Flexible Vinyl Tubing

PVC tubing exhibits excellent elongation and drape. It is typically used for lower pressure applications and for OEM designs with complex tubing pathways. Several grades of flexible PVC tubing, include:

Standard: optically clear, odorless, tasteless and nontoxic; FDA compliant.

Chemical & Petrochemical Transfer: Formulated for use in the transfer of chemicals and petrochemicals including gasoline, kerosene, oils, and cutting compounds.

Nylon-Reinforced: Inner braid of nylon provides four times the working pressure of standard PVC tubing; FDA compliant.

Steel Wire-Reinforced: Kink-free, crush resistant; FDA compliant.

Bev-A-Line: High purity process tubing is lightweight, optically clear and transparent, meets standards for food, beverage, pharmaceutical, laboratory and medical device use.

Micro-Line: Mini-bore, is nontoxic, non-contaminating, and biogically stable; well suited for medical and laboratory use.

APPLICATIONS:Medical, laboratory;Food and beverage;Drainage lines;Chemical rocessing;Semiconductor processing;Environmental;Industrial.

PTFE + MICA MINERAL FILLED

PTFE (PolyTetraFluoroEthylene) is a fluorocarbon-based polymer also known throughout the industry as Dupont’s brand name Teflon®. Several other manufacturers make their own brands of PTFE which can often be used as substitute material. This fluoroplastic family offers plastics with high chemical resistance, low and high temperature capability, resistance to weathering, low friction, electrical and thermal insulation, and “slipperiness.”

PTFE filled with 5% to 10% mica provides a unique blend of strength and dimensional stability along with an excellent wear enhancing additive technology. This product provides excellent wear and stability in addition to FDA compliance.

Fluorosint® is a proprietary mixture in which synthetically manufactured mica is chemically linked to PTFE. This bonding results in properties not normally attainable in reinforced PTFE. Fluorosint® grades offer an excellent combination of low frictional properties, dimensional stability, excellent chemical resistance, and continuous use temperature of 500°F (260°C). Compared with PTFE, it has higher load carrying capability, 1/9 of the deformation under load, and a lower coefficient of thermal expansion.

FLUOROSINT GRADES
Fluorosint® 500 has nine times greater resistance to deformation under load than unfilled PTFE. Its coefficient of linear thermal expansion (CLTE) approaches the expansion rate of aluminum and is 1/5 that of PTFE — often eliminating fit and clearance problems. It is 1/3 harder than PTFE, has better wear characteristics, and maintains low frictional properties. Fluorosint ® 500 is also non-abrasive to most mating materials.

Fluorosint® 207’s unmatched dimensional stability, excellent creep resistance and white color uniquely position this material to serve FDA regulated applications. It is non-permeable in steam and complies with FDA regulation 21 CFR 175.300. It’s relative wear rate is 1/20 the rate of PTFE below 300°F (150°C). The combination of good mechanical performance and its inherent outstanding chemical and hydrolysis resistance, Fluorosint® 207 opens numerous application possibilities in food, pharmaceutical, and medical industries.

APPLICATIONS

• Electrical and thermal insulation pads under compressive loads
• Bearings, bushings

ADVANTAGES

• Good wear resistance
• Excellent chemical and hydrolysis resistance
• Good chemical properties
• Low coefficient of friction
• Very good dimensional stability
• Good electrical insulating properties
• Outstanding UV and weather resistance
• Inherent low flammability

Source:https://www.sukoptfe.com/ptfe-mica-mineral-filled

PTFE Filled Properties

PTFE (PolyTetraFluoroEthylene), a fluorocarbon-based polymer, is also known by Dupont’s brand name Teflon® and also as Furon’s brand name Rulon®. It is commonly used in its virgin (unfilled) state.

Virgin PTFE is capable in its own right, but when fillers are added, it enhances the material wear and deformation characteristics to more fully exploit their unique combination of chemical, physical and electrical properties.

