Bowie69 Posted September 17, 2021 Share Posted September 17, 2021 3 hours ago, cackshifter said: @Bowie69, was that airless spray? Nope, regular mini spray gun on a compressor. Quote Link to comment Share on other sites More sharing options...
cackshifter Posted September 17, 2021 Share Posted September 17, 2021 Thanks; Yes I reckon you do have to be quick to wash out. The Hardtop (PU) does seem to stay liquid much longer than its official pot life. Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 20, 2021 Share Posted September 20, 2021 Just for dim wits like me - how do airless and air fed (?) spray guns differ (I am aware one wont use air!)? Quote Link to comment Share on other sites More sharing options...
gruntus Posted September 20, 2021 Author Share Posted September 20, 2021 And a couple of further small questions: 1 - I'm definitely up for the Jotomastic, In terms of coverage for my 90 chassis, how much (in litres) am I likely to need to buy? (I will probably do this over a few nights in small batches and will order this week). 2 - And if I use a smooth radiator roller, is it possible to get a reasonable finish on the outside of the rear cross member of my "Driveway Queen"? 😄 Thanks again.👍 Grant🙂 Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 20, 2021 Share Posted September 20, 2021 2 hours ago, gruntus said: And a couple of further small questions: 1 - I'm definitely up for the Jotomastic, In terms of coverage for my 90 chassis, how much (in litres) am I likely to need to buy? (I will probably do this over a few nights in small batches and will order this week). 2 - And if I use a smooth radiator roller, is it possible to get a reasonable finish on the outside of the rear cross member of my "Driveway Queen"? 😄 Thanks again.👍 Grant🙂 Haha - and to add to point 1 - how much for a 110 chassis?! Quote Link to comment Share on other sites More sharing options...
miketomcat Posted September 22, 2021 Share Posted September 22, 2021 I bought a 5ltr tin and it was more than enough for a 110 chassis, two coats. Airless pumps the paint out of the nozzle at very high pressure to atomise it. Air fed uses the air movement to draw the paint out and atomise it with the air flow. As to which is better I haven't used airless. Mike Quote Link to comment Share on other sites More sharing options...
gruntus Posted September 22, 2021 Author Share Posted September 22, 2021 Thanks Mike. 👍 Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 22, 2021 Share Posted September 22, 2021 Excellent. I will get an order in. Being a two part paint system - is this the same as 2k stuff containing isocyanates and so shouldn't be sprayed by a home user without proper respirator type equipment anyway? (as you can tell, I am quite ignorant when it comes to paint systems!!) Quote Link to comment Share on other sites More sharing options...
cackshifter Posted September 22, 2021 Share Posted September 22, 2021 Hi I would recommend you use weight rather than volume to mix, especially small quantities, though I have happily used volume, but I find weight so much easier and more accurate. Towards that, I would recommend the chart published by SML, Link, and some scales or I have uploaded a rather rough & ready Excel version which if you set the amount in cell T4 will calculate quantities. As regards finish, I haven't had to do anything very visual. But it is worth noting some of the epoxy mastic primers are affected by UV, so if you want a nice finish, eg rear crossmember, maybe a thick coat followed by a flat off and then a spray finish to provide a cosmetic and UV resistant layer might be the way to go. I think the UV degradation is only cosmetic. And please wear gloves! jotun.xlsx Quote Link to comment Share on other sites More sharing options...
gruntus Posted December 11, 2021 Author Share Posted December 11, 2021 Hi Gents, Thought I'd give a quick update on how this went. I applied two coats of Jotun a week apart and I put it on with radiator rollers and a brush and then followed up with spraying a full coat of schuttz to give it an antichip barrier. Jotun is definitely a great choice of paint and time will tell how it stays on. Big thanks to Mike and cackshifter for the recommendation and info, so much better than just a coat of underseal! I will post some before and after pics. All the best G Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 11, 2021 Share Posted December 11, 2021 I've got my paint but havent had time to do it yet. How did you prep your chassis? Quote Link to comment Share on other sites More sharing options...
gruntus Posted December 11, 2021 Author Share Posted December 11, 2021 12 minutes ago, reb78 said: I've got my paint but havent had time to do it yet. How did you prep your chassis? A wire brush and scraper to get all the loose stuff off then a jet wash Quote Link to comment Share on other sites More sharing options...
gruntus Posted December 12, 2021 Author Share Posted December 12, 2021 (edited) As Promised: Before Edited December 12, 2021 by gruntus Quote Link to comment Share on other sites More sharing options...
gruntus Posted December 12, 2021 Author Share Posted December 12, 2021 (edited) After a coat of Jotun (I did two) Edited December 12, 2021 by gruntus Quote Link to comment Share on other sites More sharing options...
gruntus Posted December 12, 2021 Author Share Posted December 12, 2021 (edited) After Schutz Edited December 12, 2021 by gruntus Quote Link to comment Share on other sites More sharing options...
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