PTFE Adhesive High-Temp Tape

PTFE high-temperature adhesive tape is produced by using base cloth weaved from imported glass fiber that is coated with polytetrafluoroethylene and processed with a special process. It is a new high performance and multipurpose composite material. Due to its excellent performance, it is extensively applied in the fields including paper making,foods, environment protection, printing and dyeing, garment, chemical engineering, glass, medicines, electronics, insulation, grinding wheel slicing and machinery.

1. With good wear resistance, penetration resistance, breakage resistance, it is easy to use and has long service life.
2. Applied in between -70°C and 260°C, it features weathering resistance and aging resistance. The actual application proves that when it is placed at 250°C for continuous200 days, both of its strength and weight will not be reduced; when it is placed at 350°C for 120 hours, its weight reduces by only about 0.6%; the original flexibility is well maintained at -180°C.
3.Non-adhesion: Smooth surface, not adhesive to any substance. Oil stain, smudge or other deposits adhered to its surface can be easily cleaned; almost all deposits such as paste, resin or coating can be easily removed.
4. Chemical corrosion resistance, resistance to strong acid, strong base and various organic solvents.
5. Chemical resistance and non-toxicity. Resistant to almost all chemical reagents.
6. High insulation (low dielectric constant: 2.6, tangent below 0.0025),ultraviolet-proof, anti-static.
7. Fire-proofing.

Main Applications

A. Coating of various high-temperature rollers, heating sheet and demoulding workpiece.
B. Sealing of foods, chemicals and plastic bags.
C. Pad pasting for sliding chute, hopper and aviation molds, also suitable forrollers of sizing machine and thermoplastic demoulding. It can be repeatedlyused and is easily replaceable.
D. Suitable for surface treatment requiring anti-sticking, anti-corrosion and high-temperatureresistant surface.
E. Applied in the fields such as packaging, thermoplastic, compound and sealing,electronics.

Industry:
1, LCD, FPC / PCB and other optoelectronics industry
2, food, pharmaceutical packaging industry
3, plastic heat sealing machine, high-speed sealing machine
4, hot melt machine
5, motors, high and low voltage electrical products, wire and cable insulation, battery manufacturing
6, sewing machine car, shovel Paper Machine
7, rubber-coated plastic rollers
8, other required high temperature, wear, corrosion resistance, anti-sticking place

Source:https://www.sukoptfe.com/ptfe-adhesive-high-temp-tape

PTFE Properties & PTFE Product Processing

PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m3. It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (−268.15 °C; −450.67 °F), and good flexibility at temperatures above 194 K (−79 °C; −110 °F). PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons. The only chemicals known to affect these carbon-fluorine bonds are highly reactive metals like the alkali metals, and at higher temperatures also such metals as aluminium and magnesium, and fluorinating agents such as xenon difluoride and cobalt(III) fluoride.

The coefficient of friction of plastics is usually measured against polished steel. PTFE's coefficient of friction is 0.05 to 0.10, which is the third-lowest of any known solid material. PTFE's resistance to van der Waals forces means that it is the only known surface to which a gecko cannot stick.In fact, PTFE can be used to prevent insects climbing up surfaces painted with the material. PTFE is so slippery that insects cannot get a grip and tend to fall off.

Because of its chemical inertness, PTFE cannot be cross-linked like an elastomer. Therefore, it has no "memory" and is subject to creep. Because of its superior chemical and thermal properties, PTFE is often used as a gasket material within industries that require resistance to aggressive chemicals such as pharmaceuticals or chemical processing. However, because of the propensity to creep, the long-term performance of such seals is worse than for elastomers which exhibit zero, or near-zero, levels of creep.

Processing PTFE can be difficult and expensive, because the high melting temperature, 327 °C (621 °F), is above the initial decomposition temperature, 200 °C (392 °F). Even when melted, PTFE does not flow, but instead behaves as a gel due to the absence of crystalline phase and high melt viscosity.

Some PTFE parts are made by cold-moulding, a form of compression molding. Here, fine powdered PTFE is forced into a mould under high pressure . After a settling period, lasting from minutes to days, the mould is heated at 360 to 380 degrees Celsius , allowing the fine particles to fuse into a single mass.

Source:https://www.sukoptfe.com/ptfe-properties-ptfe-product-processing

PTFE Lined Bushing

The metal shell of a PTFE-lined bushing is not ideal for applications where water or caustic chemicals are present. In these types of applications, PTFE-lined bushings can rust, corrode, contaminate sensitive areas, and ultimately fail. Since plastic bushings are made solely of high-performance polymers, they offer both corrosion- and chemical-resistance and operate unaffected in those types of environments.

Steel backed PTFE lined bushings is a low cost, general purpose bearing product that provides excellent wear characteristics at high loads, speeds over a wide temperature range.

Designed to be self-lubricating bushings they are rolled bushings composed of a steel backing, for structural strength, with bonded layers of sintered bronze and PTFE for a maintenance free bearing surface.

The thin wall bearing design, excellent performance features, and low cost make this product one of the most popular self lubricating bearings in the industrial global marketplace.

PTFE-lined bushings weigh more than plastic bushings. When using a heavier bushing, no matter what material it is comprised of, more energy is required for the bushing to operate. This can be troublesome, especially in automotive, aerospace, recreational vehicle, and bicycle applications.

In contrast, plastic bushings are lightweight, which helps decrease fuel consumption and carbon dioxide output. The reduced weight can also help reduce carbon dioxide output, lower masses and subsequently, lower energy consumption.

Source:https://www.sukoptfe.com/ptfe-lined-bushing

PTFE Convoluted Hose

Standard seamless PTFE braided hoses are extremely lightweight, flexible and kink resistant. Convoluted Fluoropolymer PTFE hoses are less susceptible to cracking from stress or flexing than metal hoses or other fluoropolymer hoses when used within designated operating parameters. 

Features

• Seamless
• Open-pitched
• Self draining
• Excellent chemical compatibility
• Easy Cleaning
• Non Adhesive

Natural (non-conductive) or black (conductivestatic dissipating)
Braiding - Stainless Steel or Polypropylene
Protective/Identifying Sleeving - Fire Sleeve,Heat Shrink and Hose Guards
Available as tube assembly without braid

Expanded PTFE Round Rope

PTFE is a very useful material because it has a unique combination of properties. PTFE is chemically inert, weatherable, excellent electrical insulation, high temperature resistance, a low coefficient of friction and non-adhesive properties.

Valve-spindle cord made of pure expanded PTFE, used as valve-spindle and flange seals in the chemical, pharmaceutical and food processing industries. Flanges are sealed quickly and securely by simple insertion of a ring of PTFE round cord (ends twisted). 

APPLICATION
 
Media：              Acids, alkalis, solvents, gases, etc.
Temperature：     -240 up to 260°C
Pressure：          100 bar
PH-Value：         0 - 14
Density：           Grade A/B: 0.70/0.80g/cm3      1.0~1.5 g/cm3 on request

Source:https://www.sukoptfe.com/expanded-ptfe-round-rope