The most common filled grades and its resulting enhanced mechanical properties are:

Glass Fiber (PTFE-GF): Added in various amounts (5% to 40%), increases compressive strength, rigidity and wear; reduces creep and cold flow; minimal effect on chemical and electrical properties.

Carbon (PTFE-CF): Added in various amounts (10% to 35%), increases compressive strength, hardness, wear, and load properties; good chemical resistance; various types and amounts of carbon can be added to alter conductivity.

Graphite (PTFE-CGF): Added in various amounts (5% to 15%), reduces coefficient of friction; reduces initial wear; increases strength.

Molybdenum Disulfide (PTFE-MoS2): Added in various amounts (5% to 15%), increases hardness, stiffness, and wear; minimal effect on chemical and electrical properties.

Metal (PTFE-BR, PTFE-SSF): Best wear properties, remarkable deformation strengths and good thermal conductivity.

Mineral: Mica added in various amounts (5% to 10%), provides excellent wear and stability in addition to FDA compliance.

Applications

• * Excellent chemical and hydrolysis reistance)
• * Excellent electrical insulating properties)
• * Low coefficient of friction)
• * Good dimensional stability)
• * High dielectric properties)
• * Good wear resistance)
• * Good UV and weather resistance)
• * High maximum allowable service temperature in air (continuously 260° C)

Advantages

• * Unfilled – Virgin
• * Unfilled – Mechanical
• * Glass Filled
• * Metal Filled
• * Carbon Filled
• * Mineral Filled
• * Blend
• * Static Control – Dssipative

Source:https://www.sukoptfe.com/ptfe-filled-properties

PTFE, METAL FILLED

Virgin PTFE is capable in its own right, but when fillers, such as metal, are added, it enhances the material wear and deformation characteristics to more fully exploit their unique combination of chemical, physical and electrical properties.

Metal-filled PTFEs has the best wear properties, remarkable deformation strengths and good thermal conductivity, but poor electrical characteristics and chemical resistance.

PTFE-BR: Bronze is the most common metal filler, added in percentages of weight between 40 and 60%. Bronze-filled PTFE is used in bearings at high speeds (particularly where unhardened shafts used), Wear pads, piston rings.

PTFE-SSF: The other choice is stainless steel, added in percentages of weight between 5 and 10%. Stainless steel filled PTFE compounds are used for seats and seals requiring high heat and steam applications. This compound is also used in many applications involving food processing.

APPLICATIONS

• Machine tool slide ways
• Bearings
• Rod and piston seals
• Guide, extrusion rings
• Wear pads
• Liners
• Bushings

ADVANTAGES

• High wear resistance
• Low friction
• Good chemical properties
• Low moisture absorption
• High Tensile strength
• Good abrasion resistance
• Low coefficient of friction

PTFE, PPS FILLED

PTFE (polytetrafluoroethylene) is a known solid lubricant and when used as a filler improves the tribology properties (wear and friction resistance) of a broad range of base polymers.

Polyphenylene sulfide (PPS) offers the best chemical resistance with no known solvents below 392°F (200°C). Low moisture absorption, good mechanical and excellent thermal resistance properties make PPS ideally suited for precise tolerance machined components.

The combination of PTFE fibers uniformly dispersed in PPS produces a material close the gap both in performance and price between the standard thermoplastic materials (e.g. PA, POM, PET) and the high-end advanced engineering plastics (e.g. PBI, PI, PAI, PEEK). Containing uniformly dispersed solid lubricant, Ertalyte® TX provides a lower wear rate and coefficient of friction than unmodified polyesters and even internally lubricated materials like Delrin® AF blend.

APPLICATIONS:Slide covers:Bearings, rollers, gears:Bushings:Machined parts;Wear pads:Pump, valve, compressor components:High temperature insulators.

ADVANTAGES:Ideal for machined parts where low friction and long life is important;Low moisture absorption;Excellent wear properties in both wet and dry environments;Easy to machine;Excellent dimensional stability;Excellent chemical resistance;Enhanced wear and friction properties over standard acetals.