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Vacuum bagging is a widely used composite manufacturing technique that improves laminate quality, fibre consolidation and strength‑to‑weight efficiency. By applying controlled vacuum pressure during cure, excess resin and air are removed, resulting in stronger, lighter and more consistent composite parts. At Tricel Composites, we supply a complete range of vacuum bagging consumables and equipment to support professional composite manufacturing across marine, industrial, construction and automotive sectors.
Vacuum bagging involves sealing a composite lay‑up inside a flexible bag and using vacuum pressure to compact the laminate during curing. This process ensures uniform pressure across the part surface, improving fibre wet‑out and reducing voids compared to open moulding methods alone.
Vacuum bagging is commonly used alongside:
It is suitable for both prototype work and repeatable production when consistent quality is required.
When properly applied, vacuum bagging offers several performance and manufacturing advantages:
These benefits make vacuum bagging a preferred process for high‑performance composite applications.
A vacuum bagging kit provides all the essential components required to carry out the process efficiently, particularly for smaller projects or first‑time users. These kits typically include consumables such as bagging film, sealant tape, release layers and connectors.
Vacuum bagging kits are ideal for:
Tricel Composites supplies vacuum bagging solutions suitable for a range of project sizes and experience levels.
Breaker cloth (also known as breather or bleeder cloth) is a critical vacuum bagging consumable used to allow air evacuation while absorbing excess resin during cure. Positioned above the laminate, breaker cloth ensures even vacuum distribution across the mould surface.
Benefits of using breaker cloth include:
Correct selection of breaker cloth helps achieve consistent laminate thickness and mechanical performance.
Tacky tape is used to seal the vacuum bagging film securely to the mould surface, maintaining an airtight system throughout the curing process. A reliable seal is essential to achieve consistent vacuum pressure and prevent leaks.
High‑quality tacky tape offers:
Tricel Composites supplies tacky tape suitable for a wide range of composite tooling and environmental conditions.
A dependable vacuum pump for composites is essential to generate and maintain the negative pressure required during the vacuum bagging process. Pump selection depends on part size, vacuum level requirements and production duration.
Typical considerations include:
Using the correct vacuum pump ensures stable pressure throughout the cure and contributes to consistent laminate quality.
Vacuum bagging success depends on selecting consumables that work together as a system. Vacuum bagging consumables include bagging films, release layers, breaker cloths, sealant tapes, connectors and hoses. Each component plays a role in controlling pressure, resin flow and surface finish.
Tricel Composites supplies vacuum bagging consumables compatible with epoxy, polyester and vinyl ester resin systems, supporting both vacuum bagging and resin infusion processes.
Vacuum bagging materials supplied by Tricel Composites are used in:
In each case, vacuum bagging supports improved performance, consistency and production efficiency.
Tricel Composites Ireland provides a professional range of vacuum bagging products, from complete vacuum bagging kits to specialist consumables such as breaker cloth, tacky tape and vacuum pumps for composites. Our materials are selected to deliver reliable results across real‑world composite manufacturing environments.
Whether you are improving laminate quality, reducing weight or increasing production consistency, Tricel Composites offers the vacuum bagging consumables and technical support to help you achieve optimal results.
Contact Tricel Composites to discuss your vacuum bagging requirements and find the right solution for your composite application.
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