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Spraying Solarlac

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Steve Wareham28/01/2011 13:09:04
3 forum posts
I have covered some parts of a GeeBee that I am building with glass and Poly C.
I am intending to spray the parts with Solarlac.
Two things I'm unsure about :-
1) Should I use a primer ? (if yes what type ?).
2) Should I thin the Solarlac ? (if yes what ratio ?).
stu knowles28/01/2011 20:50:12
616 forum posts
53 photos
Primer is to produce a good surface for top coat and or an even colour underneath light colours, I wouldn't say that its essential for using solarlac.
I thin with cellulose thinners. If not thinned enough it tends to spray a bit like cotton wool.
I have used Solarlac quite a lot and found it fuel resistant and pretty good all round. I use clearcoat as a final waft over any stickers or weathering and all around the front of the fus
stu k

Edited By stu knowles on 28/01/2011 20:50:47

Bob Webster28/01/2011 21:32:47
62 forum posts
7 photos
I would agree with what Stu says and can add:
Choose the undercoat colour carefully - Solarlac can lack depth of colour in colours like red or yellow if the undercoat is white. Flair undercoat (yellow) is good for under yellow.
Acrylic primer works as does cellulose if you can find some!
Mixing Solarlac for camouflage colours is excellent, if expensive now, because of the increased cost of their 110 ml cans. The camouflage greys and greens have great covering ability over light grey primer. Never understood why Solar didn't sell the popular camo colours pre-mixed. Or sold bigger tins.
White seems to bloom very easily if the temperaure is not high enough.
I always thinned Solarlac with anti-bloom cellulose thinners. After thinning in this way most colours do not keep well, dropping out solid pigment after a few days. Therefore, don't thin too much at a time.
One big advantage of Solarlac is the short drying time.
Barrie Dav 229/01/2011 09:31:23
1012 forum posts
14 photos
I've never had to spray coloured paints over solar/profilm/etc coverings before but I have a decoration scheme in mind that will necessitate painting directly onto the plastic film.
Has anyone encountered difficulties doing this( paint flaking off, not taking properly etc)?
stu knowles29/01/2011 17:57:28
616 forum posts
53 photos
I haven't personally sprayed onto film but I know that 'Prymol' is a solarfilm product especially for preparing the surface of the film to accept paint. I have read good reports.
i would have thought that paint onto film without a suitable chemical etch would not work well.
stu k
Barrie Dav 230/01/2011 08:15:36
1012 forum posts
14 photos
Thanks Stu.
Steve Wareham31/01/2011 12:59:11
3 forum posts
Thanks to all for the advice.

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