Re: Stus-List Keel treatment

2018-05-04 Thread Chuck S via CnC-List
I know of one lightning strike that happened when a boat was on the hard at the same boatyard. The boat was a Bristol 54 I think, very well built and heavily bonded and protected for a lightning strike. It had that little lightning dissapator on the top of the mast. All of his electronics were f

Re: Stus-List Keel treatment

2018-05-04 Thread Josh Muckley via CnC-List
ABYC makes no specific prescriptions regarding lighting. As such there is no one "right" way. One train of thought is to bring the top of the mast to the same potential and the water, effectively drawing lightning to the boat. Under this methodology you are really proving protection to the occup

Re: Stus-List Keel treatment

2018-05-04 Thread Ronald B. Frerker via CnC-List
Many years ago a friend treated the bare lead with a red lead paint.  Then he used the barrier coat and finally bottom paint.  Held up quite well.No expoxy involved in his method.  And fairly straight forward.Is the red lead no longer available?RonWild CheriCYC 30-1STL ___

Re: Stus-List Keel treatment

2018-05-04 Thread Ronald B. Frerker via CnC-List
Many years ago a friend treated the bare lead with a red lead paint.  Then he used the barrier coat and finally bottom paint.  Held up quite well.No expoxy involved in his method.Is the red lead no longer available?RonWild CheriCYC 30-1STL ___

Re: Stus-List Keel treatment

2018-05-04 Thread Alan Liles via CnC-List
I'm wondering about grounding for lightning protection with an epoxy coated keel. Isn't that why the mast is connected, electrically to the keel. I've had lightning strike very close, which aroused my interest in avoidance of being hit Al Liles SV Elendil C&C 37/40+ Vancouver > On May 3, 2018

Re: Stus-List Keel treatment

2018-05-03 Thread Matthew L. Wolford via CnC-List
f fixing it is worth the expense. From: Dave Godwin via CnC-List Sent: Thursday, May 03, 2018 8:38 PM To: C&C List Cc: Dave Godwin Subject: Re: Stus-List Keel treatment Watching this thread with interest. Currently have 6,000 lbs of exposed lead (yes, not safe or ideal…) sitting in a c

Re: Stus-List Keel treatment

2018-05-03 Thread Dave Godwin via CnC-List
Watching this thread with interest. Currently have 6,000 lbs of exposed lead (yes, not safe or ideal…) sitting in a cradle in the yard. FWIW, a former owner of “Ronin” sliced off the top layer of below waterline gelcoat and recoated everything with epoxy. And apparently the keel was dropped duri

Re: Stus-List Keel treatment

2018-05-03 Thread Chris Price via CnC-List
Neill, I've always wetsanded the lead with West Systems epoxy. Then sanded for tooth and applied bottom paint. No issues so far. Chris Price On May 3, 2018 at 5:26 PM Neil Gallagher via CnC-List wrote: Richard, I'm dealing with exactly the same issue, had the bottom soda blasted to bare lead and

Re: Stus-List Keel treatment

2018-05-03 Thread Matthew L. Wolford via CnC-List
Be careful about that first coat of bottom paint. It depends on the paint. From: Josh Muckley via CnC-List Sent: Thursday, May 03, 2018 5:35 PM To: cnc-list@cnc-list.com Cc: Josh Muckley Subject: Re: Stus-List Keel treatment I believe West Systems suggests scrubbing epoxy into the metal with

Re: Stus-List Keel treatment

2018-05-03 Thread Kevin Benoit via CnC-List
I’ll also pile on and say that Josh and Dennis’ method works quite nicely. It was my boat that Dennis repaired and the epoxy bond to the lead was quite strong. I know because I tested it extensively after he was done and gone and not looking. Kevin Benoit S/V Guru 1976 MKII 35’ On Thu, May 3, 20

Re: Stus-List Keel treatment

2018-05-03 Thread Dennis C. via CnC-List
Josh is on track. I just helped fix a "smile" on a 35-2. Sanded to bare lead then quickly applied epoxy with a 3M scrub pad with vigorous rubbing. Minimizes the oxidation and promotes a good bond. Once you get the epoxy on the lead then you can apply barrier coat, paint, fairing, whatever. Den

Re: Stus-List Keel treatment

2018-05-03 Thread Josh Muckley via CnC-List
I believe West Systems suggests scrubbing epoxy into the metal with a wire brush or a scrubby pad. Anytime an epoxy coating is applied (west systems, interprotect, etc) I've been told that to ensure proper adhesion between layers you need to apply the next layer while the last coating is still sof

Re: Stus-List Keel treatment

2018-05-03 Thread Persuasion37 via CnC-List
Richard A few years back when I fixed the C&C smile I took my keel down to the bare lead. At that time I read some where that epoxy wouldn’t stick to the lead unless it was free of oxidation. Hard to do with lead. I also learned that the best way to apply the epoxy and get it to bond was to

Re: Stus-List Keel treatment

2018-05-03 Thread Neil Gallagher via CnC-List
Richard, I'm dealing with exactly the same issue, had the bottom soda blasted to bare lead and what's left of my gelcoat.  I called Interlux about this, their tech rep recommended Interprotect 2000E on both the hull and the lead.  For the lead he recommended thinning the first coat 15%-20% wit

Re: Stus-List Keel treatment

2018-05-03 Thread bushmark4--- via CnC-List
To the group; I have removed all of the old bottom paint and some old faring compound from my keel and it is now down to bare lead; what should I use for a sealant/primer on the bare metal, before putting on a barrier coat, and what is the best method for application? I have also taken the hull