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We are committed to providing high-quality products and overall value-added solutions to meet the diverse needs of our customers.
With our years of experience in the field of fluoropolymer materials and continuous innovation， our skilled and dedicated team provides customized solutions to meet the requirements of customers' complex challenge applications.
Founder& Chairman
David Zeng
Over the years， customers regard Hongda as an ideal supplier for selecting suitable materials and a long-term reliable strategic partner.
CONTENTS
1 About Hongda
2 Our Products
PTFE 09
PVDF 10
PCTFE 11
PFA 12
FEP 13
PEEK 14
UHMW-PE 15
Fluoropolymer Lining 16
Machined Plastic Parts 17
Sealing Solution 19
Spring Energized Seal 20
OtherProducts 21
About HONGDA
Founded in 1999， Hongda has grown to become one of the largest fluoropolymer manufacturers in China and global supplier of high performance plastics related products. We offer many selection of thermoplastics and customized solutions for industrial applications.
We supply high performance plastics in the form of semi-finished products such as sheets,rods, tubes and finished parts as per drawings.
Mainmaterials:PVDF,PFA,PCTFE,PTFE,FEP,ETFE，PEEK，UHMWPE,ABS, NYLON...
1999
Founded inyear
50,000m² Factory area
285+ No.of employees
80+
Patents
1500+ Customers served
40+ countries Products exported
Industry Served
Oil & Gas Chemical Processing Semi-conductor Photovoltaic Cryogenic Sealing Water Treatment Electronics Fluid Control System New Energy
>
Our History
2008
The first 1000x2000mm molded PVDF sheet in China produced at HONGDA
2016
Start production of RO membrane fittings for water treatment industry
2004
Acquisition of Zhuzhou Jinshan Plastic Co., Ltd (Main products:PCTFE, PVDF, PFA,FEP,ETFE)
D
1999
2005
Zhuzhou Hongda Polymer Materials Co.,Ltd was established
2013
Acquisition of Zhuzhou No.7 Plastic Factory which was founded in year1970 （Main products:PTFE)
QMSISO 9001:2008 Passed
New factory under construction(Factoryarea 5 0 , 0 0 0 { m } ^ { 2 } ）
2017
Spring Energized Seals successfully developed
2019 Localization of WSA equipment production
2023
Acquired the honor of "Outstanding Contribution Enterprise"in China's fluoroplastic processing industry
2018
Participate in the formulation of China PVDF sheet industry standard
2022
Hunan Special Engineering Plastics Research Center established at HONGDA
2024
Set up Dust-free Workshop (Class 1000 )
HONGDA got the honor of "National Single Manufacturing Champion"of PCTFE
> WORKSHOP&EQUIPMENT
Quality Control
Hongda operates an integrated management system by the ISO 9001:2015 & 14001:2015 standards.Throughout all neccessary locations, our inspection and workshop areas are temperature controlled to ensure consistency in the measurement of products.
Using our modern, qualified laboratory, we offer full traceability on all products and materials.
To meet various requirements of customers，we have more than 180sets of measuring equipments and testing facilities used for our products,covering raw material testing，production process control and finished product inspection.
Main testings carry out in our factory
Environmental Policy
Hongda is committed to protecting the environment, the health and safety of our employees. It is our policy to seek continual improvement throughout our business operations to reduce our impact on the local and global environment by conserving energy, water and other natural resources. We are committed to reducing environmental impacts from production activities in order to balance sustainable business growth and environmental conservation.
Why Choose us?
1
Over 50 years of experience in producing fluoropolymers
2
Comprehensive processing capability from semi-finished products to finished parts
3
Technical assistance on material selection
4
Flexiable cooperation mode and value-added solutions
5
Professional & Well-experienced service team
PTFE (polytetrefluoroethylene) is a versatile high-performance fluoropolymer with outstanding chemical and temperature resistance.It also has excellent electrical insulating properties.
PTFE Compounds :By adding fillers or other additives to virgin PTFE，the mechanical properties of PTFE can be enhanced.The common fillers that are used in enhancing PTFE properties are glass fibers，carbon，carbon fiber，graphite, bronze,molybdenum disulphide(MoS2),PEEKand silica.
Modified PTFE is a chemically modified version of PTFE that has new capabilities in addition to the property characteristics of virgin PTFE.(Dyneon TM TFM 1600,POLYFLONTM PTFE M-111...)
