http://www.features02.kitparade.com/bf108bg_1.htm вот статья Бретта Грина про Тайфун. в ней он упоминает, что использовал Liquid Paper:

"I have heard that some HyperScale visitors use Liquid Paper as a filler for fine gaps. I decided to try this technique for the first time myself. I applied Liquid Paper to gaps, steps and seams using the brush supplied in the bottle. After a few minutes, I sanded the filler with dry 400 grit Tamiya abrasive paper, followed by finer grades and finally polishing the plastic surface with "Mr Rubbing Compound" and a soft cloth. Polishing the model ensures that all the scratches, gaps steps have been eliminated.

Although Liquid Paper would not be suitable for larger gaps, I was quite happy with the results."

как я понял, Liquid Paper - канцелярская "замазка" корректор (поправьте, если я не прав).

сам не пробовал, но, в принципе, тоже выход.