Model cement, also known as plastic cement or polystyrene cement, is a must-have for any model building enthusiast. Whether you’re putting together a model car, airplane, or ship, model cement is the glue that holds everything together. But what exactly is model cement, and how do you use it? In this comprehensive guide, we’ll explore everything you need to know about model cement.
### What is model cement?
Model cement is a type of glue specifically designed for bonding plastic models made from polystyrene or similar materials. Unlike traditional glue, model cement works by partially melting the plastic parts it is applied to, creating a strong and durable bond. This makes it ideal for assembling intricate plastic models with tight-fitting parts.
### Types of model cement
There are several different types of model cement available on the market, each with its own unique characteristics and applications. The most common types include:
1. **Liquid Cement**: This type of model cement comes in a bottle with a brush applicator, making it easy to apply to small parts and hard-to-reach areas. Liquid cement dries quickly and forms a strong bond, making it ideal for intricate models.
2. **Tube Cement**: Tube cement is a thicker, gel-like adhesive that comes in a squeeze tube. It is ideal for bonding larger plastic parts together and filling gaps between seams. Tube cement has a longer drying time than liquid cement, allowing for more flexibility in positioning parts before the bond sets.
3. **Cement Pens**: Cement pens are a convenient alternative to traditional liquid cement, as they allow for precise application of glue to small parts without the need for a separate brush. They are particularly useful for detailing work and fine assembly.
### How to Use model cement
Using model cement is a straightforward process, but there are a few key steps to follow to ensure a strong and seamless bond:
1. **Preparation**: Before applying model cement, make sure the surfaces to be bonded are clean and free of any debris or oil. Sanding the bonding surfaces lightly can also help create a stronger bond by providing more surface area for the glue to adhere to.
2. **Application**: Apply a small amount of model cement to one of the surfaces to be bonded, using a brush or the tip of a cement pen. Press the parts together firmly, making sure to align them correctly before the glue sets.
3. **Drying Time**: Allow the model cement to dry completely before handling the bonded parts. The drying time can vary depending on the type of cement used, so refer to the manufacturer’s instructions for guidance.
4. **Cleanup**: Any excess model cement can be removed using a cotton swab or a rag dampened with a solvent like acetone or nail polish remover. Be careful not to use too much solvent, as it can damage the plastic parts.
### Tips and Tricks for Using Model Cement
To get the best results when using model cement, consider the following tips and tricks:
1. **Ventilation**: Model cement can emit fumes that may be harmful if inhaled, so always work in a well-ventilated area or use a respirator mask.
2. **Precision**: Use a toothpick or a small brush for precise application of model cement to avoid excess glue that can mar the finish of your model.
3. **Clamping**: For larger models or parts that require a strong bond, consider using clamps or rubber bands to hold the parts together while the glue dries.
4. **Experiment**: Different brands of model cement may have different drying times and properties, so don’t be afraid to experiment with different types to find one that works best for your needs.
### Conclusion
Model cement is an essential tool for anyone who enjoys building plastic models. With its ability to create strong and durable bonds between plastic parts, model cement simplifies the assembly process and ensures that your models will stand the test of time. By following the tips and techniques outlined in this guide, you can master the art of using model cement and take your model building skills to the next level.