attract
: dust. Going over the surface with a tack cloth is essential to remove dust
: before varnishing.
: The first coat may attract a lot of dust because of this static charge. This
: static is usually gone after the first coat.
: The first coat will take longer to dry than later coats due to the
: interaction with the curing epoxy.
: Brush Technique
: Most novices apply too thick a coat and find the finish has runs or drips.
: It is best to start with too little rather than too much finish on a surface.
: This will allow you to get the “feel” for that particular finishes
: brushing characteristics. Each finish brushes on slightly differently.
: Use a good 4” foam brush to apply varnish. I used to advocate costly
: finishing brushes but they take a lot of work to clean and you have
: solvent disposal to deal with. I’ve found a foam brush can work as well. I
: hardly ever use a 2” brush unless I’m working on only tiny parts. The 4”
: will coat twice as fast as a 2” brush AND can do small stuff too.
: Be careful around cockpit coamings and hatch openings because the foam brush
: carries a reserve of varnish that will pool out when pressed and leave a
: sag of varnish.
: Dip only the tip of your brush in the finish and do not wipe off finish on
: the edge of the can. This can add foam to your brush.
: The toughest part of applying a finish is to put on the right amount, so you
: don’t get drips or sags and yet cover the area completely.
: It seems easy to cover the boat with finish but, I never seem to go without
: missing a few spots.
: At a boat show a finishing rep displayed this brush technique; brush a small
: area (about 16” sq.) with the grain, then across the grain and finally
: with the grain, to spread the finish evenly and cover the area totally.
: Do all 3 passes one right after the other. When your brush comes out of the
: varnish container it's loaded. The first stroke (start at the keel or high
: on the boat) dumps a lot of varnish and successive stokes, with the
: strips, lay out less and less. Then stroke across the strips, from top to
: bottom, pulling the first stroke that was heavy with varnish down to even
: out the varnish layer. Then the final strokes, again with the strips,
: smoothes it all out and insures you've not missed a spot. You should be
: able to do all this with one dip from your varnish.
: I now use this brushing technique and have much fewer drips and sags.
: To prevent missing areas divide your brushing area into small sections. I use
: staples on my hulls below the waterline so I brush from the staple holes
: from one station to the next. Overlap your brush strokes form one section
: to the next.
: If you don’t have a definite area marker like staple holes you will have to
: mentally guess an area work size.
: I estimate a 1/2” dip of my brush into the finish will cover about a 16”.
: square area.
: Look for the reflections of your shop lights highlighted in the finish to
: make sure you have covered the surface completely and overlapped areas
: previously brushed. Look for drips or sags and brush them out before the
: finish sets. If someone looked in my shop window when I was applying a
: finish to my boats they would get quite a laugh at the contortions I go
: through. I look high and low to see my shop lights reflected in the finish
: to make sure I haven’t missed a spot.
: You must wait until the next day before recoating an oil based finish. I
: usually apply varnish in the evening.
: Sand between coats with 220 wet/dry sandpaper. I like wet sanding since it
: creates no dust and is very efficient. Do a thorough BUT LIGHT sanding job
: and level any drips or sags. You want to knock down dust and high spots
: and provide a little tooth for the next coat to bond to NOT sand the
: previous coat off!
: Wipe down surfaces with a sponge and clean water until you have removed all
: sanding residue. Wipe down surfaces with the tack cloth before recoating.
: I apply at least three coats of varnish. This should work with any brand of
: varnish but as I said earlier, each brand has slightly different brushing
: characteristics. This is why I use Captain's varnish. I just like the way
: it brushes better than any other I've found. I've tried the Flagship but
: it doesn't brush as well in my book.
: All the best,
: Rob Macks
: Laughing Loon CC&K
: www.LaughingLoon.com
Messages In This Thread
- Seeking: Rob Macks Varnishing Technique
Ken Sutherland -- 9/17/2002, 12:01 am- Re: Seeking: Martin Steps Varnishing Technique *Pic*
Nick Schade-Guillemot Kayaks -- 9/19/2002, 1:22 pm- Re: Seeking: Martin Steps Varnishing Technique
Mike and Rikki -- 9/25/2002, 3:47 pm
- Re: Seeking: Rob Macks Varnishing Technique
Rob Macks -- 9/17/2002, 9:28 am- Re: Seeking: Rob Macks Varnishing Technique
Ken Sutherland -- 9/18/2002, 12:51 am- Re: Hey Rob
Severne -- 9/17/2002, 11:32 am - Re: Hey Rob
- Re: Seeking: Martin Steps Varnishing Technique
- Re: Seeking: Martin Steps Varnishing Technique *Pic*