Darco Southern in the Boiler Industry

Over 40 Years of Industry Service

The Boiler industry creates some of the most demanding sealing and thermal protection environments with the combination of moisture, pressure, and high operating temperatures. Ensuring worker life safety and equipment longevity are key priorities every day. Darco Southern continues to be an industry leader in providing thermal protection products and gasket solutions to the Boiler industry for more than 40 years from our Independence, VA and Spring City, PA manufacturing facilities.

Download our Boiler Industry Solutions Overview today!

  • Aftermarket Kits
  • Boiler and Steam Generation Seals & Gaskets
  • Hose and Cable Heat & Flame Protection
  • High-temperature Industrial Packing
  • Welding & Brazing Curtain/Shield
  • Insulation/Heat Containment
  • Worker Life Safety
  • Pipe Flange Seals

Darco Southern Products Are the Boiler Industry Standard

Darco Southern’s wide variety of high temperature material and coating options along with our manufacturing capabilities position us to offer thermal protection and gasket solutions for the simple to the most complex applications in the Boiler Industry.

Darco Southern Tetraglas-T® tacky cloth material is one of the most widely used gasket materials in the boiler industry. With the unique ability to seal against pressures up to 300psi and operating temperatures up to 500°F/260°C, Tetraglas-T tacky cloth offers the best of both worlds when it comes to gasket requirements in boilers. The versatility of our tacky cloth material allows us to produce tadpole gaskets, ring and full face gaskets, manhole and handhole gaskets, tapes, groove packing, as well as custom combinations to provide solutions for your boiler gasket applications.

Our Tetraglas® fiberglass, Tetraglas 3000® silica, ceramic, and basalt product groups are available in the form of woven cloth, needled blanket, tape, rope, and sleeving.  These materials provide our maximum constant operating temperatures and are the base materials for our standard and our custom made products including tadpole tapes, gaskets, hose and pipe insulation covers, protective shields and more.

Various temperature, abrasion resistance, and sealing enhancement coatings and additives offer additional performance capabilities to provide even more options for your specific application requirements. Some of these include vermiculite, PTFE, graphite, and reflective foils.

In addition to our high temperature gaskets made from our Tetraglas fiberglass, Tetraglas-T tacky cloth, Tetraglas 3000 silica, ceramic and basalt high temperature textiles, Darco Southern offers a line of compressed non-asbestos materials including PTFE, laminate graphite, spiral wound, metal, and various rubber.

Custom Solutions and Aftermarket Kits

In addition to our standard products, Darco Southern has in-house engineering and custom fabrication capabilities for providing solutions to the most demanding thermal challenges.  In collaboration with your team, we review your application, performance requirements and all product options to find the optimal solution.

We also offer aftermarket kits that are packaged, inventoried, and shipped based on your specifications.

Typical Materials

  • SILICONE (500°F/260°C)
  • TACKY CLOTH (500°F/260°C)
  • REFLECTIVE FOIL (500°F/260°C)
  • FIBERGLASS (1000°F/540°C)
  • BASALT (1382°F/750°C)
  • VERMICULITE (1500°F/815°C)
  • GRAPHITE (up to 1800°F/980°C) depending on environment
  • SILICA (1800°F/980°C)
  • CERAMIC (2300°F/1260°C)