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Siga Plastics LLC

Siga Plastics is a custom manufacturer of injection molded plastics parts. Materials handled include: ABS, Polypropylene, high impact polystyrene (Hips), Acrylic, polycarbonate, lexan, Nylon, Nylon glass fiber, HTPE / LDPE , ASA, Acetal, PPS Ryton, PVC.

We also offer the production of precision high quality molds, dies and tooling. We have over 25 years of experience providing prototype and production plastic injection molds to businesses in southern California. No part is too complex, whether from a finished mold design or a part drawing.

Products and Services

Plastic injection mold
Mold engineering & design
Repair & revision of existing molds
Prototype molds
Wire EDM
CNC Sinker EDM
High speed machining

Injection molding can be: short run to long run, production just in time, tool room, mold maintenance, parts assembly, packaging, drilling, parts delivery. We have 6 Molding Press Machines with capabilities from 50 to 150 tons.

Injection molding equipment: mold chiller, water tower, plastic dryer, air compressor, plastic grinder, vertical CNC milling machine, lathe, drill, band saw, surface grinder.

Industries served; electronics, automotive, industrial.

Manufacturing Processes

Siga Plastics is proud to be ISO 9001:2015 Certified.

Siga Plastics, LLC and its employees are committed to meeting customer and legal requirements in order to achieve customer satisfaction. We will always strive to provide quality products on time and continually improve our Quality Management System.


Product Acceptance by Customer  ≥ 95%
On Time Delivery ≥ 90%
Customer Satisfaction ≥ 3.5
Time from PO receipt to Entry ≥ 95% within 2 business days
Supplier Quality ≥ 90%
Supplier OTD ≥ 90%


To provide exceptional quality custom injection molding and support to customers along with exceptional learning, growth and financial opportunities for Siga Plastics employees and owners.


To be at the forefront of creating value for our customers by offering quality custom injection molding with unmatched service.


Ethics - We always exercise our duties with honesty and integrity .
Teamwork - We respect and support each other, without blame, to create a stronger and better performing team.
Customer Service - We respond to every customer quickly, thoroughly, professionally and with courtesy.

Contact This Manufacturer

Company Name: Siga Plastics LLC

Category: Plastic Product Mfg

Location: Vista

Contact Person: Alejandro Silva

Phone: 760-842-8415

Email: @



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