If you’re looking for ways to fill gaps in plastic, Vallejo Plastic Putty is one of the most effective products on the market. In general, the Vallejo Plastic Putty is similar to the Tamiya Putty in that it is designed to fill in gaps on surfaces made of the most common model making/miniature materials, plastic and resin.
Fuel putty is also not designed to stick to a plastic surface like it will stick to metal. Most plastics require an adhesion promoter to allow the plastic repair material to adhere to the surface.
Minerals commonly used as fillers in plastic molding compounds include calcium carbonate, talc, silica, wollastonite, clay, calcium sulfate fiber (also known as Franklin fiber), mica, glass beads and aluminum trihydrate.
Archived. If you roughen the plastic with 80 grit sandpaper and then wipe it down with some paint thinner (or something similar for cleaning), Bondo will adhere perfectly. Mix no more than you can apply in about 5 minutes.
Loctite Plastic Bonder is one of the best epoxy resins for ABS plastic, PVC, acrylic, polycarbonate, GRP and most other plastics on the market. It offers high impact resistance, is water resistant and will not shrink or crack. It’s also formulated with a fast curing time of just 25 minutes.
Is epoxy a good choice for plastic? Yes, epoxy is a good choice when it comes to using it on plastic as it creates a strong bond. They increase the structural strength of the plastic and also offer chemical resistance and some flexibility.
Fiberglass is commonly used for repairs or reinforcements to materials such as plastics, wood, metal and even plastic foam. Fiberglass will adhere to almost any surface as long as the surface is properly prepared and rubbed down.
Fillers are added to the PVC resin blend to reduce material costs, provide coloring, UV protection and lubrication. Fillers used to replace resin are generally calcium carbonate (limestone), diatomaceous earth and clay.
Fillers are particulate materials such as minerals, diatomaceous earth and talc that are added to polymers to reduce costs. Fiber reinforcements such as glass and carbon fibers are added to polymers to increase stiffness and to some extent strength.
Plastic fillers are particles that are added to plastic products to reduce production costs and improve some specific properties of the end products. As such, plastic fillers can improve tensile strength and toughness, increase heat resistance, and improve color quality along with the clarity of the plastic.
Gorilla Epoxy works well on many types of plastic (roughen surfaces before gluing) but is not recommended for use on PVC pipe, polyethylene (PE) and polypropylene (PP) plastics or certain Plastics recommended types of rubber with a high oil or plasticizer content.
Epoxy glue works best for most plastics, but if your project calls for a more flexible joint, consider using an acrylic-based glue.
STRENGTH: J-B Weld PlasticWeld has a tensile strength of 3900 PSI. SURFACE APPLICATIONS: Plastic & PVC, fiberglass, glass, ABS, composites and vinyl.