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Vacuum Bagging: A New Direction

Silicone Vacuum Bags are durable & can be re-used time and again resulting in Reduced Labor Costs. Other advantages compared to traditional vacuum bagging materials and techniques include:
  • Fast fabrication time – Silicone vacuum bags are ready for production service immediately after full cure of silicone rubber at room temperature.
  • Reusablility of the Vacuum Bag – Resulting in reduction of traditional consumables such as bagging film and tacky tapes.
  • Self-Sealing Vacuum Bags – Results in Shorter time for bag installation onto tool assembly.

Materials Designed for Making Your Own Vacuum Bags:

EZ-Spray® Silicone 20 & 22 Platinum Cure Silicone Rubbers are made especially for spray-dispensing through Smooth-On's EZ~Spray® Jr. Spray Gun or SilCon® III Silicone Meter Mix and Spray Machine.

EZ-Spray® Silicone 20 & 22 have been developed specifically for fabricating reusable silicone vacuum bags and can be utilized in resin infusion, wet lay-up and pre-preg processes inside or outside of autoclave. Silicone vacuum bags can also be used for de-bulking layers of reinforcement prior to resin infusion or cure cycle.

Image of creating the perfect vacuum bag using EZ-Spray Silicone 20.
Image of using EZ-Brush Silicone to create a resuable eco-friendly vacuum bag. EZ-Brush® Vac Bag Silicone is a brushable platinum cure silicone developed especially for fabricating reusable silicone vacuum bags by hand. No spray equipment is required.

EZ-Brush® Vac Bag Silicone is easy to mix and apply. Mix ratio is 1A:1B by volume and rubber can be applied with a brush or spatula to vertical surfaces without sagging.

Silicone Vacuum Bags are also Eco-Friendly because they reduce consumption of traditional vacuum bagging consumables resulting in reduced environmental impact.

Making Re-usable Vacuum Bags Offers Several Advantages:

  • Reusable Bags Reduces Labor Costs Up To 90%
  • Reusable Bags Can Be Used To Quickly Produce Many Parts
  • Easy to Mix and Apply
  • Reusable Silicone Bags Resist Attack from Chemically Harsh Resins
  • Better Heat Resistance up to 500°F / 260°C
  • Non-hazardous; No Odor
  • Reusable Bags Are Good for the Environment by Eliminating Consumables Waste

Step By Step Video Sequences

Setting up the SilCon III Meter Mix & Spray Machine

Using the SilCon® III Spray Machine to Make a Custom Vacuum Bag

Resin Infusion Demo: Wind Blades Made with Custom Vacuum Bag

How to Make a Reusable Silicone Vacuum Bag for Resin Infusion

Vacuum Resin Infusion Process: Fabricating a Composite Car Seat

EZ~Brush® Vac Bag Silicone Offers Several Advantages Over Conventional Vacuum Bagging Materials

EZ-Spray® Silicone 20 Offers Several Advantages Over Conventional Vacuum Bagging Materials - PART 1

EZ-Spray® Silicone 20 Offers Several Advantages Over Conventional Vacuum Bagging Materials - PART 2

Using Smooth-On EZ~Spray® Jr. System To Create Sprayed Silicone Vacuum Bags - PART 1

Using Smooth-Ons EZ~Spray® Jr. System To Create Sprayed Silicone Vacuum Bags - PART 2

Using Smooth-Ons EZ~Spray® Jr. System To Create Sprayed Silicone Vacuum Bags - PART 3

Step By Step Photo Sequences


                   
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