Plastic fabrication built to spec, on time, every time.
Phillips Bros. Plastics is a Southern California plastics shop offering thermoforming, CNC machining, plastic welding, and custom fabrication from prototype through high-volume production.
- ✓ Quantity of 1 to 100,000+
- ✓ Multi-axis CNC machining
- ✓ Heavy & thin-gauge thermoforming
- ✓ ITAR-friendly workflow
Core services

Thermoforming
Heavy-gauge and thin-gauge thermoforming for production and prototype runs.

Custom Plastic Fabrication
One-off prototypes through high-volume production. Quantity of 1 to 100,000+.

CNC Machining & Plastic Welding
Precision multi-axis CNC machining and certified plastic welding.

Decades of plastics experience. One shop. One point of contact.
We've been forming, machining, welding, and finishing plastic for industrial, commercial, defense, and consumer clients since 1955. Bring us a drawing, a sketch, or just a problem to solve — we'll work with you from concept to finished part.
Capabilities

Trays & Pans
Thermoformed trays, pans, and containment vessels in a wide range of resins.

Enclosures
Equipment enclosures, control housings, and protective covers built to spec.

CNC Machined Parts
Tight-tolerance machined components from engineering-grade plastics.

Radomes
Aerospace and defense radomes engineered for RF transparency.
Industries








Have a project to quote?
From a single prototype to long-run production, send us your spec and we'll respond with a quote and lead time.