Introduction

PTFE paste extrusion process is a special process for molding PTFE, primarily targeting PTFE fine powder. It is suitable for producing PTFE products such as pipes, rods, strips, and shaped parts, especially suitable for applications requiring high dimensional accuracy and surface quality. Due to PTFE's high molecular weight and high crystallinity, paste extrusion process requires strictly control parameters such as temperature, pressure, and extrusion speed to ensure product quality.

PTFE paste extrusion process combines the advantages of high strength, high precision, and high-efficiency production, making it a common method for manufacturing high-performance PTFE products, particularly widely used in the medical, electronics, and chemical industries.

Paste extrusion process picture reference

UF-21 Technical Index

No.	ITEM	UNIT	VALUE
	Grade		Excellent Grade	First Grade
1	Appearance		White powder
2	Cleaness		Excellent Grade	First Grade
3	Bulk Density	g/l	475±100
4	Tensile Strength ≥	Mpa	24
5	Elongation	%	480-550	300-650
6	Particle Size	um	400-575
7	Moisture Content≤	%	0.03
8	Standard Relative Density		2.200-2.230
9	Maximum Reduction Ratio		400:1
10	Extrusion Pressure	Mpa	20.0-40.0(400:1)
11	Processing Method		Paste Extrusion

Application

Mainly used for low or medium density seal tape and short fiber etc.

PTFE Paste Extrusion Process

PTFE Fine Powder

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