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Injection Molding


Injection molding is a manufacturing process for producing parts by injecting material into a mold. Injection molding can be performed with a host of materials, including metals, glasses, elastomers, confections, and most commonly thermoplastic and thermosetting polymers.  Injection molding is widely used for manufacturing a variety of parts, from the smallest components to entire body panels of cars.



Our Injection Molder(s) use engineering resins such as thermoplastic urethanes, rubbers, super tough nylons, Ultem and Valox. 



Industrial, custom rubber parts by utilizing:


Injection Rubber Molding - Rubber injection molding generally consists of rubber strips fed into a chamber for preheating. The rubber is then forced into an injection tool with hydraulic pressure. The rubber travels through a runner system, through the feeders into the cavity that forms the part configuration.  This is different from the plastic injection molding process where the materials are cooled under less pressure.



Advantages of rubber injection molding:

  1. Reduced cycle time
  2. Flashless tooling
  3. Economical process for high volumes of medium-to-high precision components
  4. Minimal material waste


Transfer Rubber Molding - Transfer molding is similar to injection molding in that it uses pressure to force rubber through feeders and then into the cavity that forms the rubber part configuration. The main difference is with the use of a pot and force, or in the instance of the transfer press, a pot and ram. A main benefit to this operation is allowing the tool to completely close prior to rubber being fed into cavity. This allows for minimal flash, quick color change over and aids in feeding of difficult or complex part geometries.



Compression Rubber Molding - Compression rubber molds are generally the least expensive of the three types of tooling that are typically used in the rubber industry. Part configuration, material, and estimated run quantities are some of the considerations used to decide the best tooling approach. Compression type tools are often the preferred choice when budget and production quantities are limited.


As shown above, there are no feeders used in compression molds. While the mold is open a rubber perform (slab, strip or extrusion) is placed in the cavity and then the tool is closed, and pressure is applied. This compresses the rubber pre-form into the desired shape, creating your part.


Compression molding is often chosen for medium hardness compounds in low volume production or in applications requiring particularly expensive materials. This process helps to minimize the amount of overflow, or flash created during the rubber molding process.


Die Cut Rubber Parts


Our manufacturer uses the Die cutting process of using a die to shear webs of low-strength materials, such as rubber, fiber, foil, cloth, paper, corrugated fiberboard, paperboard, plastics, pressure-sensitive adhesive tapes, foam and sheet metal.


Urethane Casting


Cast polyurethanes are a diverse and versatile group of materials that are known for abrasion resistance, chemical resistivity, stability in water, ease of processing and relative low cost. Cast polyurethanes are found in almost every industry. Molds of cast urethanes are relatively inexpensive and can be made from a variety of materials.

Cast polyurethanes are a good substitute for a number of materials where improved performance is required. Urethanes can be made as soft as gum rubber or as hard as a golf ball. 

Our urethane caster uses thermoset polyurethanes ranging from 10 Shore A to 80 Shore D, which can be produced in any color for high and low volumes. 


O-Rings / Gaskets / Sealing Products


We represent a full-line stocking distributor and custom manufacturer of O-rings, Minnesota quad rings, hydraulic seals, U-cups, piston cups, vee packings, wipers, lathe cuts, Teflon® products, Teflon® spring loaded & Teflon® oil seals, mechanical shaft seals, gaskets, braided packings, bearing guards, sealants, adhesives, lubricants, silicone fluids & greases, RTV's, UV curing equipment, adhesives & coatings, dispensing equipment & a wide variety of other products in standard, metric and custom sizes and materials.




Our manufacturers can provide secondary machining of plastic or rubber components.


Power Cords


Custom designed and manufactured electrical power cords, extension cords, wire harness, international power cords, and detachable cord sets for every industry.




Prototype or pre-production plastic or rubber parts can be made utilizing the various processes.


P.O. Box 54
Allison Park, PA 15101


Phone: (412) 487-3373
FAX: (412) 487-1575
Mobile: (412) 551-7850