Main properties
Resistant to almost all chemicals High operating temperature Excellent electrical properties Low coefficient of friction Excellent UV resistance Non-stick characteristic Low water absorption Biocompatibility and non-toxicity
PTFE Products List
| Product Name | Diameter (mm) | Length (mm) |
| PTFE ROD | Φ10~Φ450 (Molded rod) Φ5~Φ200 (Extruded Rod) | 100-300mm (Molded) 1000 &2000mm (Extruded) |
| Molded PTFETube | OD Φ30~Φ1200 | 100-300mm |
| PTFE Pipe (Rigid) | OD Φ16~Φ410 | 4200mm |
| Flexible PTFE tube | 1.6x3.2,4x 6,6x 8,8x10 ...by mm 1/8",1/4",1/2",1"...by inch various sizes available | 50m/roll，100m/roll，200m/roll |
| PTFE SHEET | Thickness 0.1~100mm | Width x Length (mm) 500 ×500 1200 ×1200 800×800 1500 ×1500 1000 × 1000 1000×2000 |
PVDF (polyvinylidene fluoride） is a kind of melt-processable thermoplastic fluoropolymer. It is widely used in applications requiring resistance to solvents, acids and hydrocarbons at high temperature.
Main properties
Good chemical resistance Good mechanical strength High operating temperature Almost no moisture absorption Good dimensional stability Good welding performance Good electrical properties UV resistance * * High purity Low flammability
PVDF Products List
| Product Name | Thickness (mm) | Width x Length (mm) |
| PVDF SHEET | 2~20 | 1000 ×2000 1500 × 3000 1220 × 2440 |
| 20~50 | 1000 × 2000 | |
| FIBERBACKEDPVDFSHEET (glassfiber & polyester) | 2,3,4, 5 | 15 -25meters per roll 1500 x 3000 (cut sheet) |
| Product Name | Diameter (mm) | Length (mm) |
| PVDF ROD | Φ10~Φ200 | 1000 |
| PVDFWELDING ROD | Round: Φ3,Φ4,Φ5 Triangle: 3 x 3 × 5 | 2 Kgs/roll 5 Kgs/roll |
| PVDF Pipe | Φ16~Φ450 | Length:4M& 5M |
PCTFE is a unique fluoropolymer that is capable of maintaining its physical properties at exceptionally low operating temperatures.lt is an ideal sealing material under cryogenic and high pressure conditions.
Main properties
Excellentchemical resistance Resistant to cold flow Good mechanical strength Very low gas permeation Good dimensional stability Near zero moisture absorption High limiting oxygen index (LOl) * \mathbf { \sigma } Radiation resistance High transparency Liquid oxygen compatible
| Product Name | Diameter (mm) | Length (mm) |
| PCTFEROD | Φ4~Φ80 | 1000,150，50 (special length can be customized) |
| PCTFE Tube (Billet) | OD from Φ34 to Φ900 (Hundreds of sizes for choice) | 50~200mm length |
| PCTFE SHEET (Mold pressed) | Thickness 5~50 | Width x Length (mm) 120 x200 200 × 200 250 × 250 300 × 300 400 × 400 500 × 500 |
PFA (Perfluoroalkoxy alkane) is a semi-crystalline fluoropolymer developed to enhance the properties of FEP, which can be used in a wider range of temperature & environments.It has similiar properties as PTFE,but it's weldable.
Main properties
Excellent chemical resistance
High operating temperature
Outstanding stress crack resistance
Good welding performance
Good electrical properties
Excellent UV resistance
High purity grade available
Almost no moisture absorption
Good transparency
Low flammability
PFA Products List
| Product Name | Thickness (mm) | Width x Length (mm) |
| PFA SHEET | 5~50 | 120 × 200 300 × 300 200 x 200 400x500 |
| PFA SHEET (Extruded) Fiber Backed PFA SHEET (Extruded) | Thickness: 1.5,2, 2.3, 3 | 1200mm Width （Packed by rolls） |
| Product Name | Diameter (mm) | Length (mm) |
| PFA ROD | Φ8~Φ100 | 150,1000 |
| PFAWELDING ROD | Round Rod: Φ3, Φ4, Φ5 Welding Strip(WidthxThick): 7.5×2.3T，14×2.4T,17×2.0T .. | 2 Kgs/roll 5 Kgs/roll |
| PFA Tube | 1.6x3.2,4x 6,6x 8,8x10 ... by mm 1/8", 1/4",1/2", 1"... by inch Full sizes available | 100m/roll 200m/roll Flexible length |
FEP(Fluorinated ethylene propylene) is a copolymer of hexafluoropropylene and tetrafluoroethylene.It retains some inherent properties of PTFE，but does not withstand so high temperature as PTFE or PFA.
