Silicone Compression Molding

Manufactures compression molded custom rubber parts to service quick turn around requirements and tackle specialty applications for technology-driven markets. Rubber compression molding includes silicone rubber compression molding, fluorosilicone compression molding and electrically conductive compounds such as nickel-graphite filled silicone and silver-plated aluminum filled fluorosilicone.

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The Machine

 

The custom injection molding of Liquid Silicone Rubber (LSR) uses much of the same process and equipment as injection molding.

In both processes, the mold is heated and closed before the uncured rubber is injected. Unlike high consistency rubber (HCR), also known as gum stock, liquid silicone is a high viscosity liquid that comes in two parts, Part A and Part B. Both parts are liquid but one part contains the platinum compound.

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The two parts are mixed and delivered to the barrel of the injection press via a mixing pumping system. The liquid silicone is then injected into the mold. Once in the mold, the silicone cures much faster than typical high consistency silicone due to its platinum cure system.

As a result of this rapid cure cycle, the part price is frequently lower than parts made using conventional molding processes such as compression, transfer and injection molding.

PolyJet Technology

PolyJet 3D printing is similar to inkjet printing, but instead of jetting drops of ink onto paper, PolyJet 3D Printers jet layers of curable liquid photopolymer onto a build tray.

PolyJet 3D Printers jet layers of curable liquid photopolymer onto a build tray.

The process begins with re-processing where build-preparation software calculates the placement of photopolymers and supports material from a 3D CAD file.

Then the 3D printer jets, and instantly cures tiny droplets of liquid photopolymer. Very fine layers collect on the build tray to create exact 3D models or components.

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3D printers using PolyJet technology work with a vast array of materials, including Rigid Opaque and Rubber-like materials in hundreds of vibrant colors, clear and tinted translucent shades, Simulated Polypropylene, and specialized photopolymers for 3D printing in the dental and medical industries. Hundreds of composite materials add to the possibilities.