Composite Manufacturing

Advanced Composite Manufacturing

Pfaff Technologies provides aerospace-grade composite manufacturing for high-performance applications across Canada and North America. With more than 25 years of combined experience, our team is proficient in all composite manufacturing processes, including the use of prepreg (both in or out of autoclave), resin infusion, and wet lay methods.

From carbon fibre race car components to complex aerospace structures, we manufacture composite parts that deliver exceptional strength and performance while maintaining strict, precise quality control. Whether you require a single prototype or full-scale production, our advanced facilities and materials expertise ensure consistent, repeatable results for aerospace, automotive, marine, and defence applications.

Pfaff Technologies integrates aerospace-grade precision, military-level durability, and advanced additive manufacturing to support organizations across multiple industries, with a focus on accelerating innovation, improving reliability, and maintaining a competitive advantage.

What is Composite Manufacturing?

Composite materials combine two or more distinct materials to create a final product with superior properties to either component alone. In structural composites, continuous or woven fibers (carbon, glass, aramid) provide strength and stiffness, while the resin matrix (epoxy, vinyl ester, polyester) binds the fibers together, transfers loads, and protects against environmental damage.

Why Composites?

‍The primary advantage of composite materials is their exceptional strength-to-weight ratio—often 5-10x better than steel or aluminum. This makes composites ideal for weight-critical applications in aerospace, high-performance automotive, and marine structures.

Contact Us

Key Benefits

  • Lightweight: 20-70% weight savings compared to metals
  • High Strength: Strength properties comparable or superior to metals
  • Corrosion Resistance: No rust, ideal for marine and chemical environments
  • Design Flexibility: Complex geometries and integrated structures
  • Fatigue Resistance: Superior fatigue life compared to metals
  • Tailored Properties: Fiber orientation customized for load paths
 
Composite Solutions

Our Composite Manufacturing Processes & Capabilities

Autoclave Curing (Prepreg Composites)

Autoclave curing is the gold standard for high-performance composite manufacturing, combining heat and pressure to produce parts with superior mechanical properties, minimal voids, and excellent surface finish.

The Autoclave Process:

Prepreg (pre-impregnated) carbon fiber or fiberglass is laid up on a tool, vacuum bagged, and cured in our autoclave under controlled temperature (typically 120-180°C) and pressure (up to 6-8 bar / 85-115 psi). This pressure compacts the laminate, removes air voids, and ensures optimal resin distribution.

Vacuum Infusion (VARTM / Resin Infusion) 
 
Vacuum-Assisted Resin Transfer Molding (VARTM), also called resin infusion, is an efficient process for creating large composite structures. Dry fiber reinforcements are laid up on a mold, vacuum bagged, and liquid resin is drawn through the fibers using vacuum pressure.
 
The Resin Infusion Process:
 
Dry carbon fiber or fiberglass fabrics are positioned on the mold with core materials (foam, honeycomb) if needed. The layup is sealed in a vacuum bag with resin inlet and vacuum outlet ports. When vacuum is applied, atmospheric pressure compacts the fibers while simultaneously drawing resin through designed flow channels to saturate the reinforcement. The part then cures at room temperature or with applied heat.
 
Resin infusion delivers excellent results for large, complex parts where autoclave processing isn’t practical or economical.

Wet Layup / Hand Layup

Wet layup, or hand layup, is the most fundamental composite manufacturing process. Dry fiber reinforcements are manually saturated with resin, laid into a mold, and cured at room temperature or with mild heat.

The Wet Layup Process:

Operators apply release agent to the mold, then lay dry carbon fiber or fiberglass fabrics while manually applying liquid resin using brushes, rollers, or squeegees. Layers are built up to achieve the desired thickness and fiber orientation. The part is then allowed to cure, with optional vacuum bagging to improve consolidation and remove excess resin.

Wet layup provides maximum flexibility for custom fabrication, rapid prototyping, and repair work.

Get started today!

Our composite team evaluates your requirements—strength, weight, appearance, volume, budget, and timeline—to recommend the optimal manufacturing process. Contact us for a free consultation.