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Author Topic:   Screw holes
Maddog posted 05-09-2002 10:44 AM ET (US)   Profile for Maddog   Send Email to Maddog  
I'm ready to reattach railings and wood seating into the original hull holes on my 13 ft Sport Classic. The holes are not stripped. What is the best method to assure a secure reattachment and no water entry? I'm sure this is an old question but I could not fiqure out how to "key word search for old articles" in this website. Does anyone have that answer also.
Thanks,
Steve
OutrageMan posted 05-09-2002 11:09 AM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
I would bed the screws with 3M 5200.

Brian

Soho posted 05-09-2002 11:28 AM ET (US)     Profile for Soho  Send Email to Soho     
Steve,

5200 is probably what you want as Brian suggests. I recently used this for some other things on my boat and used the "fast cure" version which was nice as it set up pretty quickly - good for what I was doing at the time - probably makes no diff on your usage. Others have also advocated Marine Tex or West System epoxies - mostly for repair of stripped holes.

To search for something on the site, I usually call up a full two years of posts and use the browser search bar under Edit. If you have Google loaded as a tool bar you can use the Search Site option on it. The Browser based search will just search the subject lines of the displayed threads. I cannont remember if Google does the same of the entire site.

Good luck !

Ron

whalerron posted 05-09-2002 11:50 AM ET (US)     Profile for whalerron  Send Email to whalerron     
I would (and did) use 3M 4200 for this application. 3M considers 5200 to be for "permanently" assembled parts and they don't consider screws and rails to be permanent. They recommend 4200 for this kind of usage.
where2 posted 05-09-2002 12:08 PM ET (US)     Profile for where2  Send Email to where2     
On my dad's 1961 houseboat, we have mounted and remounted the engine a number of times. The last 2 or 3 times, we've used 5200 on the bolts. Will they come out, again, yes. 5200 is good stuff, but it isn't as permanent as alot of people think. If I were remounting a railing, I'd use 5200, unless I was planning on removing it next year. If I intended it to be there for the rest of the time I owned the boat. 5200
simonmeridew posted 05-09-2002 08:32 PM ET (US)     Profile for simonmeridew  Send Email to simonmeridew     
I used "Gorilla Glue" to re-fasten the last two sets of screws for the loosened railings in my Montauk. I think it is especially useful for fastening screws in wood which may be "wet" due to infiltration of rain, or other moisture, since the label says it uses water to set up. I believe 3M 5200 and gorilla glue are similar chemically in that they are polyurethanes. "Great Stuff" foam is also a polyurethane, though not a good material for this application.
simonmeridew
I have noticed that once you open a tube or either 5200 or 4200 the part you don't use left in the tube starts to harden and pretty soon (one or two days!!) there's a one inch plug of hardened material blocking the exit nozzle rendering extrusion of the remaining produce nearly impossible. On the other hand, you only need a small drop of gorilla glue per screw hole, and if you cap it right up the label says it's good for 2 years. They're not giving 5200 or 4200 away either.
whalerron posted 05-09-2002 11:41 PM ET (US)     Profile for whalerron  Send Email to whalerron     
There were other posts about this elsewhere but, for 3M 4200 and 3M 5200, put the unused portion in the freezer. It will keep a very long time. So far, mine has kept for 4 months. I haven't had any around longer than that.
compounder posted 05-17-2002 04:25 PM ET (US)     Profile for compounder  Send Email to compounder     
Exactly how do you use the 5200 when you do this? I have found no way to "inject" it into the hole as the air below bubbles it back out. Is just dipping the screw threads into the sealant satisfactory?
lhg posted 05-17-2002 06:11 PM ET (US)     Profile for lhg    
Does anybody know how Boston Whaler installs the rail screws into their BRAND NEW boats?

What bedding compound, if any do they use. If none, why? I have never removed any rail fitting on my Whalers, purchased new, and with plywood mounting pads, that had the rail screws set in 4200 or 5200, or anything else, for that matter.

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