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I've never had any problems associated with hand oils on my models. I wash my hand obsessively before touching my model, and I wear gloves during the painting and weathering phase. What kind of problems are you likely to encounter with hand oils though?
"Gaiety is the most outstanding feature of the Soviet Union." - Josef Stalin
Small parts generally not.
Larger parts yes. Like car bodies, wings/fuselage, space/star ship, etc. I wash not for the mold release that may or may not be there but more for the handling, sanding, puttying, gluing that I do in the building of the model.
Nathan T Like Sprue said , if it's an ICM kit, you better wash it in gasoline...
Like Sprue said , if it's an ICM kit, you better wash it in gasoline...
Anyone with a good car don't need to be justified - Hazel Motes
Never done it myself but I can for sure say that I have built one kit that made me regret not washing the sprue. That was a RoG S-100 Schnellboot. The skull cap apparently had a fair amount of mold release agent on it which caused huge patches of it to pull up later when I was doing some masking.
Eric
Well, I ended up not washing the sprues, since there wasn't really anything visible to me.
GMorrison No. But I do wipe down the assembled model before painting, a real must.
No. But I do wipe down the assembled model before painting, a real must.
John McLaughlin
If I'm gonna plan on getting a "wet look" on an automotive build you can bet your I do!
Forum | Modelers Social Club Forum (proboards.com)
Yep, except in this case the barbed wire didn't win...
Modeling is an excuse to buy books.
That must have been like trying to wipe dry a spool of barbed wire.
One of the biggest freakin' failure modes I ever pulled off. Washed a big PE fret in alcohol, then wiped it with a cloth.
Moff I feel like I've asked this before, but does anyone wash their model sprues before assembly?
I feel like I've asked this before, but does anyone wash their model sprues before assembly?
Bish Nope, not plastic. I do wash resin as i have had problems with painting, but i have never washed a plastic kit.
Nope, not plastic. I do wash resin as i have had problems with painting, but i have never washed a plastic kit.
Same here. I always wash my hands prior to handling the plastic and keep a wipes container on the bench just in case.
Too many models to build, not enough time in a lifetime!!
Years ago I thought the makers used some sort of mold release, it seemed to me that I sometimes saw/felt a light greasy sense of the parts. Then I did wash the parts while still in the sprues, not a big expenditure of time, so out of habit I continue now. Likely overkill, but what the heck.
As I handle the parts during construction, I keep a small sponge dampened with alcohol on the bench and frequently wipe my fingers on it, just to avoid contamination. That's especially true for the big bits, fuselage, wing halves, tail surfaces and canopy.
What is a definate must is like the others said, a good wipe down of external surfaces prior to primer and paint. I use alcohol, not sure if branded Plastic Prep is still around, I don't find it at my LHS, seemed like good stuff.
Patrick
One of the advantages of belonging to a club, or participating in online forums, is that I frequently get warnings of kits with excessive parting agents or other contamination of the plastic. Styrene kit mfgs have gotten very good about giving us contamination-free kits these days, and I have gotten out of the habit of washing all kits. I still get bit occasionally if I am the first one I know to build a certain kit. I find contamination to be more of a problem on less popular brands from Eastern Europe. I have had very little problems lately, and have been warned about some kits. I did have one problem that caught me by surprise, but that was an old kit I bought from a guy who had it in his stash for years, an old AMT sci-fi kit.
Don Stauffer in Minnesota
I see no point in washing the sprues before assembly. I handle the parts with my greasy mitts during assembly, so I'd have to wash it a second time before painting. Why wash it twice?
Of course, there are ocassional exceptions. Like the time I spilt diet soda all over an open kit.
Before assembly?
No, it's completely unnecessary until you are in the painting phase, and then again, most modern Armor manufacturers are putting out pretty clean kits these days. The only models I wash are car models because most of the molds are pretty old and gloss paint is so notoriously finicky with adhesion issues. If you prime your models, washing isn't necessary at all unless you're eating greasy fries while assembly.
I think I must be doing something wrong. Every time I wash my sprues, I loose parts in the "spin cycle".
Every general introduction to this hobby that I've read recommends at least a wash in detergent, and so always have. Will wipe down all possible parts before painting, in addition.
"le plaisir delicieux et toujours nouveau d'une occupation inutile"
I do out of habit.
I have washed the parts once or twice in the past, but have found that it isn't necessary. All the handling of the parts during assembly will put all kinds of skin oils and fingerprints on them anyway, so I don't bother with the preliminary washing. Once the model is ready for paint, I wipe it and the unattached parts with denatured alcohol, let it dry a few minutes, then paint. Never a problem with that technique.
Devil Dawg
On The Bench: Tamiya 1/32nd Mitsubishi A6M5 Model 52 Zeke For Japanese Group Build
Build one at a time? Hah! That'll be the day!!
I like to wash the sprues with a small amount of dish soap, rinsed thoroughly and patted dry. It puts my mind at ease about mold release or other factory residue, and more important, it's an opportunity to examine the kit piece by piece. Kind of a modelling "zen" state, a chance to really look things over before before the first cuts. Besides, it's the most fun a person can have with an old toothbrush.
Happy New Year!
Mike
No,I have not found it necessary,nor have I experienced problems from not doing so.
Have taken to it. Have issues with paint peeling when masking. Might be on bare plastic of finger oils with MM acrylics.. Most likely my fault in any case. Might have to start using primer and a light wash just prior to paint.
I do, if they feel greasy. The Kitty Hawk XF5U-1 is one of those. I found that Purple Power is a great lazy man's sprue cleaner- just pour some into a container, dump the sprues in for a few hours, rinse with water, a little scrubbing with a toothbrush in the nooks and crannies, and air dry. Wear gloves, as PP will cause burns.
“Ya ya ya, unicorn papoi!”
I am a Norfolk man and i glory in being so
On the bench: Airfix 1/72nd Harrier GR.3/Fujimi 1/72nd Ju 87D-3
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