Main properties
Excellent chemical resistance High operating temperature Good electrical properties Excellent UV resistance Almost no moisture absorption Good transparency Low flammability
FEP Products List
| Product Name | Thickness (mm) | Width x Length (mm) |
| FEP SHEET (Mold pressed) | 5~50 | 120 × 200 200 × 200 250 × 250 300 × 300 400 x 400 500 × 500 |
| Product Name | Diameter (mm) | Length (mm) |
| FEP ROD | Φ8~Φ100 | 150,1000 |
| FEP Tube | 1.6x3.2, 4x 6, 6x 8,8x10 .. by mm 1/8", 1/4",1/2", 1"... by inch Full sizes available | 100m/roll 200m/roll Flexible length |
PEEK(Polyetheretherketone) is a thermoplastic polymer in the polyaryletherketone (PAEK） family，which exhibits many good characteristics such as outstanding mechanical property， thermal stability， chemical resistance,non-flammability，and nontoxic characteristics.
PEEK is available in different grades to meet requirements of many application requirements.
PurePEEK GlassfiberreinforcedPEEK Carbon fiber reinforced PEEK PEEKfilled with PTFE
8
Main properties
Hightemperature resistance Good mechanical Strength Good chemical resistance Excellent Friction and Wear Resistance Good Flame Retardant Performance Good Electrical Performance Good dimensional stability Hydrolysis Resistance
PEEK Products List
| Product Name | Diameter & Thickness (mm) | Length (mm) |
| PEEKROD | Φ30~Φ400 (Molded rod) Φ5~Φ250 (Extruded Rod) | 50-200mm (Molded) 1000 &2000mm(Extruded) |
| PEEK Tube | OD Φ30~Φ800 (Molded tube) OD Φ24~Φ360 (Extruded tube) | 50-100mm 1000-2000mm |
| PEEKSHEET | Thickness 3~ 50mm | Width:600~1250mm Length:1000,3000mm |
UHMW-PE (ultra high molecular weight polyethylene) is tough plastic with high abrasion and wear resistance. It's widely used in applications that require high wear resistance,low friction,and impact resistance self-lubrication. It has excellent mechanical properties even in sub-zero conditions. It is used for conveyor guides, wear pads,wear strips,chain guides,packaging machinery parts and marine dock fender pads etc.
We supply UHMW-PE sheet& rod and CNC machined parts.
Main properties
Excellentabrasion resistance Good impact strength Good chemical resistance Low moisture absorption UV and ozone resistant. Lowfriction
UHMW-PE Products List
| Product Name | Diameter & Thickness (mm) | Length (mm) |
| UHMW-PEROD | Φ10~Φ200 | 1000mm |
| UHMW-PE SHEET | Thickness -5~ 100mm | Width X Length 1000 × 2000mm 1500×3000mm 2000 x4000mm |
Fluoropolymer Lining
Our fluoropolymer Lining sheet are available in PVDF， PFA，PTFE，FEP， ECTFE (thickness range:1.5 - 5mm，width range 1000-1500mm)
When your applications need to resist more corrosive alkalis,acids and solvents, especially when the chemical environment temperature reaches 1 2 0 ^ { \circ } \mathsf { C } orhigher, fluoropolymers are the ideal choice for chemical lining materials.
Each fluoropolymer lining has its strengths and weaknesses.When come to specific project, it's better to check with well experienced technician or experts for choosing the suitable linings.
These linings are widely used in below applications
Pressure vessels \bullet Dual laminate tanks \bullet High-purity chemical tanks \bullet Chemical storage tanks \bullet Storage vessels \bullet Filters \bullet Large diameter chutes
Plastic MachinedParts
We can produce semi-finished polymer tubes,rods and sheets,but also have more than 20 years of experience in designing and manufacturing plastic machined parts.The combining of the two features enable us to provide clients with many value-added services and customized services.
