Subject: Re: baidarka rub strips for urethane coatings
From: Mark Reuten (clinker@look.ca)
Date: Thu Apr 05 2001 - 22:58:31 EDT
I have had excelent results bonding to polyurethane coated skin using
sikaflex 241(which is a polyurethane itself) This product is not their
strongest available but has not yet let me down.
Mark Reuten
www.nomadboatbuilding.com
----- Original Message -----
From: "Gardner Congdon" <gcongdon@zama.net>
To: "baidarka" <baidarka@lists.intelenet.net>
Sent: Thursday, April 05, 2001 11:14 AM
Subject: baidarka rub strips for urethane coatings
> Thought I 'd pass this along. I called around for advice on an adhesive
> to attach the rub strip to the hull of my latest boat which I had coated
> with Duratuff from Titan Corporation. The Duratuff itself did not work
> well as an adhesive in its tacky state. The folks at Titan do make an
> adhesive they recommend for use with Duratuff. I was unable to find a
> local retailer for this though. They also recommend a product called
> Marine Goop which was available from NWOC and I'm sure other marine
> supply stores.
>
> I also contacted the guys at Inflatable Boats in Seattle. They seemed
> very knowledgeable about what adhesives work with urethanes, hypalon and
> other materials. They carry a product designed to adhere to urethane,
> but it is tinted brown. Those going for the traditional look with a
> tan-tinted skin might consider this product.
>
> I used the Marine Goop which can be applied in the same manner as
> contact cement. The instructions indicate that you can wait 2-10 minutes
> between joining the two surfaces. My experience is that you've got 3-4
> minutes at the most before the stuff looses its tack and starts to set
> up. Additionally, it is very thick and does not spread well. After
> wrestling with it and nearly giving up and ripping it all off, I managed
> to get satisfactory results. I let the Goop cure over night and then
> coated the keel strip with 4 coats of Duratuff. I'm fairly confident
> that this will work well.
>
> If I was to do this again (which I won't- in my opinion the UA7000 from
> Gaco is the way to go) I would do the following:
> *Cut and shape the keel strip to final dimensions
> *Lay the keel strip out on the hull where you want it
> *Using 2" masking tape, mask both sides of the hull adjacent to the
> strip
> *Roll the strip up and start from one end of the boat
> *Working 6"-12" at a time, spread the Marine Goop onto both the hull and
> the strip using your finger to ensure complete coverage and a smooth,
> flat application (use nitrile gloves)
> *Wait 2 minutes and join the surfaces, pressing the strip down fully
> into the goop
> *Do not get any Goop on the outside face of the strip, or anywhere on
> the hull you don't want it
> *Repeat for the length of the hull
> *If there are problem areas you may be able to tape them down into place
> with masking tape before the goop sets up
> *Let cure at least over night
> *Coat with 4-6 coats of Duratuff
>
> Short of some outfitting, Sisuitl is done. I'll try to get the last of
> the pics posted to the site in the next day or two. (
> http://www.aa.net/~sgshow/baidarka.html ) Aesthetically, I'm really
> happy with the boat. I'll let you know how performance and stability are
> once we launch.
>
> Take care,
> -Gardner Congdon
>
> -
> Baidarka Mailing List - All postings copyright the author and not to be
> reproduced outside Baidarka or Baidarka archives without author's
permission
> Submissions: baidarka@lists.intelenet.net
> Subscriptions: baidarka-request@lists.intelenet.net
> Searchable archive: http://rtpnet.org/robroy/baidarka
>
>
-
Baidarka Mailing List - All postings copyright the author and not to be
reproduced outside Baidarka or Baidarka archives without author's permission
Submissions: baidarka@lists.intelenet.net
Subscriptions: baidarka-request@lists.intelenet.net
Searchable archive: http://rtpnet.org/robroy/baidarka
This archive was generated by hypermail 2b27 : Tue May 01 2001 - 01:30:01 EDT