bumpy moulding

[cadboy]

has anyone come across the problem (i\'m sure there are some of you out there) where you\'ve started to paint your mini\'s for competition after filing and sanding it the best as possible to remove mould lines, rough surfaces and the like, only to find that the mini was cast with an older mould? the effect essentially, is leaving areas that couldn\'t be sanded like the face \"bumpy\" so that your paint, even when laid on water thin looks chalky?

any ideas how to comepensate? i\'ve tried laying down many many thin layers on these areas now, hoping that the paint \"fills in the bumps\" and ultimately smooths it out, but it\'s not quite working 100%. any bright ideas would be appreciated, not sure about any others, but in my case i\'ve already spent time converting, black lining and painting my model.

 

[marineboy]

How about a self-leveling compound like polyurethane lacquer, the type of stuff used for dipping? These products have a high viscosity (little tendency to run) and a high surface tension (level out smooth).


I don\'t have a particular product to recommend, but I have used the like (also two-component epoxy) to fill in rough spots on organ pipes before guilding -- the trick is to feather the edges of the patch so they run out into next to nothing -- this might be easier to do on a mini with sharply delineated surfaces than on a large, semi-flat surface.

 

[uglyamericanV1.5]

almost an idea

i am sculpting now and i am coming across the same thing......
if it is \"gappy\" , ie there are little holes and gaps, then you can use a \"wash\" of milliput......take some milliput and water it down ALOT, not a paste, more liquidy, and use that to wash the model. but if there are actual bumps, your best bet would to be go to the hardware store and get 500 grade sandpaper (1000 grade for plastic 500 for metal) wrap the sandpaper around a thin rod (or flatten a smal rod to make it uh flat) and sand it.

the wash is more for things like..i am molding a sash and its all bumpy like, so i am going to give that wash being careful not to fill in the folds, and then sand it (miliput loves to be sanded, green stuff hates it). if you use the wash (which doesnt sound exactly what you are looking for, so be careful) make sure you dont slap it on because it can obscure details.

i know other people have better ideas, but they are to busy talking about GW lacquor dip....

i m sorry my english is horrible, please forgive....im american..

 

[Einion]

Proper preparation is the key; little point in trying to sort this out at the painting stage (I speak from experience belive me )

The slurry of putty is probably the ideal way to deal with fine pitting, if it\'s bumps just fine sanding/abrading/scraping but it\'s a right pain to do. Often I don\'t think you should try unless you can get all of it - the better areas can call attention to the cruddy ones!

Einion

 

[kblaes]

If it\'s not OOP, most companies will replace miscast models like this. That is, if you have the time to replace it...