Sealing surface leaks from tool feed lines.
Custom designed tool eliminates feed lines. Additional vapor polish operation improves finish.
Component requires superior surface finish for device success. Critical profile eliminates secondary polishing operation as option.
Special designed tooling allows 10 - 16 micro inch finish as machined. Burnish tool cleans part and adds high gloss.
Finished projector lens requiring high quality finish. Cast acrylic choosen for its optical clarity and light transmittance.
Cast Acrylic Component
Clear Acrylic Covers
Plastic Fabricated Acrylic Component
Cast Acrylic LED Light Pipe
Cast Acrylic Component
Cast Acrylic Manifold
Plastic manifold for use in a medical application.
Cast Acrylic, Polished
Polished Cast Acrylic Component
Acrylic Intake Component, Flame Polished
Various Acrylic Medical Components, Polished
Acrylic Components for a medical device
Acrylic Polished Manifold for a Medical Application
Military application requires high degree of consistant finish for light lens
Combination of machined finish with flame polish and buffing
Polished acrylic sight cap for the instrumentation industry
Polished acrylic sight cap
Acrylic polishing can give the best clarity and light transmittance of all the clear plastics. In both the extruded and cast form, acrylic is readily polished. Depending on configuration of the component, any of the four polishing techniques may be used; vapor polishing, buffing, flame polishing and direct machine polishing. Acrylic polishing can give the best clarity and light transmittance of all the clear plastics. In both the extruded and cast form, acrylic is readily polished. Depending on configuration of the component, any of the four polishing techniques may be used; vapor polishing, buffing, flame polishing and direct machine polishing.
5 Axis Machined Plastic Manifold
5 Axis machining capabilities allows Connecticut Plastics to shrink lead times and help you get your device to market faster.
Acrylic plastic components, after machining can be polished to optical quality, to allow observation.
Acrylic Manifold manufactured on a 5 axis machining center, vapor polished, then assembled with brass inserts.
Sample of an optical quality fluidic manifold, precision machined in acrylic then vapor polished, so that fluid running through channels can be observed. Brass inserts by Connecticut Plastics, an additional service that we offer. Small assemblies.
Polished acrylic components are a very popular option for engineers when considering the design of optical devices. Acrylic is known for its excellent light transmittance, clarity and lack of color. Unfortunately, acrylic does not polish to an optical finish as easily as other materials such as polycarbonate, polysulfone and ultem. Interior surfaces such as tapped holes are difficult to achieve high clarity.
Acrylic polishing can give the best clarity and light transmittance of all the clear plastics. In both the extruded and cast form, acrylic is readily polished. Depending on configuration of the component, any of the four polishing techniques may be used; vapor polishing, buffing, flame polishing and direct machine polishing.
Vapor polishing utilizes a solvent vapor to flow the surface of the acrylic plastic. This method is good for internal features however its effect on acrylic is to produce more of a translucent finish. Typically, the better the machined finish, the better the end result with vapor polishing. Part cleanliness is critical. We are happy to vapor polish your machined acrylic plastic parts; however, for best results, both machining and acrylic polishing should be done by Connecticut Plastics.
Buffing of acrylic produces a good finish. Buffing is mostly used on exterior surfaces in larger components. Buffing utilizes a spinning cotton wheel with cutting compound. Being a mechanical process, the wheel leaves microscopic scratches and can leave a haze or uneven clarity on acrylic.
Flame polishing utilizes a hot flame to flow a surface. Much like spray painting, finish quality depends on the operator’s skill level. Done properly, flame polishing can produce some of the clearest finishes.
Direct machine plastic polishing utilizes specialty tooling to produce polished finishes directly from a machine tool. This method, while the most technical, can produce complicated surface profiles with near flawless finishes.
Acrylic polishing requires special skill since acrylic is a stress sensitive material and is fairly brittle. It can surface stress crack or craze due to poor machining or stresses setup from polishing. For the most stable, stress-free component, always specify an annealing cycle after machining, otherwise stress cracking will occur in service.