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Disaster

worksoptony 10:41am, 24 November 2013
Returned to the boat in the spring to find a can of paint stripper had split at the seam and poured its contents into the bilge. I cleaned the residue up and washed everything down. It had damaged the gelcoat where it had trickled down, but other than that the damaged seemed cosmetic. Came to the boat last week end, on checking the bilge I found that the whole area had dissolved, leaving only fiberglass matting and no resin at all.. Anyway after a lot of angst, I spoke with a few, more knowledgeable people, it seems that it might not be the total disaster I first envisaged. My next challenge is that I need to remove the lifting plate to examine underneath, to see how far the damage has gone and whether the area around the keel bolt has been compromised.. The nuts on the keel bolts are quite rusty so will need to be replaced, has anybody any idea of a supplier for the nuts? I can't find anything on the internet.
busy home [deleted] 5 years ago
I have 20 odd .. and bar.. and a halfords socket V heavy duty .. you may have to drill down the side of the nut and split with a air chisel (or a big hammer , ) I did .. Pics on here .. EXPLORE .
The bar will be ok .. removal is a pain .. Throw the lifting plate away (not balanced anyway)
ron.dustow @gmail .com.
rothwell_neil 5 years ago
Thing to remember is that it is just a composite of glass and resin, put the resin back and as good as new. So get plate off, then make sure you really wash with hot water numerous times to get rid of any stripper as caustic will affect the new resin. Then thoroughly dry and put resin back in. Use a thin resin, polyester or epoxy, slow setting and stipple it in with a cut down brush so that you can push the resin back into the fibres. Keep stippling until fully wetted and it will be as good as new.
worksoptony 5 years ago
The matting has lifted. Would it be better to remove this and replace?
bengunn2 5 years ago
Hi, do you have any photograghs of the offending area, perhaps with an idea of scale might elicit solutions.
regards Ian.
rothwell_neil 5 years ago
I would remove matting if too bad but you will just have to replace with new so if OK just needing wetting just wet it with resin. At the end of the day the A24 was built good and strong as no one knew how thick to make it Mr Butler made sure it was thick enough. The good news is that you can make as good as new with layers of chopped strand or chopped strand and cloth. Ben is right some photos would help.
worksoptony Posted 5 years ago. Edited by NormanKlipspringer (admin) 5 years ago
Hi Guys, I've place a couple of images in the photo section (unsure how to link them into the body of the text).

Tony
Bilge 1

Bilge 2

Done the link for you.
Norman
worksoptony 5 years ago
Thanks Norman.
spearhead_027 5 years ago
It probably doesn't make much difference in principle, but this looks to me like one of the later boats with a thin lining moulding inside the bilge (like Zethar to name one famous, well-photographed example). Clearly the gel has been entirely dissolved away and the polyester resin matrix underneath seems to be affected as well. This inner skin is, I understand, bedded on a mix of polyester resin and micro-balloons which could be similarly affected, but will easily disintegrate if attacked with a chisel. After that you come to the main hull moulding which, on the horizontal surface, is something like an inch and a half thick, and which hopefully is stout enough to have absorbed any residual stripper.

The problem is how to ensure that all the stripper is removed or neutralised and I agree that the best method is to dig all the affected material out and replace with fresh glass and resin, polyester or epoxy as you prefer. Dig a little into unaffected skin to be sure that no residues remain, wash out well, and use a heater and dehumidifier before re-laminating. Finish off with some (clear) gel to keep bilgewater out of your repair.

Don't throw away the lifting eye - it does have its uses and allows the boat to be launched anywhere that a mobile crane can get to, as opposed to a boat hoist in a marina. This may not be important to you now, but could help a future owner considerably. Spring Run (still for sale) has been launched by crane from her trailer for many years and has permanent lifting chain and stainless foreguys to facilitate this.

Overall I don't think this disaster need delay the start of next season unduly for you - best wishes, Ian.
worksoptony 5 years ago
www.flickr.com/photos/7651547@N05/11137634223/

Removed the damaged glass fiber to reveal what looks like cement. It's pretty solid anyway. Could this be resin and microballoons?

Struggling with the nuts on the keel bolts though.
bengunn2 5 years ago
Hi Tony, microballoons are just that, very very very very small, to the naked eye it just looks like powder but mixes with resin to form a very smooth lightweight paste, to whatever consistency you choose, you must always catalize the resin before adding balloons. The stuff you have photographed looks quite grainy, and without a sample, I could only guess what it is, so not much help I'm afraid! If you are concerned send me a sample and I could probably be more help (a thumbnail lump will suffice) PM me and I shall email my address. by the way, how much glass do you reckon you ended up removing (thickness wise)?

Ian
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