PTFE coated fiberglass sewing threads glass fiber Different types heat resistance

High silica fiberglass sewing thread is a specialized type of thread used in high-temperature and fire-resistant applications. It is made from continuous filament yarns of high-purity silica glass, which gives it excellent resistance to heat and flame. Silica glass is known for its ability to withstand extremely high temperatures, making it suitable for applications where conventional threads would melt or burn.

PTFE (Polytetrafluoroethylene) coated fiberglass sewing thread is a specialized type of sewing thread made from fiberglass fibers that are coated with a layer of PTFE. PTFE is a synthetic fluoropolymer known for its non-stick properties, high temperature resistance, and chemical inertness.Here are some key characteristics and applications of PTFE coated fiberglass sewing thread:
High Temperature Resistance: PTFE-coated fiberglass sewing thread can withstand extremely high temperatures without melting or degrading. This makes it suitable for sewing applications in industries where heat resistance is crucial, such as aerospace, automotive, and industrial manufacturing.
Chemical Resistance: PTFE coating provides excellent resistance to chemicals and solvents, making the thread suitable for use in harsh chemical environments.
Non-stick Properties: The non-stick properties of PTFE coating prevent the sewing thread from adhering to surfaces, ensuring smooth stitching and preventing thread breakage or damage during sewing processes.
Low Friction: PTFE coating reduces friction between the sewing thread and sewing machine parts, resulting in smoother sewing operations and reduced wear on equipment.
Weather Resistance: PTFE-coated fiberglass sewing thread is resistant to weathering, UV radiation, and moisture, making it suitable for outdoor applications such as awnings, outdoor furniture, and marine products.
Electrical Insulation: The non-conductive nature of PTFE-coated fiberglass thread makes it suitable for electrical insulation applications where high temperatures and chemical resistance are required.
Food Industry: PTFE-coated fiberglass sewing thread is also used in the food industry for applications such as sealing and stitching food-grade packaging materials, as it is non-toxic and resistant to food oils and grease.

Performance Index of High Silica Fibre Thread
Type	Linear Density(tex)	Diameter(mm)	Average Tensile Strength(N)	Degree of Twist(T/m)	Content of SiO₂(%)	Combustibie Content	High Temperature line Shrinkage	Apprearance
BCT9-280	280±25	0.25	≥88.3	280±15%	≥96	≤6	≤3	Uniform
BCT9-340	340±27	0.5	≥50	180±15%	≥96	≤7	≤4
BCT9-475	475±38	0.6	≥70	180±15%	≥96	≤7	≤4
BCT9-570	570±46	0.8	≥80	180±15%	≥96	≤7	≤4
BCT9-630	630±50	0.85	≥90	180±15%	≥96	≤7	≤4
BCT9-760	760±8%	1	≥110	180±15%	≥96	≤7	≤4
BCT9-1600	1600±6%	1.7	≥230	120±15%	≥96	≤7	≤4
BCT9-1200	1200±8%	1.5	≥190	120±15%	≥96	≤7	≤4
B:high silica fibre C:continuous glassfibre T:finish