Jason Channing Posted November 4, 2020 Share Posted November 4, 2020 2K clear varies immensely, If you buy the decent stuff Sikkens PPG etc their as fuel proof as ever, Myself I use Dynacoat 6000 which is made by Sikkens and its rock hard once cured and fuel proof up to 30% Nitro at least, no softening or marks. Quote Link to comment Share on other sites More sharing options...
David Hazell 1 Posted November 4, 2020 Share Posted November 4, 2020 Good to know. God this hobby sounds lethal! Quote Link to comment Share on other sites More sharing options...
Mike Etheridge 1 Posted November 4, 2020 Share Posted November 4, 2020 I have recently daubed a Flair Cub cowling externally with white Hammerite and hope it is fuel proof ?. I will do the same on the engine bearers and the inside of the cowling and note the comments made by others on the Hammerite paint. Quote Link to comment Share on other sites More sharing options...
Mike Etheridge 1 Posted November 11, 2020 Share Posted November 11, 2020 I have just found some Aerokote with a catalist in my cupboard. I assume this is similar to Clearkote and a useful fuel proofer ?---I am not sure when I last used this stuff and have briefly read through health and safety comments on some of the other preparations described on this blog. Anyone used this stuff, I am proposing using it tomorrow on my Flair Cub cowling prior to using Hammerite paint ?. I think I will do the painting operation outside. I have just noticed a couple of earlier references to Aerokote. Edited By Mike Etheridge 1 on 11/11/2020 17:01:13 Quote Link to comment Share on other sites More sharing options...
Alan Hilton Posted November 12, 2020 Share Posted November 12, 2020 Mike Do a test piece first aerokote is a urea formaldehyde resin it’s got a short shelf life .The formaldehyde is volatile so it disappears over time even out of a well stoppered container . Alan Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 12, 2020 Share Posted November 12, 2020 Posted by Mike Etheridge 1 on 11/11/2020 16:54:07: I have just noticed a couple of earlier references to Aerokote. Edited By Mike Etheridge 1 on 11/11/2020 17:01:13 check that you Aerokote will set/harden before applying to your model . Aerockote is different to Clearcote . Clearcote setsd/dries by evaporation of the solvent where as Aerokote uses a catalyst reaction . If Aerokote is old its likely that the catalyst has gone off and it might not set leaving a stick horrible mess to clean off. . Good luck but buy some Clearcote if you can find any its good stuff . Quote Link to comment Share on other sites More sharing options...
Bruce Collinson Posted November 12, 2020 Share Posted November 12, 2020 ED, which of us will ask the question of Deluxe? I volunteer you! BTC Quote Link to comment Share on other sites More sharing options...
Geoff S Posted November 12, 2020 Share Posted November 12, 2020 Now I'm close to 100% electic propulsion fuel proofing isn't an issue for me but when it was I used West epoxy (a hangover from when I did work on wooden sailing dinghies). I never used fuel with more than 10% nitro and mostly straight 0% or petrol but I never had a problem. I would have thought epoxy resin would have been totally fuel proof - isn't that the case? Geoff Quote Link to comment Share on other sites More sharing options...
Bruce Collinson Posted November 12, 2020 Share Posted November 12, 2020 I think it is Geoff and I use it round engines and tanks. The shortcomings in this context are it's 2 pack and it allegedly yellows with age, as well as being very brittle. I sense the Holy Grail is a one-pack coating which doesn't do the foregoing and is relatively fuel-resistant, as many of us found with Clearcoat. BTC Quote Link to comment Share on other sites More sharing options...
Mike Etheridge 1 Posted November 14, 2020 Share Posted November 14, 2020 Thanks Alan and Engine Doctor, I have a vague recollection that Aerokote when I first bought and used it, the drying time was several days, so a test is vital as suggested. Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted November 15, 2020 Share Posted November 15, 2020 With acid catalysed fuelproofer such as Aerokote or Sadolin PV67, I have noticed the pot life can be extended almost indefinitely by keeping it in a sealed jar. There is a volatile content to these fuelproofers that prevents it curing if it can't dry off. On a technical note about safety and particularly spraying, it has been stated on this forum that the hardener contains an isocyanate which is most injurious to health if breathed in. I have studied the COSHH documentation about PV67 in particular and while there are dire warnings nowhere does it use the word "isocyanate". Can any one more qualified than me throw any light on this? Andy. Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 15, 2020 Share Posted November 15, 2020 Posted by Bruce Collinson on 12/11/2020 13:09:38: ED, which of us will ask the question of Deluxe? I volunteer you! I did . Edited By Engine Doctor on 15/11/2020 12:08:44 Quote Link to comment Share on other sites More sharing options...
