Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

I know with forge world you should wash everything to get rid of the release agent so you primer sticks and such, but is it required to was GW sprue ??

is your gw sprue covered in slipery greese?

With plastics, it's generally not required unless they appear to be very shiny and/or slippery, sometimes even with a slight tinge of colour on the grey.

Unsure about Finecast though, since I don't own any Finecast models, but the same probably applies, although it may be best to wash it anyway.

Any pewter models, however, will more often than not, require a good bath.

I do wash my models, after assembly and before any painting. As well as possible release agent residue, it also gets rid of greasy fingerprints and dust.

I have never had to wash the normal plastic sprue but any metal or finecast I always wash.

GW sprues are fine, in my experience. I would always wash resin (if I ever worked with it) and metal gets the steel wool treatment as part of surface prep, but plastics are hit and miss, generally. GW and Mantic sprues have always been good to go, out of the box, but my Pegasus terrain kits and some assorted bits and bobs from other manufacturers have arrived feeling a bit greasy. There's never any harm in washing, so long as you rinse away all the soap and let the models fully dry, but it's not necessary for GW plastics, unless you get them dirty between opening the package and priming.

I always just wash them, doesn't hurt, and helps to get finger prints and anything else that might have gotten on them. Otherwise I haven't had any issues with paint not sticking if they were not washed. Haven't worked with much resin, or finecast, so not sure about them.

I also always wash the sprues. I'd rather spend a little extra time up front than have an issue later...and its a fairly quick process.