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Resin infusion has become one of the most widely adopted manufacturing methods in modern composite production. Valued for its ability to produce high‑quality, lightweight laminates with excellent consistency, the vacuum infusion process is used extensively across marine, industrial, construction and automotive sectors. At Tricel Composites, we supply a comprehensive range of materials and accessories that support efficient, reliable resin infusion for professional composite manufacturers.
Resin infusion is a closed‑mould process where dry reinforcement fabrics are laid into a mould, sealed under vacuum and infused with resin through controlled flow paths. The vacuum draws the resin evenly through the laminate, wetting out fibres while removing air and excess resin.
Compared to open moulding methods, resin infusion offers:
This makes resin infusion a preferred method for structural composite components where performance and quality control are critical.
The vacuum infusion process relies on creating a fully sealed system before resin is introduced. Once full vacuum is achieved, resin is drawn from a feed line through the laminate and into a resin trap, ensuring controlled impregnation.
Key stages of the process include:
Attention to detail at each stage ensures uniform flow, complete fibre wet‑out and high‑quality finished parts.
Successful infusion depends on using appropriate resin infusion equipment capable of maintaining consistent vacuum pressure and controlled resin flow. Equipment selection varies depending on part size, complexity and production requirements.
Typical resin infusion equipment includes:
Tricel Composites supplies infusion‑compatible equipment designed to integrate seamlessly with modern composite manufacturing environments.
Infusion spiral wrap is a key flow component used to distribute resin quickly and evenly along the resin feed line. Positioned at strategic points in the mould, spiral wrap helps deliver resin across wide areas, reducing infusion time and minimising flow inconsistencies.
Benefits of using infusion spiral wrap include:
Spiral wrap is commonly used alongside other flow aids to fine‑tune resin movement through complex moulds.
Flow media is placed above the reinforcement layers to increase resin flow speed across the surface of the laminate. By creating a high‑permeability layer, flow media allows resin to travel efficiently before being drawn down through the fibres below.
Advantages of using flow media include:
Correct selection and placement of flow media are essential to ensure balanced infusion and optimal laminate performance.
While resin infusion can be used with various resin systems, epoxy resins are often preferred due to their low viscosity, mechanical strength and controlled cure profiles. The correct pairing of resin, reinforcement and infusion consumables is critical to achieving reliable results.
Tricel Composites supplies resin infusion‑compatible materials chosen to perform consistently under vacuum and integrate smoothly with common composite processing methods.
Resin infusion materials and equipment supplied by Tricel Composites are used in a wide range of applications, including:
In each sector, resin infusion supports improved structural performance while maintaining cost and weight efficiency.
Tricel Composites Ireland provides a complete support package for resin infusion, from essential resin infusion equipment to specialist consumables such as infusion spiral wrap and flow media. Our products are selected to meet the demands of real‑world composite manufacturing, whether for prototypes or production environments.
By combining high‑quality materials with technical expertise, Tricel Composites helps manufacturers achieve consistent, high‑performance results through the vacuum infusion process.
Contact Tricel Composites to discuss your resin infusion requirements and ensure the right materials and equipment for your composite application.
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