Resin models and resin parts

Resin models obtained good acception among the modelers because the companies that produce them try to offer original models that never were produced and hardly will be produced by the big companies that produce models in injected plastic. These models due to the cost of the raw materials and process of manufacture are a bit more expensive (resin models are manufactured in limited run series while injected plastic models by industrial equipment in large series) however the originality and the fine level of detail that is achieved in resin models well justify their price, and usually in the hands of a good modeler they turn into an excelent final product which can be considered unique pieces.

The material with wich the modeler is going to work has different properties than injected plastic, the building of resin models has specific procedures, but in general they are not quite different than the ones used in the building of plastic models, in both cases there is the same objective, to prepare pieces for the building of the model.

In many cases the building of resin models is even simpler than the building of plastic models, this due to the fact that many resin models have less loose parts, some detailed parts are already molded in the model.

There are some practices and tools that make life easier to the modeler who is building and finishing resin models,  the following are among them:

The use of a small razorsaw with very fine teeth which is used to saw excessive resin material resulting from the casting process and the use of fine sand paper to finish. Many modelers find very usefull a rotative tool, precision drill type ex. Proxxon® , of which some of its accessories allow you to make in less time and with accuracy much work which in other way would be very time consuming. In certain cases it is advisable to secure the model to be worked in a vise with the teeth protected in a way to prevent damage to the model, in that procedure we must be carefull and protect the model of any damage that may incurr from that practice.

We also must take into consideration that the resin dust from sanding or sawing is toxic and harmfull to the airways, so working in a well ventilated place and the use of a good  protective mask is advised when sawing or sanding resin.

Use a modeler blade to carefully separate the small pieces from their molding base, and use it to eliminate exceses of resin from the molding process as you do it on an injected plastic model, take in consideration that resin is more fragil than plastic.

In case some small resin parts come distorted or warped which may result from the molding process, it is advisable to imerse the part in hot water and carefully take it to its original shape, after that you let it cool by itself or imerse it in cold water.

In the assembling step of resin models you must use a cyanoacrilate type of glue "Super Glue" because the type of glue that is used to assemble injected plastic models does not react with resin. In this step some modelers have been getting good results by using cyanoacrilate glue in Gel because this allows a better adjustment of the parts to be assembled before they become united.

For a better finish of the model it is advised to use an airbrush for its painting, this allows a more even painting.