No. Both begin as glass fibre, but high silica cloth is chemically leached until more than 96 percent of the remaining material is silicon dioxide, against roughly 52 to 56 percent in ordinary E-glass.

The consequence is a large difference in temperature capability. E-glass works to around 500 to 550 degrees Celsius. High silica works continuously to 1000 degrees with a softening point around 1700. Below 500 degrees, ordinary fiberglass is cheaper and entirely adequate. Above it, no amount of coating will make E-glass behave like high silica.

Continuous use up to 1000 degrees Celsius, with a softening point around 1700 degrees.

Those are two different measurements and confusing them causes specification errors. The continuous rating is where the fabric remains functional over long service. The softening point is where the silica itself begins to lose structure. Neither figure applies to a coated product, because the coating always has a lower limit than the cloth beneath it and the lower figure governs.

Ask for the loss on ignition figure and a chemical analysis. Both are routine tests and any manufacturer producing this material properly will have them.

For independent confirmation, request a sample and have it tested at your own laboratory or a third party. We encourage this. A supplier who becomes evasive when asked for batch level data is usually trading rather than manufacturing, and the numbers they quote may have originated several steps upstream.

Standard production runs from 0.6 mm to 1.35 mm. Other thicknesses are produced to order.

Worth knowing before you choose: thickness governs mechanical durability far more than temperature capability. A 0.8 mm cloth and a 1.35 mm cloth of the same grade withstand the same temperature. The heavier one survives more handling. If your application is thermally demanding but mechanically gentle, the lighter specification may serve better at lower cost.

Choose on hazard rather than on temperature. Vermiculite for molten metal splash, which is why welding and foundry products use it. Silicone for abrasion resistance, water repellency and easier handling. Graphite where the fabric moves against metal and needs a low friction surface. PTFE where chemical exposure accompanies the heat. Aluminium foil where the heat is radiant rather than conductive. Uncoated where pure thermal capability matters most.

If you are unsure, describe what the fabric will face rather than naming a coating, and we will recommend one. It is a faster route to the right answer than working through the options yourself.

Yes, and this is one of its practical advantages over materials that beat it on raw temperature resistance. It cuts, sews and coats using conventional textile methods, which is what allows it to become blankets, jackets, covers and sleeves rather than only flat sheet.

One detail matters if you convert it yourself: use a high temperature sewing thread that matches the fabric rating. A 1000 degree blanket stitched with ordinary thread fails at the seam long before the cloth is troubled. We produce a matching thread for exactly this reason.

No. High silica fiberglass cloth is non-asbestos, non-toxic and eco-friendly. It is a manufactured inorganic glass fibre with the non silica oxides chemically removed.

This is a significant part of why the material has gained ground in personnel protection applications. Several older refractory materials now face classification and handling restrictions in various markets, which has moved buyers toward alternatives that do not carry the same regulatory burden.

Ceramic fibre reaches higher temperatures, so on pure heat resistance it wins. High silica is more flexible, easier to cut and sew, and does not shed the same way, which matters for anything handled by people rather than installed once and left.

There is also a regulatory dimension worth checking. Some refractory ceramic fibres face classification and handling restrictions in certain markets, and that has moved a number of buyers toward high silica for applications involving personnel contact. Confirm the rules for your destination market before specifying either material.

Yes. Samples of standard specifications are normally available immediately, and we would rather you test the material than take our datasheet on trust.

Tell us the application when you request one. Handling and drape differ noticeably between weaves, thicknesses and treatments, and a sample matched to your actual use tells you far more than whichever roll happens to be nearest the door.

It depends on whether the specification is standard or custom. Stock widths and thicknesses carry a low minimum because the material already exists in our warehouse. A custom weave, width or surface treatment needs its own production run, which raises both the minimum and the lead time.

Tell us the specification and rough volume and we will confirm the exact figure with your quotation rather than quoting a generic minimum that may not apply to your case.

Both. We supply bulk roll goods and cut pieces, and we convert the fabric in our own workshops into fire blankets, welding blankets, curtains, sleeves and insulation covers.

Because the weaving and the converting happen in the same plant, an OEM programme can specify the base cloth as well as the finished item. That is difficult to arrange when a converter buys fabric on the open market, and it is why several of our customers moved their whole programme here rather than splitting it between two suppliers.

Payment is normally by T/T, structured as a deposit with the balance settled before shipment. We confirm the exact split with your quotation.

EXW, FOB, CIF and DAP terms are all available, so you can pick whichever fits how your freight is already arranged. If you have a nominated forwarder we will work with them directly.