Advantages of thermoplastic injection molding production?

Thermoplastic injection molding supports rapid cycle times, enabling high‑volume production with consistent output. The process allows for tight tolerances and complex geometries, even for intricate or multi‑feature components.

Types of material used at Skyline?

Commodity Thermoplastics

• Polypropylene (PP): Lightweight, chemical‑resistant, fatigue‑resistant

• Polyethylene (PE): Tough, flexible, high impact resistance

Engineering Thermoplastics

• Acrylonitrile‑Butadiene‑Styrene (ABS): Strong, tough, excellent surface finish

• Acrylonitrile‑Styrene‑Acrylate (ASA): Strong, tough, better UV-resistance than ABS

• Polycarbonate (PC): High impact strength, optical clarity

• Nylon (PA): High strength, wear‑resistant, ideal for gears

• Acetal (POM): Low friction, dimensionally stable, great for gears

• PBT: Strong electrical properties, chemical‑resistant

• PPS/PE: Low Warpage, Low Shrinkage, Low Moisture Absorption, Dimensional stability

Elastomeric Thermoplastics

• Thermoplastic Elastomer (TPE): Rubber‑like feel, recyclable, ideal for seals and grips

• Thermoplastic Polyurethane (TPU): Abrasion‑resistant, flexible, used in protective cases

Color & Additives

• Color feeders at the press help keep consistent production without any custom mixing process. Coloring your plastic part requires matching and working with our color house suppliers to provide samples to match our customer requirements.

• Black color: Cheapest color option. Most material suppliers provide black color as a base option. If not we have most common materials were able to color black in house. Some specialty materials we would have to us suppliers.

• Additives: There is a wide range of specialty additives you can use for your products. Glass filled, mineral filled, UV stabilizers, anti-microbial, scratch resistance, impact modifier, flame retardants, PTFE, heat stabilizer, and many others. Some can be input by the material supplier and some can be introduced with a additive feeder at the press.

What size molds can Skyline run?

Our equipment accommodates a wide range of mold sizes, from compact 6 × 6 × 6‑inch tools to large 39 × 39 × 39‑inch molds. This flexibility allows us to support everything from small precision components to large, complex parts.

What part sizes can Skyline produce?

Depending on the material and design, we can mold parts as light as 0.05 grams and as heavy as 800 grams, giving customers broad freedom in part geometry and application.

How long will our Tool last and who is responsible for it?

At Skyline Plastics, tool longevity is a core part of our commitment to quality. Whether your mold is built in‑house or produced by one of our trusted local tool shops, we take full responsibility for maintaining it throughout the agreed‑upon shot count. Many of the molds we’ve built internally are still running smoothly after well over one million cycles, demonstrating the durability and care that go into every tool we support.

When should your tools be evaluated for wear?

Mold longevity depends on its construction class. Below is a general guideline showing when a tool should be inspected for potential wear, maintenance, or replacement of critical components:

• Class 101 Tool: Evaluate at 1,000,000+ shots

• Class 102 Tool: Evaluate at 500,000 shots

• Class 103 Tool: Evaluate at 250,000 shots

• Prototype Tool: Evaluate between 1,000–10,000 shots, depending on materials and build method

These ranges help ensure your mold continues to run reliably and produce consistent, high‑quality parts.