High Purity Fluoropolymer Coating & Lining Solutions

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High Purity

Fluoropolymer Coating & Lining Solutions

High Purity

We have over 20 years of experience in high-purity fluoropolymer coating and lining, supported by in-house cleanroom facilities. Coating impurity levels are controlled below 1PPb, and linings below 5PP, meeting the strict purity demands of semiconductor and precision manufacturing industries.

Industries

High purity fluoropolymer coatings are ideal for industries that demand strict contamination control and consistent chemical performance, such as:

Semiconductor processing equipment
Active pharmaceutical ingredient (API) production

Applications

Common applications focus on maintaining purity and equipment integrity in various process steps, including:

Blending operations
Precision filtration
Controlled drying
Mobile chemical transport tanks
Storage vessels
Semiconductor part cleaning and transfer
Packed towers
Resin columns

High Purity Fluoropolymer Coating

Our high purity coating is available in two types: liquid and powder. Liquid fluoropolymer coating is typically applied manually and used on complex areas like grooves or sharp corners where powder coating can't form a uniform film. It requires more precise control over thickness and is not compatible with standard mechanical spray systems.

Powder coating is more efficient for large surfaces and is usually applied through electrostatic spraying. Although it's faster for mass processing, the film thickness is slightly harder to control compared to liquid coating.

With over 20 years of experience in high purity coating, we operate a certified ISO 9001 and ISO 14000 facility equipped with a Class 1000 cleanroom for spray processing. Our coatings are approved by Chemours, Solvay, and Daikin. We ensure ultra-low metal ion contamination, total metal impurities can be controlled below 1 ppb.

Metallic Impurity Levels in Finished Coating (Performance Data) Metal Content Evaluation of High-Purity Coating Over 12 Days (unit: ppb)

	1 day	2 days	3 days	4 days	5 days	6 days	7 days	8 days	9 days	10 days	11 days	12 days
Li	0	0	0.000	0.000	0.000	0.001	0.001	0.001	0.001	0.000	0.001	0.001
Na	0.0336	0.0181	0.037	0.070	0.102	0.122	0.142	0.106	0.176	0.190	0.106	0.176
Mg	0.0249	0.0281	0.002	0.005	0.002	0.004	0.005	0.001	0.001	0.002	0.001	0.001
Al	0.0304	0.0359	0.004	0.008	0.007	0.002	0.002	0.002	0.001	0.001	0.002	0.001
K	0.0071	0.0052	0.005	0.007	0.008	0.022	0.023	0.006	0.014	0.013	0.006	0.014
Ca	0.1123	0.0512	0.020	0.023	0.022	0.024	0.022	0.016	0.021	0.025	0.016	0.021
Ti	0.0019	0.0009	0.001	0.001	0.002	0.001	0.001	0.001	0.001	0.000	0.001	0.001
V	0.0006	0.0004	0.001	0.001	0.001	0.000	0.000	0.001	0.001	0.000	0.001	0.001
Cr	0.0039	0.0032	0.049	0.037	0.109	0.062	0.013	0.000	0.011	0.037	0.000	0.011
Mn	0.0159	0.0104	0.003	0.003	0.007	0.003	0.002	0.001	0.001	0.003	0.001	0.001
Fe	0.0871	0.0567	0.090	0.169	0.087	0.065	0.120	0.045	0.058	0.104	0.045	0.058
Co	0.0012	0.0006	0.001	0.001	0.001	0.001	0.001	0.001	0.001	0.000	0.001	0.001
Ni	0.0249	0.0171	0.212	0.096	0.214	0.045	0.033	0.037	0.009	0.073	0.037	0.009
Cu	0.0044	0.0026	0.021	0.025	0.030	0.020	0.018	0.055	0.055	0.037	0.055	0.055
Zn	0.1046	0.0813	0.014	0.030	0.037	0.048	0.055	0.087	0.087	0.075	0.087	0.087
As	0.0006	0.0006	0.003	0.002	0.002	0.003	0.003	0.004	0.002	0.003	0.004	0.002
Zr	0.0004	0.0002	0.001	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000
Mo	0.0021	0.0013	0.002	0.003	0.002	0.002	0.003	0.000	0.000	0.003	0.000	0.000
Ag	0.0001	0.0003	0.000	0.000	0.000	0.000	0.000	0.000	0.001	0.000	0.000	0.001
Cd	0	0	0.005	0.004	0.003	0.009	0.006	0.000	0.000	0.000	0.000	0.000
Sn	0.0051	0.0021	0.001	0.001	0.001	0.001	0.001	0.004	0.000	0.000	0.004	0.000
Ba	0.000	0.000	0.000	0.000	0.035	0.000	0.000	0.000	0.001	0.001	0.000	0.001
Ta	0.000	0.000	0.000	0.001	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000
W	0.0028	0.0026	0.000	0.001	0.000	0.000	0.000	0.020	0.000	0.000	0.020	0.000
Pt	0.0003	0	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000
Au	0.000	0.000	0.000	0.000	0.000	0.001	0.000	0.000	0.000	0.000	0.000	0.000
Pb	0.0003	0.0004	0.001	0.001	0.000	0.001	0.001	0.001	0.000	0.003	0.001	0.000
Si	0.7387	0.6761	0.676	0.643	0.001	0.001	0.000	0.000	0.001	0.000	0.000	0.000

Photolithography reactor

PI reaction vessel (for polyimide synthesis)

Wafer transfer robot arm

Double-sided precision polishing machine

Quartz lifting manipulator

Wafer cleaning system base plate

High Purity Fluoropolymer Lining

Our high-purity fluoropolymer lining options mainly include two structures: chemically treated smooth sheets and fiberglass-reinforced composite plates. Materials used cover PFA-backed fiberglass plates, modified PTFE-backed fiberglass plates, modified PTFE smooth sheets, standard PTFE sheets, and ECTFE fiberglass composite plates. For cylindrical sections, linings are applied using automated welding systems. For circular seams and nozzles, manual welding is used to ensure precision in complex areas.

