GORE® RASTEX® Sewing Thread for Filtration Applications
Our high temperature industrial thread is engineered for the demands of filtration applications, and withstands exposure to chemicals, high temperatures, abrasives, and moist environments.
High Performance, Low Shrinkage at Elevated Temperatures
GORE® RASTEX® Sewing Thread combines excellent chemical resistance, superior strength, greater flexibility, high abrasion resistance and dimensional stability. It’s engineered for outstanding sewability and will not fibrillate.
The Right Choice for Reliable Seams
Key Features
- 30 years of proven performance
- Engineered for excellent sewability
- Made from 100% ePTFE
- Low shrinkage at elevated temperatures
- High tenacity at room and elevated temperatures
- Non-aging
- Generally chemically inert
Key Benefits
- GORE RASTEX Fibers S010T1 offers up to 20% material savings due to higher yield/kg compared to competitive thread
- Can replace many high performance, high temperature threads to simplify inventory and logistics
- Reduces change-out time and labor
- Minimizes machine adjustments
- Reduces potential for production errors
- Does not degrade in chemicals, high temperatures or moist environments
Because of its high yield, lower denier MHT GORE® RASTEX® Sewing Thread can provide lower cost per meter than many higher denier threads.
Premium PTFE Thread for Wet and Dry Filtration Applications
- Ideal for hot gas filtration in the energy, minerals, chemicals and metals industries
- Unaffected by moist environments, it is equally well suited for electrolytic cells and other liquid filtration applications
Technical Information
Why Do Sewn Filter Bags and Cartridges Fail?
Filter bags, cartridges, and other sewn filter media are exposed to extreme temperatures chemicals, abrasives, and, occasionally, moist environments, for extended periods. These conditions degrade the filter media and thread, and the thread often gives out first. In some cases the thread is not appropriate for the application, or it simply wears out from chemical, temperature, or abrasive attack before the filter media.
Why Is the Breaking Strength of PTFE Filtration Sewing Threads So Crucial at High Temperatures?
PTFE Filtration Sewing Threads are almost always used in situations where aggressive chemicals or gases at very high temperatures of 200°C - 260°C act on the filter media and their seams. In this temperature range, high-quality GORE RASTEX Fibers Sewing Threads made from expanded PTFE are superior to other PTFE products on the market, in some cases considerably so, with their long-lasting, high endurance strength. This is vitally important to the lifetime of the filter, significantly reducing the number of changeover cycles and achieving superior reliability throughout the entire usage period.
Why Are the Shrink Characteristics of PTFE Filtration Sewing Threads So Important at High Temperatures?
In practice PTFE Filtration Sewing Threads are exposed to temperatures of 230°C - 260°C. This heat results in “hot air shrinkage” of the threads and therefore the filter seams. In GORE RASTEX Fibers Sewing Threads made from expanded PTFE, the shrinkage is significantly less than 3%, making it a very high-quality product compared with other products on the market. High shrinkage inevitably results in shortened, non-dimensionally stable seams that may impair the function and performance of the filter.
Product Range
ORIGINAL GORE® RASTEX® SEWING THREAD
| PART NUMBER | DENIER/DTEX | NOMINAL BREAK STRENGTH LBS/CN | YIELD per KG Meters | Color |
|---|---|---|---|---|
S012T1 | 1200/1333 | 12/5338 | 7500 | Natural White |
S024T4 | 2400/2666 | 24/10676 | 3750 | Natural White |
MHT GORE® RASTEX® SEWING THREAD
| PART NUMBER | DENIER/DTEX | NOMINAL BREAK STRENGTH LBS/CN | YIELD per KG Meters | Color |
|---|---|---|---|---|
S010T1 | 1000/1111 | 12/5338 | 9000 | Natural White |
S020T4 | 2000/2222 | 24/10676 | 4500 | Natural White |
Explore More
FOR INDUSTRIAL USE ONLY
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.
Prefer to Call?
Have questions or unique requirements?
Our experts are here to guide you.