PTFE(Teflon)Sewing Thread

Daily productivity reaches 15 tons, various size and color practical.Moreover, with excellent heat-resistant, high tensile strength, excellent abrasion resistant and smooth convenient for sewing, Waterfiltech PTFE sewing thread is your super-excellent choice.
Customization Accepted.


Standard density Types of PTFE thread(Can be customized)

 1350±50 dtex(1200 den)  2600±100 dtex(2400 den)
1600±50 dtex(1500 den) 1350±50 dtex     (1200 den)

Standard Types of PTFE thread(Can be customized)


solid thread  twin thread  coloured thread
mixed colour thread pure thread  mixed thread


Standard Net weight/spool of PTFE thread(Can be customized)

500g 600g
800g 1000g

1.We use “dtex” as the unit of linear density(a certain quality of unit length) according to the national standard and requirement. 1350 dtex means that the quality of 10000 meters sewing thread is 1350g. We also use another linear density unit “den”(Daniel) or “D”,which is the quality of the 9000m length, so 1 dan equal 0.9 dtex.
2.In order to avoid harmful gases, please donot burn the PTFE.
3.After sewing PPS filter bag,the resilience of pinhole may be bad and pinhole may be bigger.So we suggest using thinner needle or contact our engineer for better suggestion.
4.To guarantee the quality of the PTFE thread,all of the thread made from PTFE yard and without knot.
5.Because PTFE products are slippery, you can add a little silicone oil if needle skip during operation.

PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. PTFE has one of the lowest coefficients of friction of any solid. PTFE is used as a non-stick coating for pans and other cookware. It is very non-reactive, partly because of the strength of carbon–fluorine bonds, and so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear and energy consumption of machinery.

PTFE Sewing thread technical data

NO. ITEM Index Testing environment Remark
1 linear density 1200±50den Normal Temperature
2 Tensile strength ≥33N Normal Temperature(Winter≤16℃)
3 breaking strength ≥2.6cN/den Normal Temperature
4 Elongation 4~6% Normal Temperature
5 Thermal shrinkage ≤2.5% 260℃ 2h
6 Plied yarn 3
7 Continue Lenght ≥5500m No joint
8 Roller net weight ≥0.65kg
9 Lenght/1000g 7000-7400m


Application of PTFE sewing thread


                             Name              Density types                                   Application
special thread for filter bag sewing 1350±50 dtex     (1200 den) double needle thread for sewing filter
Special thread for the top or the bottom of filter bag 2600±100 dtex   (2400 den) Singer needle thread for sewing the top or the bottom of filter bag
Special thread for PPS filter bag 1600±50 dtex     (1500 den) for sewing PPS filter bag
Coloured sewing thread for filter bag sewing 1350±50 dtex     (1200 den) special using thread for filter bag



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