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Modeling glue

Modeling glues are a type of adhesive that is commonly used in the hobby and craft industry for various applications such as model-building, woodwork, and other similar projects. This type of glue for models is specifically designed to provide a strong bond for small parts and delicate materials.

It can come in various forms, including CA liquid version, and the CA gel version, and can be made from different types of adhesive chemicals such as cyanoacrylate, epoxy, or polyurethane. It is also possible to find modeling glues that are specifically designed for the use of specific materials, such as resins, metal, or wood.

When using it, it's important to follow the manufacturer's instructions carefully, as improper use can result in a weak bond or damage to the materials being bonded. It's also important to work in a well-ventilated area, as many types can release fumes that can be harmful if inhaled.

When building a scale model, you may encounter several difficulties. Ensuring the structural integrity of the model can be a challenge, particularly when scaling down larger objects. The reduced size may introduce weaknesses or make it difficult to create stable connections between parts. Reinforcement with glues or alternative construction methods might be necessary to maintain stability and prevent the model from becoming fragile or easily damaged.

Overall, it can be a useful tool for a wide range of projects, but it's important to choose the right type of adhesive for the specific application and to use it carefully and responsibly.

Best glue for plastic models

Several types work well for plastic model kits, and the best one depends on the project and personal preference. Here are a few common options:

  • Plastic cement Skull Glue: This is a type of solvent-based adhesive that chemically melts and fuses the plastic together. It works best for the following polystyrene PE, ABS, methacrylate, and PVC which can create a very strong bond. 
  • Cyanoacrylate Instant Glue: This is a very popular fast-drying version that works well for small parts and can be used on a variety of materials, including wargame miniatures, model airplanes, model cars, and also for model kits. It is important to use a small amount of cyanoacrylate, as too much could generate uncomfortable toxic fumes.
  • Epoxy adhesive: This is a two-part adhesive that creates a strong, durable bond. It's often used for larger parts. An example would be Brown Stuff epoxy putty, which also serves to sculpt.
  • PVA glue: Water-based adhesive normally used for cardboard and papers, which also works for plastic models and model kits. It's not as strong as some of the other options, but it dries clearly and can be a good choice for certain applications. 
  • Tuft glue: This is a high-tack repositionable adhesive to create modeling grass clumps. Perfect for permanently attaching foliage, and other natural materials to scale models terrains. Also valid for gluing extruded polystyrene and expanded polystyrene.
  • Stencil Glue: Low-adherence repositionable adhesive that will convert an airbrush stencil into a repositionable one, allowing it to be easily placed on curved or difficult-to-fix surfaces, without leaving any sticky residue.

It's important to choose the one that is specifically designed for plastic models and to follow the manufacturer's instructions carefully. It's also a good idea to do a test fit before gluing parts together to ensure a proper fit.