News

.bst-c8-article { font-family: inherit; font-size: 16px; line-height: 1.75; overflow-wrap: break-word; } .bst-c8-article h2 { font-size: 24px; line-height: 1.35; margin: 28px 0 12px; } .bst-c8-article h3 { font-size: 19px; line-height: 1.4; margin: 20px 0 8px; } .bst-c8-article p { margin: 0 0 16px; } .bst-c8-article a { text-decoration: underline; } .bst-c8-article table { width: 100%; border-collapse: collapse; table-layout: fixed; margin: 16px 0 20px; } .bst-c8-article th, .bst-c8-article td { border: 1px solid #d8d8d8; padding: 12px; text-align: left; vertical-align: top; } .bst-c8-article thead th { background: #f5f5f5; } .bst-c8-article .calculation { border-left: 3px solid #666; padding: 12px 16px; margin: 18px 0; background: #f7f7f7; } .bst-c8-article .calculation p:last-child { margin-bottom: 0; } @media (max-width: 600px) { .bst-c8-article { font-size: 15px; } .bst-c8-article h2 { font-size: 21px; } .bst-c8-article th, .bst-c8-article td { padding: 8px; } } Woven fiberglass insulation tape is a thermal textile used for wrapping industrial pipework and local equipment details. Selecting it for a pipe installation means matching the construction, service conditions, width, overlap and fixing method. A description such as “50 mm heat-resistant tape” leaves too much of the installation undefined. This guide explains how to turn that description into a workable specification for industrial purchasing and maintenance. For the textile construction and available roll dimensions, see the BSTFLEX woven fiberglass insulation tape product page. Start with the job the tape must do Decide whether the project calls for local insulation on a hot pipe, protection of a component exposed to an external heat source, or a wrapping layer within a larger insulation assembly. These are different design tasks, even when the material looks similar. Where heat-loss control or a maximum outer surface temperature is specified, evaluate the complete insulation system. The pipe temperature, diameter, insulation thickness, surroundings and outer covering all matter. A tape's service-temperature limit does not tell you how cool the finished surface will be. Also identify exactly what is being purchased. This article concerns woven, texturized fiberglass tape. Do not substitute an open-mesh reinforcement strip or a different lagging fabric solely because its description also contains the words “glass tape.” Match width and thickness to the installation Measure the outside diameter where the tape will sit. If it is being applied over an existing insulation layer, use that layer's outside diameter rather than the nominal pipe size. Record nearby brackets, bends and access restrictions before selecting the roll width. Installation detail What to check before selecting the tape Straight, accessible pipe Compare practical tape widths and the overlap required. A wider strip can reduce the number of turns, provided it lies evenly. Tight bends or short transitions Trial-fit a n...

A replacement gasket can match the original outside dimensions and still change the way an industrial oven door closes. The difference may be inside the bulb rather than in the visible fiberglass cover. A fiberglass tadpole gasket combines a fiberglass textile cover with a compressible sealing bulb and a flat mounting tail. However, the bulb does not necessarily contain fiberglass. It may use a fiberglass core, a stainless steel core or a hollow stainless steel construction, each offering a different starting point for compression and mechanical support. For equipment manufacturers and maintenance teams, the practical question is not simply which gasket resists heat. It is which construction can maintain the required contact around the opening without overloading the door, damaging the cover or losing its useful compression range. This guide compares three fiberglass-covered constructions within the BSTFLEX tadpole gasket and tadpole seal range and explains how to specify them for industrial service. Three Core Types Beneath the Same Fiberglass Cover The cover identifies the exposed textile. The core specification describes what supports the bulb. Keeping these two details separate makes it easier to compare products and avoid ordering a seal based on appearance alone. Core Type Construction Selection Focus What to Confirm Fiberglass core Fiberglass material forms the internal bulb beneath the woven cover. Flexible compression without a metallic core. Core density, closing force and residual deformation after use. Stainless steel core A metallic internal structure supports the fiberglass-covered bulb. Internal reinforcement and application-specific compression behavior. Alloy, core geometry, wire construction and recovery under the intended load. Hollow stainless steel core An open-center metallic structure sits inside the fiberglass cover. Bulb deformation where available closing force and changing gaps are important. Usable compression travel, mesh construction and resistance to permanent collapse. These descriptions are selection starting points, not a universal ranking of softness or service life. Core density, wire diameter, mesh construction, bulb size and cover tension can change the behavior of the finished gasket. Fiberglass Core: A Non-Metallic Sealing Bulb A fiberglass core uses fiber material rather than metallic reinforcement to build the body of the bulb. Compression occurs through deformation and rearrangement of the internal textile structure. This construction is worth evaluating when a flexible, non-metallic core is preferred. Its firmness still depends on how the core is manufactured: two fiberglass cores with the same outside diameter need not require the same force to compress. The Fiberglass Cover Fiberglass Core Tadpole Gasket provides this cover-and-core combination. For a replacement project, specify the required compression response as well as the dimensions. Stainless Steel Core: Internal Metallic Support A stainless st...

