Vacuum Bagging

Sino Composite, the forerunner that introduces vacuum resin infusion process (VRIP) into the Chinese composite market, has developed itself into a comprehensive solution provider of vacuum bagging in aerospace, wind energy, marine and sports equipment, etc.With its whole series of vacuum bagging products with all temperature rangas well as the full-scale technical training and onsite support.

Vacuum Bagging Process

Vacuum Bagging is a technique that imposes vacuum pressure to the surface of the object between the mouldtooland the vacuum bag to optimize the fiber-to-resin ratio of the product. Therefore, it can improve the mechanical performance of the product.


Usually, the vacuum bagging process canbe classified as two types:

1. Vacuum bagging for resin infusion. Infuse the resin to dry preform of fabrics layers with a stable pressure.

2. Vacuum bagging for prepreg or wet lay-up Impose vacuum pressure onfabricsimpregnated with resin.

[ Vacuum bagging for resin infusion ]

1.Resin tank

2.Vacuum bagging film


4.Fiber reinforcements

5.Structural core materials



8.Resin reservoir

9.Vacuum pump

[ Vacuum bagging for prepreg or wet lay-up ]

1.Sealant tape

2.Mould release agent

3.Breather/Bleeder fabric


5.Release film (perforation or none)



8.Vacuum hose

9.Quick connector

10.Vacuum valve

11.Pressure sensitive adhesive tape

[ Vacuum Bagging Materials ]


Product Model Thickness(μm) Max Width(m) Temerature(℃) Material Feature Perforation
BAGGING FILM CVF120 75/80 16 120 Nylon Polyester Extruded Big width,Vacuum lnfusion
CVF150 65/75 8 150 Vacuum lnfusion
CVF170 50/65/70/75 9 170
CVF200 50/75 6 200 PA
CVF230 50/75 3 230 Modified PA Autoclave
CVF426 50/75 1.5 426 PI Extraordinarily high temperature system,Autoclave
RELEASE FILM CVR120 25 1.52 120 PE Ambient Temperature Multiple
CVR150 50 150 PP Intermediate Temperature
CVR230 20/25/30/50 230 ETFE Autoclave
CVR260 20/25/30/50 260 FEP
CVR315 25/50 1.5 315 PTFE

Product Model Weight(g/m²) Temperature(℃) Material Feature
PEELPLY CVP180 60-105 180 PE Cost-effective
CVP200 60-105 200 PA6
CVP230 60-105 230 PA66 High Temperature System
CVP260 Multiple 260 Glass fiber coated with PTFE
CVAP150 160 150 Nylon and Membrane Semi Permeable Fabric Supported Membrane

Product Model Specification thickness*width*length Temperature ℃ Feature
SEALANT TAPE CVS120 3mm*12mm*15m 120 Ambient Temperature
CVS150 3mm*12mm*7.5m 150
CVS180 180 Intermediate Temperature
CVS210 210 Medium-high Temperature
CVS230 230 High Temperature

Product Model Width(m) Temperature(℃) Material feature
PRESSURER SENSITIVE TAPE CVPS60 Customizable 60 Cloth tape coated on both sides Temporary fixation at ambient temperature
CVPS148 148
CVPS180 180 PET double sided tape Temporary fixation at high temperature
CVPS200 200 PET coated with silicone adhesive
CVPS260 260 Glass fiber coated with PTFE
CVPS315 315 PTFE

Product Model Weight(g/m²) Width(m) Temperature(℃) Material feature
BREATHER CVB190 150/250/340 Customizable 190 PE Cost-effective
CVB200 140/237/339 200
CVB230 200/340/440 230 PA High Performance
CVB400 203 400 GF Extraordinary high temperature, autoclave
INFUSION MESH CVME 80-250 Customizable 120 PE Extruded
CVMW 135/160 100 PP/PE Woven

Product Specification Temperature(℃) feature
TOOLS CVT-Value 1/4" threaded coupling 200-270 Aluminum/Stainless steel/Carbon steel
CVT-Rapid Connection 200-287 Cast iron/Stainless steel/Carbon steel
CVT-Hose 3/8"ID*1/4"NPT 232 Metal and silicon rubber case
3/8"HOSE,1/4"MNPT 260-270
CVT-Vac 1/4*threaded coupling -40-60 With silicon rubber case
CVT-Rubber 1/16"*54" Rubber
CVT-Vacuum Pump System 100-600m³/hour
CVT-Resin Collector 10-15L Cast iron/Stainless steel
CVT-PE Tube/Spiral Tube/Ω Tube/Three Way Inlet/Resin Infusion Connector Customizable 120 PE/PP/PA
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