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Spray anti-corrosion filter

The spray anti-corrosion filter designed by Shanghai Wuyan is mainly designed to meet customers' requirements for harsh working conditions such as str

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The spray anti-corrosion filter designed by Shanghai Wuyan is mainly designed to meet customers' requirements for harsh working conditions such as strong acid and high chloride ions. The interior of the filter can be coated with PTFE, PTFE lining, rubber lining, hot rolling plastic, etc. to achieve anti-corrosion purposes.

Characteristics of Teflon Spray Coating

1. Non stick: Almost all substances do not stick to PTFE coatings, and very thin films also exhibit good non stick properties.

2. Has heat resistance: Teflon coating has excellent ground heat resistance and low temperature resistance, with a short-term high temperature resistance of up to 300 ℃. It is generally used continuously between 240 ℃ and 260 ℃ and has significant thermal stability. It can work at freezing temperatures without embrittlement and does not melt at high temperatures.

3. Moisture resistance: Teflon coating has a surface that is non stick to water and oil, and is not easily absorbed by other solutions during production operations. If there is a small amount of dirt, it can be easily wiped off. Short downtime, saving time and improving work efficiency.

4. The PTFE coating has a low coefficient of friction, and the coefficient of friction changes when the load slides, with a value only between 0.05-0.15.

5. Has wear resistance: Under high loads, it has excellent wear resistance. Under certain loads, it has the advantages of wear resistance and non stick double-layer.

6. Corrosion resistance: Teflon is almost not corroded by drugs and can protect parts from any type of chemical corrosion.

Types of Teflon spray coating

1. PFE (soluble tetrafluoroethylene) coating spraying

2. FEP (F46) coating spraying

3. ETFE (F40) coating spraying

4. Halar ECTFE (F30) coating spraying

5. Xylan PTFE functional coating spraying

6. Wear resistant functional coating spraying

List of Product Features


characteristic		astm standards	unit	PTFE (F₄)	FEP (F₄₆)	PFA	ETFE (F₄₀)	ECTFE (F₃₀)
mechanical properties	proportion	D792		2.15	2.15	2.15	1.76	1.67～1.69
	hardness	D2240	R	50~60	56	60	72	72
	coefficient of friction	D1894	quiet	0.12～0.15	0.12～0.20	0.2	0.24～0.50	0.25
	coefficient of friction	D1894	move	0.05～0.10	0.08～0.30	0.10～0.30	0.30～0.40	0.19
	tensile strength	D4457 D1708 D638	Mpa	21~35	23	25	40~47	50
	elongation	D4457 D1708 D638	%	300~500	325	300	150~300	250~290
	Bending coefficient	D790	psi	72000	85000	85000	170000	170000
	impact strength	D256	Joules per meter	189	Not broken	Not broken	Not broken	Not broken
	Contact Angle		linear measure	104~111	95~105	104~111	90~100	95~100
Thermal characteristics	melting point	D3418	℃	327	260	305	267	235~240
	sintering temperature		℃	380~430	360~390	380~400	300~325	250~270
	Continuous use temperature		℃	290	205	260	150	150
	Indirect use temperature		℃	315	230	290	200	200
	Flame level	UL94		V-0	V-0	V-0	V-0	V-0
	Limiting Oxygen Index	D2863	%	>95	>95	>95	30~36	52
	Combustion heat	D240	Million joules per kilogram	5.1	5.1	5.3	13.7	13.7
	thermal conductance		W/m.k	0.25	0.2	0.19	0.24	0.14
	Chemical resistant solvents	D534		excellent	excellent	excellent	excellent	excellent
	24-hour water absorption	D570	%	<0.01	<0.01	<0.03	<0.03	<0.03
	*Salt spray resistance (aluminum)	B-117	hour	744+	744+	1000	1000+	1000+
	Weather resistance	Florida climate	year	20	20	10	15	15
	Insulation constant	D150	1MHz	2.1	2.1	2.1	2.6	2.6
Electrical characteristics	Dielectric Strength	D149	V/um	18	53	80	79	79
	permittivity	D150	1MHz	<0.0001	0.0006	0.0001	0.007	0.007
	Arc Resistance	D495	second	>300	>300	>180	122	125
	Volume resistivity	D257	ΩNaN	>10¹⁸	>10¹⁸	>10¹⁸	>10¹⁷	>10¹⁴
	Surface Resistivity	D257	Ω/square	>10¹⁸	>10¹⁴	>10¹⁷	>10¹⁵	>10¹⁴

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