What Is Silicone Coated Fiberglass Fabric and Where Is It Used? Silicone coated fiberglass fabric is a flexible industrial textile made by applying silicone rubber to woven fiberglass cloth. The fiberglass base provides strength, dimensional stability and high-temperature capability, while the silicone coating adds a durable surface with improved resistance to moisture, abrasion, weathering and repeated flexing. Because these two materials perform different functions, silicone fiberglass fabric is widely used where a plain fiberglass cloth would not provide enough surface durability or environmental protection. Common applications include removable insulation jackets, fabric expansion joints, welding curtains, valve and flange covers, flexible connectors and industrial equipment protection. For industrial and OEM specifications, see BSTFLEX Silicone Coated Fiberglass Fabric for High Temperature Insulation . What Is Silicone Coated Fiberglass Fabric? Silicone coated fiberglass fabric consists of two main components: a woven glass fiber substrate and a cured silicone rubber coating. The fiberglass cloth acts as the structural reinforcement. It provides tensile strength, dimensional stability and resistance to elevated temperatures. Silicone rubber is applied to one side or both sides of the fabric to modify the surface properties and improve performance in demanding industrial environments. The finished material may also be described as silicone coated fiberglass cloth, silicone fiberglass fabric, silicone fiberglass cloth, silicone rubber coated fiberglass fabric or silicone coated glass fabric. In most industrial purchasing applications, these terms refer to the same general family of coated technical textiles. How Is Silicone Coated Fiberglass Fabric Made? Production starts with a woven fiberglass base fabric selected according to the required thickness, weight, weave and mechanical properties. A formulated silicone rubber compound is then applied to the fiberglass substrate. Depending on the intended application, silicone may be applied to one side or both sides. The coated textile is subsequently cured so that the silicone forms a stable, flexible surface bonded to the fiberglass fabric. The amount of coating can be adjusted according to required weight, flexibility, surface finish and environmental resistance. This is why two silicone coated fiberglass fabrics with a similar thickness may have different coating weights and different finished performance. What Does the Fiberglass Base Provide? The fiberglass reinforcement is responsible for much of the material's structural and thermal performance. Typical benefits include: High dimensional stability Good tensile strength Resistance to elevated temperatures Low shrinkage under normal industrial operating conditions Good compatibility with cutting and sewing processes Non-combustible glass fiber construction For applications where a coating is not required, an untreated or specially treated fib...

