Alexei Volkov
Plastic model kits are a fun and rewarding hobby for people of all ages. They are scale models that consist of plastic parts that require assembly and painting. The hardness of plastic model kits is an important factor to consider when choosing a kit, as it determines the kit's durability and flexibility. The Shore Hardness scale is an internationally accepted standard that measures the hardness of plastics and rubbers by evaluating their resistance to indentation. It operates on a numeric range of 00 to 100, with 00 being the softest and 100 being the hardest. This scale helps modellers select the appropriate kit for their skill level and ensures a positive building experience.
Explore related products
What You'll Learn
- Plastic model kits are made through injection moulding
- The Shore hardness scale measures the hardness of plastics
- Snap-together kits are more challenging than glue kits
- Plastic model kits are replicas of subjects like military aircraft and vehicles
- Plastic model kits are produced by manufacturers like Airfix and Tamiya
Plastic model kits are made through injection moulding
The process of creating plastic model kits through injection moulding begins with extensive research and planning. Manufacturers take precise measurements and photographs of the object being replicated, such as a plane or a car. These measurements are then used to create computer-aided design (CAD) drawings, which serve as the basis for the mould-making process.
Once the CAD drawings are complete, the next step is pattern-making. Expert carvers create a prototype of the model, typically using wood. This prototype is usually larger than the final scale model, allowing for greater accuracy and the addition of intricate details. After carving, each piece of the prototype is coated and cured with epoxy resin. Once the resin hardens, the wooden pieces are removed, leaving behind a hollow space that forms the core mould.
The injection moulding machine then comes into play. It consists of two main parts: the injection unit and the clamping unit. The injection unit melts the plastic and injects it into the mould, while the clamping unit ensures that the mould is securely closed during the injection process. The molten plastic is injected into the mould, cooled, and solidified to create the individual parts of the model kit.
After the injection moulding process, the plastic pieces are removed from the mould and assembled to form a “sprue," which is a frame holding all the parts of the model kit. The model kit manufacturer may also include additional components such as decals, paints, and instructions for assembly.
Building plastic model kits is a rewarding hobby that has evolved with technological advancements. The kits vary in complexity, ranging from simple \"snap-together\" models to advanced kits requiring special tools, paints, and adhesives. Hobbyists can choose from a variety of subjects, including military vehicles, civilian transportation, characters from fiction, and more.
Freeing Stuck Plastic Valves: Quick and Easy Fixes
You may want to see also
Explore related products
The Shore hardness scale measures the hardness of plastics
Plastic model kits are scale models consisting of unassembled plastic parts that are available in "snap-together" form or for assembly using plastic glue. The plastic parts are typically made from polystyrene and are bonded together with a plastic solvent-based adhesive. The Shore hardness scale is a method used to measure the hardness of plastics, rubbers, silicones, and other polymers. It determines a material's resistance to indentation or localized deformation. This is done using a durometer, which measures the hardness of the material on a standardized scale. The Shore hardness scale ranges from 00 to 100, with 00 being the softest material and 100 being the hardest. Shore 00 is used for soft and flexible materials, Shore A is used for flexible rubber materials and non-rubber plastics that are semi-rigid and somewhat flexible, and Shore D is used for testing hard and semi-rigid plastics and rubbers. The Shore A hardness scale is commonly used in the polymer industry to aid in material selection, ensure consistent quality, and compare the hardness of materials. Manufacturers use durometer testing as a quality check for products and to determine if a material is sufficiently hard or soft for a particular application. For example, a thin-walled component with delicate features, such as a miniature drone propeller, would require a Shore 30A silicone rubber to allow for easy removal from the mold without damaging thin and delicate parts.
Plastic Breakdown: Does It Ever Truly Disappear?
You may want to see also
Explore related products
Snap-together kits are more challenging than glue kits
Plastic model kits are scale models that consist of unassembled plastic parts, which can be assembled in two ways: using glue or by snapping the parts together. While snap-together kits are generally considered to be beginner-friendly, they can still be more challenging than glue kits.
Snap-together kits come with pre-painted parts that can be easily assembled without the need for glue or additional paint. They are a great option for those who want to get into model building without dealing with the mess and extra effort of traditional kits. However, they might require some "clean-up" using a hobby knife to remove any "flash" (small lines of plastic where the two sides of the steel mould met) or to shave down parts to make them fit better. Once assembled, these kits cannot be taken apart without bending or breaking the plastic, which adds to the challenge.
Glue kits, on the other hand, usually require more tools, supplies, and paints. In addition to purchasing glue, paint, and paintbrushes, you may also need a hobby knife and sprue cutters to remove parts from the sprue cleanly and to "clean up" the parts. While glue kits may seem more straightforward, it is important to allow adequate drying time for the glue and paint, and to handle the model with care to avoid messing up your work.
