Contact Cement Glue Issue - Gloopiness

[Jimbob1208]

HI,

I always seem to have problems when trying to glue two painted parts together using Revel l Contacta Professional cement glue. The two parts appear to melt together and the paint and glue mix to form a stick gloop. For example in the picture below I have glued the airbrake flap on this aircraft model to the fuselage and you can see it has become a bit of a mess.

How do I avoid this?

Should I glue them in place before painting or am I using the wrong glue?

Thanks

[azureglo]

You should clean off any paint from the surfaces to be glued:

A scalpel and care is usually enough or I use liquid mask that I peel off after airbrushing. Contacta et al is actually a solvent that seeks to make a weld by melting the plastic's surface, if you put a layer of paint in its way, it will try and melt that first hence your gloop.

[Black Knight]

I concur with azureglo.

or use superglue, on parts that wont be under stress, such as your airbrakes there.