Hydraulic hoses installed close to engines, exhaust components, furnaces, casting equipment or other hot machinery face a different type of risk from hoses exposed only to mechanical abrasion. High radiant heat can accelerate rubber aging, direct flame can damage the hose cover, and molten metal splash can create sudden localized thermal damage. For these environments, a fire sleeve for hydraulic hose provides an additional thermal barrier around the hose. The most common construction combines a fiberglass insulation sleeve with a silicone rubber outer coating, creating a flexible protective layer for demanding hydraulic systems. This guide explains how to select the correct hydraulic hose fire sleeve, how to determine the appropriate sleeve size, and which operating conditions should be considered before specifying a fire-resistant sleeve. For product specifications, testing information and OEM options, see the BSTFLEX Hydraulic Hose Protection Fire Sleeve. For other constructions and fire protection sleeve options, visit the BSTFLEX Fire Sleeves range. Why Hydraulic Hoses Need Thermal Protection A hydraulic hose may be designed for a demanding pressure and fluid environment while still being vulnerable to external heat. The actual service condition depends heavily on hose routing. A line positioned away from a heat source may operate normally for years. The same hose routed close to an exhaust manifold, furnace wall, hot process line or molten-metal area can experience continuous radiant heating that raises the temperature of the hose cover and reinforcement system. Common external hazards include: radiant heat from exhaust systems and hot machinery; temporary flame exposure; molten metal splash in foundries and steel-processing environments; hot surfaces close to the hose routing; oil, fuel and hydraulic-fluid contamination; abrasion caused by vibration and equipment movement; combined thermal and mechanical exposure. A hydraulic hose fire sleeve is therefore used as an external protection layer. It does not replace correct hose selection, routing or system design. Instead, it adds thermal and mechanical protection where environmental exposure cannot be eliminated completely. What Is a Fire Sleeve for Hydraulic Hose? A typical fire sleeve consists of a high-temperature fiberglass textile substrate covered with silicone rubber. Each layer performs a different function. Fiberglass Inner Layer The fiberglass structure creates the primary insulating body of the sleeve. Its thickness and textile construction help reduce heat transfer between the external environment and the hydraulic hose underneath. Silicone Rubber Outer Surface The silicone coating provides a flexible exterior that helps the sleeve withstand harsh industrial conditions. Depending on the specific fire sleeve construction and qualification, it can contribute resistance to flame exposure, oil contamination, abrasion and molten splash. This combination explains why silicone-coated fi...

Braided Biaxial Aramid Sleeve for Composite Reinforcement Composite manufacturers often need reinforcement materials that can conform around tubes, curved profiles, lightweight structures and irregular shapes. Flat fabrics are useful for panels, but they are not always efficient for round or complex parts. A Braided Biaxial Aramid Sleeve provides a practical solution for composite reinforcement where continuous fiber coverage, impact resistance and lightweight strength are required. Made from para aramid fiber, this type of sleeve is used as a reinforcement layer in composite tubes, rods, frames, protective structures and custom molded parts. The braided sleeve can expand, contract and fit over different shapes before resin impregnation, helping manufacturers build stronger and more durable composite components. Unlike protective sleeves used only for hose or cable covering, an aramid composite sleeve is selected as a structural reinforcement material. Its purpose is to become part of the finished composite after resin application and curing. What Is a Braided Biaxial Aramid Sleeve? A braided biaxial aramid sleeve is a tubular reinforcement sleeve produced from aramid yarns arranged in a braided angle. The biaxial structure means the fibers run in two opposing directions around the sleeve, creating balanced reinforcement around the surface of the part. This structure allows the sleeve to conform around round, tapered or shaped components more easily than many flat reinforcement fabrics. It is especially suitable for composite applications where the part needs continuous coverage without seams or excessive fabric cutting. In practical use, the sleeve is placed over a mandrel, tube, core or shaped part. Resin is then applied through wet lay-up, infusion or other composite processing methods. After curing, the aramid sleeve becomes part of the reinforced composite structure. Why Use Aramid Fiber for Composite Reinforcement? Para aramid fiber is widely used in demanding composite applications because it offers a strong combination of toughness, lightweight performance and impact resistance. Compared with many general textile fibers, aramid provides higher mechanical strength and better damage tolerance. An aramid sleeve for composite reinforcement is commonly selected when the finished part must resist impact, vibration, cracking or mechanical abuse while keeping weight low. Main advantages include: High strength-to-weight ratio for lightweight composite structures Excellent impact resistance and toughness Good abrasion and wear resistance on reinforced surfaces Flexible tubular structure for easy fitting over complex shapes Continuous fiber coverage around round or irregular parts Suitable for resin impregnation and custom composite fabrication How Braided Aramid Sleeve Works in Composite Parts A braided aramid sleeve works differently from a flat woven fabric. Instead of being cut and wrapped manually around a component, the sleeve can be expanded ...