HALAR Coating, PVDF, ETFE, FEP, and PFA Coating service provider in India

"First Company to Introduce Rotolining Technology in India"

"Pioneer in Fluoropolymer Coating Since 1988"

Coating of PVDF / HALAR / ETFE / FEP / PFA / HDPE / PP

Coating of PVDF / HALAR / ETFE / FEP / PFA

We are India's leading Coating service providing company, we provide coating of PVDF, HALAR (ECTFE), ETFE, FEP, PFA, HDPE, and PP for the Equipments and Parts used in API, BULK Drug, Pesticide, Fluorine & Bromine Handling, Cryogenics Corression, Pharmaceutical, Fine Chemical, Inorganic Chemical, Petrochemical, Surface treatments, Paper Industry, Powder Industry, Steel Industry, Bio Diesel Industry, Etc.

OUR SPECIALITY: ExAntistatic conductive coating of PVDF / HALAR / ETFE / FEP / PFA / HDPE / PP with resistance of 10e4 To 10e8 ohms

We provide PVDF Coating, HALAR Coating(ECTFE), ETFE Coating, FEP Coating, PFA Coating, HDPE Coating, and PP Coating for the Equipment like Centrifuges, Storage Tanks, Filters, Dryers, Reactors, Mixers, Columns, GLR Spares, Silicon Carbide Shell & Tube Heat Exchanger Etc.

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PVDF Coating

PVDF, Polyvinyledene Fluoride is a highly non reactive and pure thermoplastic fluoropolymer. It is also called as HYLAR.
PVDF is a special plastic material from the fluoropolymer family. PVDF coating is a special purpose coating that can be used in various applications that require highest purity, strength, resistance to solvents, acids, bases and for low smoke generation during a fire event.
PVDF coatings are easy to melt when compared with other fluoropolymers because of its low melting point of around 177˚C. Also it has a relatively low density and involves low cost when compared with other fluoropolymers.
PVDF can be injected, molded or welded and most commonly used in chemical, semi conductor, medical and defense industries as well as in lithium ion batteries.
PVDF, Polyvinyledene Fluoride is a highly non reactive and pure thermoplastic fluoropolymer. It is also called as HYLAR.

HALAR Coating

Halar is nothing but a brand name for ECTFE (Ethylene Chlorotrifluoroethylene). It is a fluorocarbon based fluoropolymer, a kind of plastic. It provides high impact strength, chemical and corrosion resistance over a wide temperature range of -76˚C to 150˚C.
Coatings made from HALAR provide excellent chemical resistance and electrical properties to equipments that are operating at the temperatures up to 300℉. These are best suited for full vacuum applications.

Applications of HALAR Coatings

  • HALAR coatings are used to minimize wear in high frictional applications, where dimensional stability is a requirement.
  • Typical applications include bearings, cams, valve seals, semi conductor tooling and cables.
  • This coating can be used as bearing surface for machine tools.
  • Can be used in electrical insulators due to high resistivity and low dielectric constant.
  • Can be bonded by using the same type of epoxy resin or Ultra Sonics as other fluoropolymers.
  • Chemical properties of HALAR coating resembles ETFE but with lower melting points.

HALAR Coatings are ideal for Chemical applications

HALAR is one of the most chemical resistant polymers that are available today. Some luminous characteristics of HALAR which meets the industrial demanding applications:

  • Excellent release properties
  • Extremely smooth surface
  • Dimensionally stable
  • Low cold flow
  • Ideal to operate at the temperatures (up to 300℉)
  • Mechanically tough with excellent abrasion and impact resistance

ETFE Coating

Ethylene Tetrafluoroethylene (ETFE) is also a fluorocarbon based polymer, a kind of plastic. ETFE is a thermoplastic copolymer that is derived from the polymerization of Ethylene and Tetrafluoroethylene monomers. This resin is extremely tough and abrasion resistance. It was designed to have high corrosion resistance, low coefficient of friction and strength over a wide temperature range. In addition to this it has a high melting temperature and does not emit toxic fumes when ignited.
ETFE coating is a proven fluoropolymer in the chemical and petrochemical industries. ETFE is renowned for its unique properties and design versatility. It has the ability to solve the toughest material problems of industrial equipments and components.
ETFE coatings provide excellent resistance to attacks by chemicals and solvents that can cause rapid deterioration of other plastics. ETFE is inert to strong mineral acids, inorganic bases, halogens and metal salt solutions.
In addition to this ETFE coatings will have excellent mechanical strength, stiffness and abrasion resistance. It will be an ideal in such applications where abrasive slurries accelerate wear and degradation of alternative materials.

FEP Coating

Fluorinated Ethylene Propylene (FEP) is a copolymer of hexafluoropropylene and tetrafluoroethylene. It is relatively a soft thermoplastic with lower tensile strength, wear resistance and creep resistance than any other engineering plastics. However, FEP coatings are chemically inert and have a low dielectric constant.

Properties of FEP Coatings

  • High degree of stress crack resistance
  • Low coefficient of friction
  • Exceptional dielectric properties
  • Heat resistance
  • Retention properties
  • High transparency rate with good transmittance of ultra violets and visible wavelengths
  • Long term weather resistant
  • Excellent resistance to ozone, sunlight and weather
  • Lowest refractive index of all thermoplastics with low light reflection

Important applications of FEP coatings are linings for pipes, linings for chemical equipment including roll covers, cable applications, aircraft wire, plenum cable, fire alarm cable and well logging cable. FEP film is also used as glazing in solar energy collectors.

PFA Coating

PFA is abbreviated as Perfluoroalkoxy Polymer Resin is a type of fluoropolymer with the properties almost similar to that of Polytetrafluoroethylene (PTFE). But it is melted using conventional injection molding and screw extrusion techniques. PFA coatings share the useful properties of PTFE as coefficient of friction and non reactivity but are easily formable.

