Composites and Vacuum Bagging Materials

Transparent Silicone for Vacuum Bagging | Smartech International

For the best bagging materials, you’ve found the right page. With the precision of German design, Smartech offers you the best in industrial bags that will set your business and projects apart.  Steinbach products are easy to use and offer unparalleled durability.

We know that your production has specific needs. The materials we provide you must be strong, long lasting, and fit for your task. That’s one reason why Smartech specializes in technical applications – it allows us to hone our products to give you the maximum performance you need in a reusable vacuum bag.

Your Vacuum Bagging Process is Important To Us

Your end product depends is based on the excellence of your bagging material. This will determine the amount and uniformity of resin in your part, its consolidation and the elimination of voids.

That’s why we stock a wide variety of bagging material, to help with any job you undertake.

Don’t be shy if you’ve got a question about the right material for your process. Call us now at 704-362-1922!

About Vacuum Bags

Believe it or not, you can make a vacuum bag out of anything.

There are only three essential requirements:

1. That the bag be strong enough to create a vacuum.

2. That is be supple enough to mold to the part it’s bagging.

3. That it maintain these characteristics under high temperatures.

However, bags must also withstand all of your handling at layup, not wrinkle, provide a complete seal and conform to the deepest channels in a part. Steinbach’s high elongation materials virtually eliminate bridging without creating folds,


Our Reusable Bags

Resealable Vacuum Bags | SmartechSteinbach’s new reusable bags offer a great improvement over throw-aways by helping you save money, time and resources.

They allow you to complete more projects and make gains in your business.

We only use the highest strength silicone materials, which can sustain perfect negative pressure while reaching temperatures of over 400 degrees Fahrenheit.

Our bags are always made to your custom specifications. Steinbach’s material width of up to 118″ will cover the majority of industrial applications, and their high elongation mixtures will help you avoid bridging.


We help you by providing options you just can’t find everywhere else. Let us show you the power and utility that comes from Steinbach’s silicone sheeting.

The Advantages of Reusable Vacuum Bags

Enjoy reduced cost use, fewer expendable materials and waste products, savings in labor, minimal creative steps, increased part consistency and complexity. See our itemized list of material and product specs.

Our silicone bags are available in a variety of durometers with smooth or textured surfaces. Vertical or horizontally oriented vacuum valve fittings, as well as thermo-couple pass-through valves provide the options your application requires.

You can enjoy all the money and time saving benefits of our progressive materials and quality construction right now. Just call us today!

How Our Materials Help Your Autoclave Processing

Your autoclave processing is made simpler by our silicone sheeting. You have a choice in what materials you use during this process. We guarantee you that ours are equal to the power of your autoclave. We stand the heat, pressure and duration of application again and again.

How Our Materials Help Your Out-of-Autoclave Processing

When you’re curing a product, you’ll want to reach the proper fiber count, while at the same time ridding it of voids. For those who use newer OOA processing, you can achieve this by using a closed mold and then activating negative pressure, positive pressure or heat.

Remember, to speak to us about advanced vacuum bagging materials for your autoclave process, call us at 704-362-1922.

Vacuum Bagging FAQs

Essentially, yes! Our calendared silicone and natural rubber bagging material performs the same function as an RVB or silicone counter mold. However, pre-cured calendared material is more durable and easy to use than the brush or spray applied systems. Our high elongation materials are suitable for all but the most severe profiles.

The color is really just to make it easier to differentiate between different material durometers.