We use fluoropolymer lining materials from globally recognized suppliers such as Chemours (DuPont), Solvay, and Daikin. Lining work is carried out in our Class 10,000 cleanroom facilities. Finished linings meet high purity standards, with total metal impurities controlled below 5 PPT.

High Purity Lining Coating Metal Impurity Composition Table

Analyzed elements		Unit	Sample B analysis			Finished sample B
			May 25th	June 8th	June 16th	May 25th	Before immersion
Trace cation content (max)	Lithium (Li) ≤	ppt	0.225	0.063	0.043	0.017	0.114
	Beryllium (Be) ≤	ppt	0.085	0.098	0.028	0.057	0.05
	Boron (B) ≤	ppt	0.899	0.773	0.018	0.616	0.155
	Sodium (Na) ≤	ppt	0.788	0.507	0.559	0.197	0.191
	Magnesium (Mg) ≤	ppt	0.105	0.582	0.555	0.501	0.085
	Aluminum (Al) ≤	ppt	0.082	0.766	0.433	0.258	0.044
	Silicon (Si) ≤	ppt	0.064	0.272	0.024	0.198	0.396
	Phosphorus (P) ≤	ppt	0.025	0.292	0.987	0.284	0.036
	Potassium (K) ≤	ppt	0.114	0.421	0.347	0.069	0.363
	Calcium (Ca) ≤	ppt	0.57	0.171	0.781	0.522	0.128
	Titanium (Ti) ≤	ppt	0.073	0.18	0.053	0.073	0.061
	Vanadium (V) ≤	ppt	0.086	0.075	0.048	0.043	0.025
	Chromium (Cr) ≤	ppt	0.066	0.764	0.172	0.472	0.04
	Manganese (Mn) ≤	ppt	0.504	0.104	0.199	0.11	0
	Iron (Fe) ≤	ppt	0.469	0.362	0.141	0.613	0.034
	Cobalt (Co) ≤	ppt	0.489	0.859	0.091	0.083	0
	Nickel (Ni) ≤	ppt	0.248	0.109	0.126	0.65	0.024
	Copper (Cu) ≤	ppt	0.227	0.11	0.188	0.688	0.104
	Zinc (Zn) ≤	ppt	0.188	0.037	0.112	0.137	0.377
	Gallium (Ga) ≤	ppt	0.035	0.018	0.037	0.029	0.04
	Germanium (Ge) ≤	ppt	0.277	0.173	0.364	0.45	0.18
	Arsenic (As) ≤	ppt	0.014	0.178	0.735	0.595	0.183
	Strontium (Sr) ≤	ppt	0.505	0.19	0.151	0.031	0.011
	Zirconium (Zr) ≤	ppt	0.065	0.033	0.066	0.045	0.029
	Niobium (Nb) ≤	ppt	0.003	0.006	0.016	0.056	0.068
	Molybdenum (Mo) ≤	ppt	0.139	0.216	0.109	0.108	0.055
	Silver (Ag) ≤	ppt	0.342	0.256	0.295	0.258	0.191
	Cadmium (Cd) ≤	ppt	0.071	0.047	0.075	0.027	0.036
	Indium (In) ≤	ppt	0.011	0.011	0.004	0.015	0.005
	Tin (Sn) ≤	ppt	0.16	0.247	0.58	0.232	0.178
	Antimony (Sb) ≤	ppt	0.358	0.215	0.396	0.307	0.007
	Barium (Ba) ≤	ppt	0.285	0.091	0.369	0.343	0.09
	Tantalum (Ta) ≤	ppt	0	0	0	0	0.023
	Platinum (Pt) ≤	ppt	0.157	0.96	0.272	0.483	0.107
	Gold (Au) ≤	ppt	0.11	0.235	0.23	0.554	0.111
	Mercury (Hg) ≤	ppt	0.159	0.207	0.158	0.16	0.222
	Thallium (Tl) ≤	ppt	0.701	0.163	0.122	0.148	0.167
	Lead (Pb) ≤	ppt	0.216	0.099	0.178	0.177	0.175
	Bismuth (Bi) ≤	ppt	0.018	0.072	0.012	0.025	0.16

Examples of Fluoropolymer Lining Applications

New-PTFE lining for electronic-grade HF acid storage tank

PTFE lining for electronic chemical storage tank

NF₃ reaction tank lined with PFA for electronic-grade applications

N-PTFE GBK lining for electronic-grade hydrochloric acid storage tank

Cartridge filter lined with electronic-grade PFA

PFA lining for high-temperature electroplating tank

Solutions

Interested in our fluoropolymer coating & lining solutions?

Contact us today to explore how our customized protection technologies can meet your corrosion resistance and purity protection requirements.

Email: wuzehui@hotmail.com

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Fluoropolymer Coating & Lining

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