I used the Hirsch coating on my KR 1 (fiberglass tanks) about 6 weeks ago. Sloshed easily, used about 1/2 quart total in three tanks, and yes, rotating the outer wings was a joy. I replaced all the fittings with plugs, but couldn't find anything that would stay in the vent tubes, as the compound developed it's own pressure (off gassing, I guess), so just let it all set up overnight and cleaned them out afterword. The stuff is hell on paint, tho, so do your best not to let it dribble...They've been holding fuel now for at least 6 weeks, no sign of softening/peeling. Good luck... Kevin
On Mon, Nov 5, 2018 at 1:27 PM Jeff Scott via KRnet <krnet@list.krnet.org> wrote: > The reference was for slosh compound from KBS Coatings. Based on that > recommendation, I am using it in the glass tanks in my SuperCub Clone. > We'll see how it does. My KR has the Bill Hirsch compound in it. Still > good after 22 years and 1200+ hours with no flaking or peeling. > > I had a discussion this weekend with an RV builder that had sloshed his > tanks just prior to the RV "Service Bulletin" reversing their > recommendation and saying not to slosh the tanks. He said that after 10 > years use, he removed the tanks and went in and scraped all the slosh > compound out of the tanks. Per his experience, he said it stuck really > well at the seams where it had something to bite into, but peeled quite > easily where it was covering slick smooth surfaced, i.e. flat aluminum. I > would conclude that if your tanks have some texture to them, the compound > is likely to stick much better. Additionally, acid etching opens the > surface a bit and will help the slosh compound to stick better, including > in fiberglass tanks. That is per the recommendation from KBS Coatings. > <https://www.kbs-coatings.com/> > > -Jeff Scott > Cherokee Village, AR > > > > *Sent:* Monday, November 05, 2018 at 2:08 PM > *From:* "svd via KRnet" <krnet@list.krnet.org> > *To:* "krnet@list.krnet.org" <krnet@list.krnet.org> > *Cc:* svd <osprey...@yahoo.com> > *Subject:* KR> Tank sloshing > > Ha ha ha. Great stories and yes, an aluminum tank is very much the way to > go. Sadly the project Im working on has fiberglass wing tanks and I’d like > to get her done and flying. Cutting out and replacing the wing tanks would > be a massive time sink. > > Im looking for tank sloshing recommendations (product, procedure, tips). I > know the RV folks had a serious issues with tank sloshing material pealing > and clogging fuel intake. > > I am hoping there is better adhesion to fiberglass than aluminum, and > perhaps a sealant product that won’t peal. The tanks I want to seal haven’t > had fuel in them yet, perhaps that will help. > > There was mention of a sealant product a few months ago - I think during > the mogass blues thread. I thought it would be easy to find it in the > archives, but I havent found it yet. > > I can also imagine that no, there is no such thing as a sealant that won’t > peel, that sealants are half assed and its just not the right thing to do. > > Any experience with tank sealants? > > RHINO FUEL TANK SEALER: > > https://www.aircraftspruce.com/catalog/appages/jeffcotank.php?clickkey=11739 > < > https://www.aircraftspruce.com/catalog/appages/jeffcotank.php?clickkey=11739 > > > > Bill Hirsch Sealer: > > https://www.aircraftspruce.com/catalog/appages/gastanksealer.php?recfer=13793 > < > https://www.aircraftspruce.com/catalog/appages/gastanksealer.php?recfer=13793 > > > > BUNA-N-SLOSH COATING: > https://www.aircraftspruce.com/catalog/appages/bunan.php?recfer=20373 < > https://www.aircraftspruce.com/catalog/appages/bunan.php?recfer=20373> > > I am guess I will and pour it in as I rock/rotate the wing - maybe even > pressurize the tank to push the resin into any pin holes. > > Cheers, > Owen > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
