Performance Options

Thermal Line Windows Manufactures Compozit™ ABS/ASA "Super Windows"

Thermal Line Windows of Mandan, North Dakota started manufacturing vinyl windows in 1984. The company is now manufacturing windows from Compozit™C/G, a co-extruded high-impact resistant thermoplastic. The ABS or CYCOLAC® substrate is known for its combination of heat resistance, dimensional stability, and impact strength. CYCOLAC®resin is used in applications from truck bumpers to computer housings and bathtubs. The ASA or GELOY® exterior is a highly weatherable, high impact material and is used in applications like exterior building products, outdoor furniture, and recreational vehicles. Compozit™C/G will resist fading and warping and won't rot, corrode, rust, blister or chalk like other window materials can.

These resins have been used in various manufacturing applications since the early 1930's, and were introduced to the window industry over ten years ago. Thermal Line Windows started using Compozit™ C/G in some styles of windows in 1990, and now offer a complete product line in most architectural styles and shapes with various glass options including Heat Mirror™. The windows are available in white, beige, and brown with light or dark woodgrain interior on the white, beige exterior. This product has been used extensively in residential new construction, replacement, and many commercial window applications.

All Thermal Line Windows are independently tested as well as NFRC and Energy Star® certified and labeled The American Architectural Manufactures Association [AAMA] has published a new standard for certifying window lineals. This standard, AAMA 304, is for lineals using ABS capped with ASA or ASA/PVC blends. This is the first alternative plastic standard to be approved by AAMA. Thermal Line Windows is proud to be offering windows that have the obvious advantages provided by engineered thermoplastics.