When it comes to assembling and repairing scale models, model cement is an indispensable tool. Also known as plastic cement or styrene adhesive, model cement is specially formulated to bond plastic model parts together. Whether you are building a model car, airplane, ship, or any other plastic model kit, having the right model cement can make a big difference in the quality and durability of your finished project.
Types of model cement
There are several types of model cement available on the market, each with its own unique characteristics and uses. The most common types of model cement include:
1. Liquid Cement: Liquid cement is the most popular type of model cement and is ideal for general model assembly. It typically comes in a small bottle with a brush applicator, making it easy to apply small amounts of cement to precise areas of the model. Liquid cement works by melting the plastic surfaces of the model parts, allowing them to fuse together and create a strong bond.
2. Tube Cement: Tube cement is thicker and more viscous than liquid cement, making it ideal for bonding larger model parts or filling in gaps and seams. It is typically applied using a small brush or applicator tip and dries quickly to form a strong bond.
3. Plastic Weld Cement: Plastic weld cement is a solvent-based cement that chemically melts and fuses plastic model parts together. It is best used for bonding hard-to-join plastic materials and for creating strong, durable bonds. Plastic weld cement is often recommended for joining styrene or ABS plastic parts.
4. Super Glue: While not technically a model cement, super glue can be used as an alternative for bonding certain types of plastic model parts. It works by creating a strong, instant bond between the parts, but may not be suitable for all types of plastics or model kits.
Choosing the Right model cement
When choosing a model cement for your projects, there are several factors to consider:
1. Type of Plastic: Different model kits are made from different types of plastics, such as styrene, ABS, or polystyrene. It is important to choose a model cement that is compatible with the type of plastic used in your kit to ensure a strong bond and prevent damage to the plastic surfaces.
2. Application Method: Consider how you prefer to apply the model cement – whether you prefer a brush-on liquid cement for precise application or a tube cement for filling gaps and seams. Choose a model cement that suits your preferred application method to make the assembly process easier and more efficient.
3. Drying Time: The drying time of the model cement can also affect your workflow and assembly process. Some cements dry quickly within minutes, while others may require longer drying times. Choose a model cement with a drying time that fits your project timeline and allows you to work at a comfortable pace.
4. Strength of Bond: Consider the strength and durability of the bond created by the model cement. For structural assemblies or heavy-duty applications, opt for a strong bonding model cement such as plastic weld cement. For smaller or delicate parts, a milder model cement may be more suitable.
Tips for Using model cement
To achieve the best results with model cement, consider the following tips:
1. Clean the Surfaces: Before applying the model cement, make sure to clean the surfaces of the model parts to remove any dust, grease, or debris. This will ensure a better bond between the parts and prevent any contaminants from affecting the adhesive properties of the cement.
2. Work in a Well-Ventilated Area: Model cements contain solvents that can produce fumes and odors during application. To protect your health and safety, work in a well-ventilated area or use a fume extractor to remove any vapors from the air.
3. Practice Precision: Model cement can be a potent adhesive, so it is essential to apply it with precision and avoid excess cement on the model parts. Use a small brush or applicator tip to apply small amounts of cement to the joining surfaces and press the parts together gently to create a secure bond.
4. Allow Sufficient Drying Time: After applying the model cement, allow sufficient time for it to dry and cure before handling or manipulating the model. This will ensure that the bond is fully formed and prevent any accidental damage to the assembly.
In conclusion, model cement is an essential tool for anyone working on plastic model kits and scale models. By choosing the right type of cement, considering the compatibility with the plastic materials, and following best practices for application, you can achieve strong and durable bonds that enhance the quality and craftsmanship of your model projects. Whether you are a seasoned model builder or a beginner, model cement remains a valuable asset in your modeling toolbox.