Model cement, often referred to as plastic cement or polystyrene cement, is an essential tool for any model builder. Whether you are working on scale models, miniature figures, or dioramas, model cement is crucial for assembling your projects. In this comprehensive guide, we will explore everything you need to know about model cement, including its uses, types, application methods, and tips for successful bonding.
**What is model cement?**
Model cement is a type of adhesive specifically designed for bonding plastic materials commonly used in model making. It is formulated to soften the plastic surfaces of the models, allowing them to fuse together creating a strong and permanent bond. Model cements typically contain solvents that melt the plastic, creating a chemical bond as they evaporate, leaving a solid connection between the parts.
**Types of model cement**
There are several types of model cement available on the market, each with its own unique properties and applications. The most common types include:
1. **Liquid Cement**
– Liquid model cement comes in a squeeze bottle with a thin applicator tip, allowing for precise control and application. It is ideal for bonding small parts and intricate details where accuracy is crucial.
2. **Tube Cement**
– Tube cement is similar to liquid cement but comes in a tube form with a larger opening. It is suitable for larger models and broader surfaces that require a more generous amount of adhesive.
3. **Gel Cement**
– Gel model cement has a thicker consistency compared to liquid or tube cement, making it ideal for vertical surfaces or areas where a higher viscosity is needed to prevent the adhesive from running.
4. **Dual-Action Cement**
– Dual-action model cement is a combination of plastic cement and instant adhesive (cyanoacrylate), providing both a quick-fix temporary bond and a long-lasting permanent bond. It is perfect for securing parts while waiting for the main bond to set.
**How to Use model cement**
Using model cement correctly is essential to ensure a strong and secure bond between the parts of your model. Here are some steps to follow when working with model cement:
1. **Prepare the Surfaces**
– Before applying model cement, ensure that the surfaces to be bonded are clean and free of any dirt, grease, or debris. Smooth edges and remove any excess plastic to create a tight fit between the parts.
2. **Apply the Cement**
– Depending on the type of model cement you are using, apply a thin layer to one of the surfaces to be bonded. Use a small brush or the applicator tip provided to evenly distribute the adhesive.
3. **Join the Parts**
– Carefully align the parts and press them together firmly. Hold them in place for a few seconds to allow the adhesive to bond properly.
4. **Allow to Dry**
– Depending on the type of model cement used, allow the bond to dry and set for the recommended amount of time. Avoid moving or disturbing the parts during this curing period.
**Tips for Successful Bonding**
– Use in a well-ventilated area to avoid inhaling the fumes from the solvent-based adhesive.
– Work in small sections to ensure precise alignment and prevent the adhesive from drying too quickly.
– Clean excess cement with a cotton swab or cloth dampened with a solvent (e.g., acetone or nail polish remover).
– Store model cement in a cool, dry place to prevent evaporation and maintain its effectiveness.
In conclusion, model cement is a vital tool for model builders of all levels. By understanding its types, application methods, and following the tips for successful bonding, you can achieve professional results in your model-making projects. Remember to handle model cement with care and practice proper safety precautions to enjoy the rewarding experience of creating detailed and intricate models. Happy modeling!