Polychem Middle East supplies a complete range of vacuum infusion and vacuum bagging consumables for advanced composite manufacturing. These materials are essential for producing high-quality, lightweight composite structures with low void content and superior mechanical properties compared to standard hand lay-up processes.
Our consumables range is used by boat builders, aerospace manufacturers, sports equipment producers, and industrial composite fabricators across the UAE and broader region. All products are selected for their dimensional consistency, temperature resistance, and compatibility with standard epoxy and polyester infusion systems.
Our Products
Our polyester film range is engineered for pipe manufacturing and high-temperature composite processes. Download the Technical Data Sheet for each product below.
RELEASE FILM — FOR POLYESTER / VINYLESTER PIPES
Specialist release film designed for the manufacture of polyester and vinylester GRP pipes. Acts as a barrier layer during the curing process to prevent resin adhesion to the mold, ensuring clean demolding, a smooth internal pipe surface, and an efficient production cycle in filament winding and centrifugal pipe processes.
Download TDSSPECIAL FILM — FOR HIGH TEMPERATURE PIPES
High-performance polyester film formulated for pipe manufacturing applications involving elevated cure temperatures. Maintains dimensional stability, release properties, and barrier integrity under demanding thermal conditions, enabling production of high-temperature rated GRP and composite pipe systems.
Download TDSProduct Range
A complete vacuum infusion setup requires multiple consumable layers, each serving a specific function in controlling resin flow, fibre consolidation, and surface quality. Polychem Middle East stocks all the key components for both vacuum bagging and resin infusion processes.
- Vacuum Bags — nylon and polyamide films rated for high-temperature cure cycles
- Release Film (Polyester & Non-Perforated) — clean release between laminate and bagging film
- Peel Ply — woven nylon that creates a bondable surface texture on cured laminates
- Flow Media / Infusion Mesh — high-permeability layer for rapid resin distribution
- Sealant Tape — tacky tape for airtight bag sealing around mold perimeters
- Spiral Wrap & Infusion Lines — resin feed and vacuum line management
About Polyester Film
Polyester film plays a critical role in the manufacturing process of polyester and vinylester pipes, serving as a release film that aids in the smooth production and easy demolding of these composite materials. This specialized film acts as a barrier layer during the curing process, ensuring that the resin or laminate does not stick to the mold, thus enabling a clean and efficient production cycle.
Polyester film designed for high-temperature pipes offers exceptional performance in challenging conditions. Polyester films for pipe manufacturing not only streamline the production process but also enhance the quality and functionality of the finished pipes, making them a crucial material for applications requiring both high performance and ease of manufacturing.
Release Barrier
Acts as a barrier layer during curing to prevent resin from bonding to the mold surface, ensuring clean and damage-free demolding of pipe components.
Smooth Production Cycle
Enables an efficient, uninterrupted production cycle in filament winding and centrifugal pipe processes by preventing mold fouling and resin build-up.
High-Temperature Performance
Specialist high-temp film variants maintain full release performance and dimensional stability under elevated cure temperatures for demanding pipe applications.
Polyester & Vinylester Pipes
Specifically engineered for use in GRP pipe systems made from polyester and vinylester resins, ensuring compatibility and optimal release performance.
Enhanced Pipe Quality
Contributes to a consistently smooth internal pipe surface finish, improving flow characteristics and reducing post-production finishing requirements.
High-Performance Applications
Suitable for industrial, chemical, and infrastructure pipe applications where both manufacturing efficiency and finished pipe performance are critical.
Process Applications
Vacuum infusion (VARTM) produces laminates with fibre volume fractions of 55–60%, significantly higher than hand lay-up, resulting in stronger and lighter parts. The peel ply creates a mechanically prepared bondable surface for secondary bonding operations. Flow media controls resin distribution rate, ensuring complete fibre wet-out before gel.
Low Void Content
Vacuum consolidation eliminates entrapped air and achieves significantly lower void content than hand lay-up for stronger, lighter parts.
Process Versatility
Consumables suitable for both ambient and elevated-temperature cure cycles, compatible with epoxy and polyester infusion systems.
Complete System
All components from release film to sealant tape — everything needed for a complete vacuum infusion or bagging operation.
Frequently Asked Questions
Peel ply is a woven nylon fabric that cures into the laminate surface and peels off cleanly, leaving a textured, bondable surface for secondary bonding. Release film is a non-adhesive smooth film placed between the laminate and bagging materials to prevent sticking without leaving any residue.
Yes, polyester resins can be used in vacuum infusion, but care must be taken with styrene emissions and the reaction speed. Epoxy infusion resins are more commonly preferred for structural applications due to lower shrinkage, better fibre adhesion, and no styrene emissions.
Flow media and vacuum bag area should exceed the part size by at least 150–200mm on all sides to allow for sealing. Flow media can cover the full laminate area or be placed in a grid pattern for large flat panels. Contact our technical team for guidance on specific part geometries.