The level of challenge in building plastic model kits can also depend on other factors such as the number of parts, the complexity of the model, and the skill level of the builder. It is recommended to start with the minimal amount of tools and supplies needed and gradually expand your collection as you gain more experience and interest in the hobby.
Overall, while snap-together kits may be more challenging in terms of part assembly and customisation, glue kits require more time, effort, and tools for a successful build. It is important to consider factors such as skill level, subject matter, brand reputation, and included materials when choosing between a snap-together or glue kit to ensure a rewarding and enjoyable model-building experience.
Stomach Acid's Effect on Plastic: A Breakdown
You may want to see also
Explore related products
$154.95 $166
Plastic model kits are replicas of subjects like military aircraft and vehicles
Plastic model kits are replicas of various subjects, including military aircraft, vehicles, and ships, as well as science fiction themes, model cars and trucks, and figure models. These kits are made from polystyrene plastic and come with parts that require assembly and painting. The parts are usually attached to a frame called a 'sprue', with each part numbered and accompanied by step-by-step instructions.
Plastic model kits are produced using injection molding, where manufacturers create a "tool" by engraving the shape of the kit's parts onto two steel plates. The plates are pressed together, and liquid styrene plastic is injected into the engraving. Once the plastic cools and hardens, the parts are removed from the tool, creating a "sprue".
The level of detail in plastic model kits can vary. Some kits feature simplified details, such as opaque windows without interior details or automotive kits without opening hoods. On the other hand, more intricate kits may include raised and recessed surface details, clear cockpit windows, detailed landing gear, and rotating propellers.
Plastic model kits come in various scales, with each subject typically having one or more common scales. For example, popular scales for aircraft models include 1/24, 1/32, 1/48, 1/72, 1/100, and 1/144, while military vehicles have scales such as 1/16, 1/24, 1/32, 1/35, 1/48, and 1/72.
Building plastic model kits can be a rewarding hobby, offering a range of challenges suitable for beginners to advanced modelers. These kits can be purchased as starter sets, which include the necessary tools, glue, brushes, and paint colours, making them ideal for those new to the hobby.
Plastic Strain: Understanding Science's Permanent Deformation
You may want to see also
Explore related products
Plastic model kits are produced by manufacturers like Airfix and Tamiya
Plastic model kits are produced by manufacturers like Airfix, Tamiya, Revell, Italeri, Dragon, and Academy Plastic Model. Airfix was one of the first plastic model kit manufacturers and was the dominant manufacturer in the UK for a long time. Because of this, all plastic model kits are often referred to as 'Airfix' in the UK.
Plastic model kits are scale models that consist of unassembled plastic parts and are available in "snap-together" form or for assembly using glue. The kits are replicas of various subjects, including military aircraft, ships, and tanks, as well as science fiction themes like Star Wars and Star Trek. The kits are produced using a process called injection moulding, where liquid styrene plastic is injected into an engraved steel plate "tool" and then cooled and hardened.
Tamiya is another well-known manufacturer of plastic model kits, particularly aircraft kits. In the 1960s, Tamiya manufactured aircraft kits in the peculiar (at the time) scale of 1/100, including famous aircraft such as the Boeing B-52 Stratofortress and the McDonnell Douglas F-4 Phantom II. While Tamiya's 1/100 scale kits never enjoyed the same success as 1/72 scale kits, the company has continued to dominate the field, representing the highest level of technology in plastic model kits.
The most common scales for plastic model kits vary depending on the subject. For aircraft, the common scales are 1/24, 1/32, 1/48, 1/72, 1/100, and 1/144. For model figures, the three common sizes are 1/72 scale (20-25mm tall), 1/35 scale (for detailed individual figures or sets to accompany military vehicles), and 1/16 scale (for larger, individual figures).
Building plastic model kits can be a rewarding hobby, but it is important to choose a kit that matches your skill level. Starter sets are available for beginners, which include glue, a brush, and the main paint colours required. More advanced kits may require additional tools such as hobby knives, sprue cutters, and different types of glue and paint.
Foam Frothing of Plastics: Methods and Techniques
You may want to see also
Frequently asked questions
A plastic model kit is a scale model that consists of unassembled plastic parts. The parts are bonded together, usually with glue, but sometimes kits are designed with parts that snap together.
Plastic model kits are made through a process called injection moulding. A model kit manufacturer will create a “tool” (two halves of a steel plate that have been engraved with the shape of the kit’s parts). They will then press the two tools together and inject liquid styrene plastic into the engraving. When the plastic cools and hardens, the parts are popped out of the tool.
The hardness of plastic is measured using the Shore hardness scale, which is an internationally accepted standard. The scale operates within a numeric range of 00 to 100, with 00 being the softest material and 100 being the hardest. Shore D, which is used for testing hard plastics, is the most relevant Shore hardness scale for plastic model kits.