As a professional polymer materials supplier,we work with you to understand the environment that your part will be used and can match materials for your requirements. Our team guide you for the material choice or work with you to design plastics components.
We have extensive experience in the machining of many plastics such as PTFE，TFM，PCTFE，PFA，PVDF，FEP，ETFE，PEEK，UHMWPE，VeSpel⑥, Polyimide, HDPE,ABS, PP, PVC and many more.
Our Capabilities
CNC milling
CNC turning
5-axis machining
CNC drilling
CNC cutting
Engraving
Grinding
Value-added service
LaserMark Welding Assembly Bonding
Sealing Solutions
Hongda offers a wide range of sealing products by using our regular polymer materials:PTFE、TFM、RPTFE、 PCTFE、PEEK、PFA、VICTREX CTTM200、PI, Nylon,POM,UHMW-PE...
The products can be produced based on drawings,samples or design as per specific working conditions
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Main products
Valve seat O rings Shaft seals Seal rings V ring sets Piston rings Stem Packings Back-up ring Mechanical seals ● Lip seals Gasket&Washer Bearings
Material Selection for Valve Seats & Seals
o O O
| Material Choice | Main Properties |
| Virgin PTFE | Very low coefficient of friction and excellent chemical resistance. |
| 15% and 25% Glass Filled PTFE | Enhanced wear resistance High heat resistance and improved dimensional stability Reduced cold flow and dielectric properties Good chemical resistance to organic solvents |
| 5%,15% and 25% Carbon Filled PTFE | Improved mechanical strength compared with virgin PTFE.Excellent wear properties, retains excellent frictional properties, good choice for seals and rings in dynamic and high-pressure applications |
| 5% MoS2 Filled PTFE | Increased PTFE properties of hardness and wear resistance. Increased sliding properties and decrease friction,also combine used with glassfiber |
| TFM Series | TFM offers all the properties of PTFE with greater strength ,toughness,and improved thermo-mechanical properties，less permeability,reduced cold flow deformation |
| PCTFE | Ideal sealing material for low temperature and high pressure, good mechanical properties. Widely used for LNG， ligud Hydrogen, liquid oxygen |
| PEEK | Excellent chemical resistance and mechanical properties at high temperatures. suitable for high pressure and high temperature applications |
| Carbon FilledPEEK | Many similar properties to Virgin PEEK. Particularly suitable for high temperatures and high load situations. |
| PFA | Excellent chemical and temperature resistance,electrical insulation properties |
| UHMWPE | Highly resistant to corrosive chemicals, with the exception of oxidising acids and organic solvents. |
| POM(Delrin) | Good resistance to wear and deformation under load. |
| PI (Polyimide) | higher modulus, excellent wear and friction properties, good thermal-oxidative stability and high mechanical strength. Can be used in temperature more than 300℃ |
| Customized Material | Designed & produced as per specific applications |
Spring Energized Seals
A basic spring energized seal consists of two components: a polymer-based seal jacket and spring energizer. Spring energized seals provide durable and reliable sealing solutions in critical applications and under extreme operating conditions in different industries.
The main function of the spring energizer is to provide a radial force at the seal jacket sealing points when installed into the seal cavity.This feature compensates for materials with low memory/elasticity. In addition, the spring energizer adds flexibility to the jacket sealing points to compensate for eccentricity and material wear out as well.
To meet the requirements of different media/fluids and operating conditions，a variety of spring materials are available for choice: such as 3Oo Stainless Steel Series (SS)302，304 and 316.In case of more critical applications，special materials are offered:Elgiloy ⑧ Inclone ⑧ and Hastelloy?.
Typical Applications
ValvesandManifolds Couplings
Swivel Joints
Hydraulic Couplings
Tools (drillingand downhole)
Compressors
Pumps
The design of spring energized seals depends on below five factors:
Temperature, pressure,medium,installation size, sealing movement mode
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OtherProducts
RO Membrane Fittings
ZHUZHOU HONGDA POLYMER MATERIALS CO., LTD
Add :No.869 Xianyuehuan Road, Tianyuan district, Zhuzhou, Hunan, China
Tel : + 8 6 731-22321606
Fax: + 8 6 731-28626613
Email : info@hongdapolymer.com
Zip :412007
Web :www.hongdapolymer.com