PFA offer similar properties to that of FEP but is considered more of a premium resin. PFA coating is ideal when extended services are required in hostile environments involving chemical, thermal and mechanical stress.

Properties of PFA :

  • High melting strength
  • Stability at high processing temperatures
  • Excellent crack resistance
  • Excellent stress resistance
  • Low coefficient of friction
  • More than 10 times flex life of FEP

PFA coating is not degraded by systems that are commonly encountered in chemical processes. It is inert to strong mineral acids, inorganic bases, inorganic oxidizing agents, salty solutions including some organic compounds as organic acids, anhydrides, aromatics, aliphatic hydrocarbons, alcohols, aldehydes, esters, ethers, chloro carbons, fluorocarbons and some combinations of the above.

PFA coatings that are applied on carbon steel or stainless steel have a continuous service temperature ranging between -60℉ to 400℉. A primer is compulsory before applying the PFA coating. There is a little bit of draw back for PFA coatings, if ones damaged, they cannot be repaired. Heat is required to cure the coating.

HDPE Coating

HDPE Coating: application for storing organic & inorganic acids, water treatment, plating & brine.

PP Coating

PP Coating: application for storing corrosives, including sulfuric, hydrochloric, hydrofluoric acids, caustics, sodium hypochlorite, etc

Applications of Coating

1. Coating of Centrifuges Top discharge / Lifting Bag / Bottom Discharge / Peeler
2.Coating of Tanks Vertical / Horizontal / ML Tank / Dosing Tank / Jacketed Receiver
3.Coating of Filters ANFD / Nutsche Filter / Basket Filter / Cartridge Filter / Bag Filter
4.Coating of Dryers VTD / FD / RCVD / ATFD
5.Coating of Reactors For HF / High Alkaline / Abrasive application
6.Coating of Mixers Nauta / Ribbon Blender / Polygonal Blender / Agitator / Static Mixer
7.Coating of Columns Distillation / Mist Elliminator / Scrubber / Absorber
8.Coating of GLR Spares Agitator / Top Dish / Bottom Shell / Manhole Cover / Protection Ring / Flush bottom Valve / Thermowell / NRV
9.Coating of Heat Exchangers Shell & Tube / U Tube / Double Jacketed / Coil / Plate Type
10.Coating of Valves Diaphragm / Ball / Butter Fly
11.Coating of Pipes & Fittings Standard / Jacketed Pipe
12.Coating of Pumps Centrifugal / Diaphragm / Metering / Magnetic
13.Coating of Blowers Impeller / Casing

POLYMER COATING SELECTION GUIDE

Polymer Compatibility & Application Non - Compatibility
     
HDPE Storage of Caustics, Metal Finishing Chemicals, Organic &In Organic Acids, Water Treatment Chemicals, Plating Chemicals & Brine   FDA 21 CFR 177. 1520 Strong Oxidizing Agents, Aromatic Hydro Carbons & Halogenated Aliphatic Hydro Carbons
PP Suitable for many corrosive chemicals which are not suitable for FRP Storage of Sulfuric Acid, Hydrochloric Acid, Hydrofluoric Acid, Organic & In Organic Chemicals Strong Oxidizing Agents & Halogenated Aliphatic Hydro Carbons
PVDF Superior Resistance to Inorganic Acids, Strong Oxidizing Agents & Halogenated Chemicals   FDA 21 CFR 177. 2510 Ketones, Esters, Amines & Hot Concentrated Caustics
HALAR Similar to PVDF but having better resistance to Ketones   FDA 21 CFR 177. 2510 Amines & Halogenated Hydro Carbons like MDC, EDC, Bromo Benzene
Polymer Chemical Resistance Stress Crack Resistance Maximum Operating Temperature Brittleness Temperature Impact Resistance FDA Applicability Color
HDPE Very Good Good Deg C -70 Deg C Good Yes Black
PP Very Good Excellent 65 Deg C -118 Deg C Excellent No Offwhite
PVDF Excellent Good 80 Deg C -40 Deg C Good Yes Brown
HALAR Excellent Good 95 Deg C -80 Deg C Good Yes Green

COMPARISON OF PROPERTIES OF POLYMERS COATINGS

The important properties to be considered of coating are as follow

MaterialSpecificGravityMeltingPointCMax working
temprature
C
HardnessShoreChemicalResistanceAbrasionResistanceRawMaterialCost
PFA2.15305200D-64ExcellentpoorExpensive
FEP2.15265180D-55ExcellentpoorExpensive
ETFE1.74245120D-63-72Excellent-1ExcellentModerate
ECTFE(Halar)1.68221100D-75Excellent-1ExcellentModerate
PVDF1.7716580D-75-80Excellent-2ExcellentModerate
PP0.94215580D-58Good 3SupremeLow Cost
HDPE0.9610560D-44Good 4GoodLowest Cost
  1. Attacked by strong oxidizing agents and hot amines (For ETFE & HALAR)
  2. Resistant to acids and bases ; dissolved by polar organics (For PVDF)
  3. Resistant to acids and bases ; attacked by strong oxidizing agents (For PP)
  4. Resistant to dilute acids and bases; attacked by strong oxidizing agents (For HDPE)
  • PFA - Per Fluoro Alkoxy
  • PVDF - Poly Vinylidene Fluoride
  • FEP - Fluorinated Ethylene Propylene
  • PP - Polypropylene
  • ETFE - Ethylene Tetra Fluoro Ethylene
  • HDPE - High Density Polythylene
  • ECTFE - Ethylene Chloro Trifluoro Ethylene

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