Mike Etheridge 1 Posted November 15, 2020 Share Posted November 15, 2020 I have just had another look in my cupboard for fuel proofer. Apart from the Aerokote and catalyst, I have a Ripmax Tufkote catalyst but I have three tins of Spectra spray that is fuel resistant, (Red, Orange and Black ) so I may use the Black on my Flair Cub inside the cowling. Quote Link to comment Share on other sites More sharing options...
Nigel R Posted November 16, 2020 Author Share Posted November 16, 2020 The Rustins arrived last week and I have added several coats to my tank/firewall. It has set very hard and glossy. The smell certainly reminded me of the old two pack proofers I used many moons ago before finding the now defunct Clearcoat. I have not tested with hot glow exhaust as yet. Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted November 23, 2020 Share Posted November 23, 2020 Just a bit of an update, Clearcoat is not defunct neither is Solarlac, was news to me! Quote Link to comment Share on other sites More sharing options...
Nigel R Posted November 24, 2020 Author Share Posted November 24, 2020 It isn't? Who is making it? Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted November 24, 2020 Share Posted November 24, 2020 A quick search shows a few retailers with odd stocks of old cans of Solarlac but most colours are out of stock. I recently found a jar of the stuff in the shed, the lid was so rusted, I had to cut it off. The paint inside was still good though. I used some to finish off a refurb project. It sets like an enamel paint but smells more like a cellulose type. I suspect it's enamel which is somewhat fuelproof but with a fast evaporating solvent. I am told by a professional modeller that you can thin most enamel paint with cellulose solvent. Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted November 24, 2020 Share Posted November 24, 2020 Posted by Nigel R on 24/11/2020 11:25:59: It isn't? Who is making it? Solarfilm! Straight from the 'horses' mouth' 'we do have stocks of Clearcoat and Solarlac but can’t be shipped as they are not accepted by Royal Mail or the Couriers as they are flammable' So if you can get to Coppull you can get some - shame I'm based in South Norfolk! Edited By Ron Gray on 24/11/2020 13:02:57 Quote Link to comment Share on other sites More sharing options...
Nigel R Posted November 24, 2020 Author Share Posted November 24, 2020 They're not making it though, that's old stock, and as you say you have to collect... Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 24, 2020 Share Posted November 24, 2020 I think the excuse of " flammable and couriers wont take is " is just an excuse as they cant be bothered . I have just ordered and received. Some disposable gas canisters , 5 ltr can of cellulose thinners . 1 ltr Two pack paint hardener etc. All flammable and delivered by couriers OK not the Royal Mail but no problem . I was lucky with some Clearcote as a friend bought me a liter of it at old warden last year. You could perhaps arrange your own collection from Solarfilm via a courier . Wont cost anymore than a normal collection/delivery. I arranged a collection for a large box of engines last year and no problem Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 24, 2020 Share Posted November 24, 2020 Hi Doc . We only get bits of the story . It was done for some reason , why ? we will never know . Perhaps a bitter man ? Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted November 24, 2020 Share Posted November 24, 2020 I used to use couriers on a regular basis and always had a problem with ‘dangerous’ goods, the category under which flammable goods are listed. Edited By Ron Gray on 24/11/2020 15:46:34 Edited By Ron Gray on 24/11/2020 15:48:35 Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted November 24, 2020 Share Posted November 24, 2020 Posted by Nigel R on 24/11/2020 13:12:43: They're not making it though, that's old stock, and as you say you have to collect... To be honest I don’t mind, I did ask Andrew if he would sell the ‘recipe’ but he said it would be cheaper to buy his stock of it! Quote Link to comment Share on other sites More sharing options...
Nigel R Posted November 24, 2020 Author Share Posted November 24, 2020 Posted by Engine Doctor on 24/11/2020 14:43:31: Hi Doc . We only get bits of the story . It was done for some reason , why ? we will never know . Perhaps a bitter man ? I suspect some sums were done, with a result like "sell everything and close up now, get to retire, keep going, go broke". Quote Link to comment Share on other sites More sharing options...
Nigel R Posted November 24, 2020 Author Share Posted November 24, 2020 Posted by Ron Gray on 24/11/2020 15:50:21: Posted by Nigel R on 24/11/2020 13:12:43: They're not making it though, that's old stock, and as you say you have to collect... To be honest I don’t mind, I did ask Andrew if he would sell the ‘recipe’ but he said it would be cheaper to buy his stock of it! That is frankly ridiculous. On another note; the Rustins two pack seems to pose no problem when ironing on film. It appeared to soften very slightly under heat whilst doing so. Quote Link to comment Share on other sites More sharing options...
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