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Kaxite Seals produces expanded PTFE joint sealant from 100% white virgin PTFE resin with a continuous self-adhesive strip, so your maintenance team can apply it straight to the flange face — no measuring, no cutting, no waiting for a die-cut gasket to arrive.
It is the practical answer for pitted, warped, glass-lined or irregular flanges that a flat gasket simply will not seal. The soft, compressible ePTFE cord flows into surface irregularities at low bolt load, then resists aggressive chemicals and constant thermal cycling for the life of the joint.
You order straight from our Ningbo production line. No trading company markup, no hidden layer between your purchase order and the price you pay per spool.
Widths from 3 mm to 100 mm, thicknesses from 0.4 mm to 8 mm and spool lengths from 4 m to 30 m. Non-standard dimensions are produced to your drawing or sample.
The continuous adhesive strip holds the cord in position on the flange face, cutting installation time on large or vertical flanges and reducing rework on site.
Density, tensile strength, elongation and compressibility are checked on every production run, so the second container matches the first sample you approved.
Neutral cartons, private-brand spool labels, custom pallet marking and full export documentation for distributors and industrial suppliers.
Standard production covers the full width and thickness matrix below. Width is measured across the cord, thickness across the profile, and spool length is the total cord length supplied per reel. Custom widths outside this range are available on request — send your specification and we will quote the tooling and unit price.
Swipe horizontally to see the full size table →
| Width (mm) | Thickness (mm) | Spool Length (m) |
|---|---|---|
| 3.0 | 1.5 | 30.0 |
| 3.0 | 2.0 | 30.0 |
| 4.0 | 2.0 | 30.0 |
| 5.0 | 2.0 | 25.0 |
| 5.0 | 3.0 | 25.0 |
| 7.0 | 2.5 | 20.0 |
| 7.0 | 3.0 | 20.0 |
| 8.0 | 3.0 | 10.0 |
| 9.0 | 4.0 | 10.0 |
| 10.0 | 3.0 | 20.0 |
| 10.0 | 4.0 | 20.0 |
| 12.0 | 1.0 | 20.0 |
| 12.0 | 4.0 | 10.0 |
| 14.0 | 5.0 | 10.0 |
| 16.0 | 5.0 | 10.0 |
| 17.0 | 6.0 | 4.0 |
| 20.0 | 7.0 | 5.0 |
| 22.0 | 7.0 | 7.0 |
| 25.0 | 8.0 | 5–10 |
| 28.0 | 5.0 | 5–10 |
| 30.0 | 5.0 | 5–10 |
| 40.0 | 4.0 | 5–10 |
| 50.0 | 4.0 | 5–10 |
| 60.0 | 3.0 | 5.0 |
| 70.0 | 3.0 | 5.0 |
| 80.0 | 2.5 | 5.0 |
| 100.0 | 0.4 | 15–30 |
| 100.0 | 0.5 | 15–30 |
| 100.0 | 1.0 | 15–30 |
Spool lengths shown are standard. Custom reel lengths, cut-to-length strips and pre-formed gasket rings are available for OEM and project orders.
Swipe horizontally to see the full property table →
| Property | Value | Test Standard |
|---|---|---|
| Working temperature | −268 °C to +280 °C (melting point 327 °C) | ASTM D 4895 |
| Working pressure | ≤8 MPa (liquid service) | JIS K 6891 |
| Working medium | All media except molten metal and liquid or gaseous fluorine; complies with FDA 21 CFR 177.1550 | — |
| Tensile strength | ≤10 MPa | JIS K 6891 |
| Bolt pressure | 8–20 MPa (for 3–25 mm width) | — |
| Density | 0.7–0.8 g/cm³ | ASTM D 4895 |
| Elongation | ≥20% | — |
| Compressibility | ≤40% | ASTM F-38 |
| Volatility | ≤1.0% | JIS K 6892 |
Because the cord conforms to almost any flange geometry and resists nearly every industrial chemical, it is specified across a very wide range of sealing duties:
Particularly recommended where flange face precision is poor, the seating surface is rough or uneven, the geometry is irregular, or the environment combines strong corrosion with a lightly contaminated medium.
Yes. Widths between 3 mm and 100 mm and thicknesses between 0.4 mm and 8 mm are standard. Non-standard profiles, cut-to-length strips and pre-formed rings are produced to your drawing — send the specification and we will confirm tooling and unit price.
The MOQ is flexible. We accept small trial orders so you can validate performance in real service, as well as full container loads for ongoing distribution programmes.
Standard sizes ship quickly from stock. Custom widths, private-label packaging and large project volumes are confirmed at the time of quotation so you can plan your production or installation schedule accurately.
The material meets FDA 21 CFR 177.1550. It is produced in a dust-free workshop from 100% virgin PTFE, so there is no contamination of the process medium and no recycled resin in the compound.
Yes. We supply neutral export cartons or customer-branded spool labels, cartons and pallet marking. Distributors typically combine private-label packing with mixed-size containers.
Density, tensile strength, elongation, compressibility and volatility are measured on every production run against ASTM and JIS methods. Batch records can be supplied with the shipment on request.
Send your width, thickness, spool length, quantity and destination port. Our sales engineers reply with a quotation, available samples and the packing options for your market.
Address
No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
