Fire resisting glass

Frontages in sandwich made of PVC foam core and skins of fire-resistant glass fibre reinforced polyester. The panels are attached onto a steel framework. 

Container made of fire-resistant glass, such as a large Erlenmeycr flask, spatula, glass rod, gas burner watchglass crystallising dish, plant, safety glasses, protective gloves. 

High fire resistance glass does not bum or set fire. 

Low-expansion glass ceramics, however, show an excellent thermal shock resistance and a high thermal load capacity. For that reason they are used as table and oven ware, oven plates, or fire resistant glasses. With all these applications, low-expansion glass ceramics are exposed to relatively high temperatures. In most of these cases, compressive stresses due to thermal toughening would be reduced. 

Use substandard materials, e.g. non-fire resisting glass in fire resisting elements of construction. 

It should be noted that there are many different proprietary types of fire resisting glass available, many of them with similar sounding names. The main glass types are as follows ... 

Fire and Wind Hazards. Weather resistance of roof covetings is not necessarily correlated to fire and wiad resistance. Underwriters Laboratory and the Factory Mutual System test and rate fire and wiad hazard resistance, and some durabiUty tests. Organic felt or fiber glass mat base shingles are commonly manufactured to meet minimum UL requirements, which, ia addition to minimum mass, require wiad and fire resistance properties. 

Other Considerations Autoignition can occur if combustible fluids are absorbed by wicking-type insulations. Chloride stress corrosion of austenitic stainless steel can occur when chlorides are concentrated on metal surfaces at or above approximately 60°C (140°F). The chlorides can come from sources other than the insulation. Some calcium sihcates are formulated to exceed the requirements of the MIL-I-24244A specification. Fire resistance of insulations varies widely. Calcium sihcate, cellular glass, glass fiber, and mineral wool are fire-resistant but do not perform equally under actual fire conditions. A steel jacket provides protection, but aluminum does not. 

Fibrous materials with a high melting point are used to form fire resistant boards and blankets. The fibers are derived from glass minerals or ceramics. They may be woven into cloths and are used as blankets around the object to be protected. 

The largest commission finishers of fire-resistant textiles in the United stales tea 1995) are W extex and MF H Textiles. Inc. (Butler. Georgia). Specialized (lame-retardam applications to cotton-wrapped polyester. Kevlar, nylon, and glass core yams are beginning lo attract the interest of the industry for special-purpose fabrics. 

The low water absorptivity and good resistance to hydrostatic pressure make syntactic foams very useful for marine and submarine construction. Materials to be used for deep-sea application must have 1) low compressibilities at high hydrostatic pressure, 2) low thermal expansion coefficients, 3) low water absorption, and 4) good fire resistance. The fluids used for buoyancy in deep water submersibles include gasoline, ammonia, and silicone oil, while the solids include plastic, glass and aluminium foams, lithium, wood, and monolithic polyolefins. The liquids are dense but have low... 

---