{"id":39,"date":"2025-01-19T03:49:18","date_gmt":"2025-01-19T03:49:18","guid":{"rendered":"https:\/\/www.dpsmolding.com\/catalog\/?page_id=39"},"modified":"2025-02-09T22:51:52","modified_gmt":"2025-02-09T22:51:52","slug":"what-do-we-do","status":"publish","type":"page","link":"https:\/\/www.dpsmolding.com\/catalog\/what-do-we-do\/","title":{"rendered":"What Do We Do?"},"content":{"rendered":"\n

Materials & Technologies<\/strong><\/h1>\n\n\n\n
\"Materials
Materials And Technologies: Co-Injection, Co-Injection And Gas Assist, Structural Foam<\/figcaption><\/figure>\n\n\n\n

We use all major thermoplastic resins including PP, PS, ABS, SAN, PC. We do specialize in the following processes:<\/em><\/p>\n\n\n\n

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Co-injection molding<\/strong> <\/strong>is the technique of injecting two materials (usually the inner material is enriched with a chemical foaming agent) into a mold in a controlled sequence in order to produce a thick molding with a compact outer skin and an inner core of structural foam. Co-injection molding is the best way of manufacturing thermoplastic items with a section of 5 mm or more (0.2\u201d or more), requiring a smooth impeccable surface. This particular process overcomes issues like warping, cracking, shrinkage and much of the built-in-stress found in conventionally molded thick components. Important savings can be achieved by using a quality material and coloring in the skin\/outer layer while using recycled or lower grade materials in the core. Beyond the savings, brilliant technical solutions can be obtained by pairing compatible materials enhanced with different additives which leads to radically different properties in the skin and in the core while still working as one in a single component.<\/em> <\/p>\n\n\n\n

\"Co-Injection
Co-Injection Example , Toilet Seat Detail High Gloss ABS Skin + SAN Core<\/figcaption><\/figure>\n\n\n\n

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Co-injection molding with Gas assist <\/strong>is the technique of injecting two materials (usually the inner one enriched with a chemical foaming agent) into a mold and using high pressure gas to empty the core. This is one of the best ways of producing a very thick but lightweight component and the pairing of two different but compatible materials with different properties working as one. The foaming of the inner material is counterbalanced by the high pressure gas injected into the mold cavity creating a variable density wall that can be controlled by timing the gas injection (compact high density skin material on the outer visible wall, a lower density foamed 2nd material showing increasing higher density approaching the inner wall of the hollow cor<\/em>e).<\/p>\n\n\n\n

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\"Component
Component Design With Gas Assist<\/figcaption><\/figure>\n<\/div>\n\n\n\n
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\"Co-Injection
Co-Injection With Gas Assist Example RedWood Folding Chair by Drake Corp.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

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Structural Foam Molding <\/strong>is used to produce bulky items overcoming issues like warping, cracking, shrinkage and much of the built-in-stress found in conventionally molded thick components. The surface aesthetic associated with structural foam molding can be exploited to obtain a wood-like effect through additives, material coloring and tool engraving.<\/em><\/p>\n\n\n\n

\"Structural
Structural Foam Examples Office Setas & Backs Before Upholstery<\/figcaption><\/figure>\n\n\n\n

Our Capabilities<\/strong><\/h1>\n\n\n\n

\u2022 Parts and components up to 10kg [22 lb]<\/p>\n\n\n\n

\u2022 Platens up to 1100 mm [43\u201d]<\/p>\n\n\n\n

\u2022 Columns up to 850 mm [33 1\/3\u201d]<\/p>\n\n\n\n

\u2022 Min. Mold Thickness 300 mm [11 2\/3\u201d]<\/p>\n\n\n\n

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Materials & Technologies We use all major thermoplastic resins including PP, PS, ABS, SAN, PC. We do specialize in the following processes: Co-injection molding is the technique of injecting two materials (usually the inner material is enriched with a chemical foaming agent) into a mold in a controlled sequence in order to produce a thick … <\/p>\n

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