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Benefits of Dip Molding Process

As pioneers in the field of dip molding, StockCap is proud to have contributed so greatly to the evolution of this unique manufacturing process. Originally used in the art of candle making, dip molding has grown into a high-tech manufacturing method that competes head to head with other plastic and rubber molding processes.

In its basic form, dip molding involves the heating of a metal mold with the internal dimensions of the desired part. These heated molds are then immersed or "dipped" in a tank of liquid plastisol (PVC). The heat from the mold attracts the cool plastisol and the part is formed. The molds are extracted from the liquid and heat cured. After the parts are cured, they are cooled, stripped from the molds, and packed for shipment or secondary operation.

Benefits of Dip Molded Caps and Plugs

• Caps of varying lengths can be made with no tooling charge.
• Vinyl material stretches to fit odd shapes and easily conforms to beaded or flared tubes.
• Vinyl material will not crack or split like Low Density Polyethylene.
• Vinyl material does not shred when capping or plugging threaded items.

Benefits of Custom Dip Molding

• Low tooling costs...typically a fraction of injection molding.
• Quick and inexpensive prototypes.
• Short lead-times on custom tooling...weeks versus months.
• Innovative materials and textures.
• More vibrant colors can be achieved with vinyl.
• No internal stress molded into parts.
• Large parts can be made without significant tooling investment.
• Multi-Dipping capabilities allow us to design products with two colors or materials on one part - typically used for making products with durable inside liners and more consumer friendly exteriors.

For more information on Custom Dip Molding, please visit our Vinyl Dip Molding Section.