Tools & Abrasives buying guideLast updated October 2026

Fiberglass Mesh

The invisible backing that keeps fragile slabs in one piece.

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Price level
Budget
Best to buy
Feb–Apr, Sep–Nov
Top sources
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Close-up of woven glass fibre mesh

Photo: M0tty, CC BY-SA 3.0

Overview

What it is

Fiberglass mesh is bonded to the back of slabs and tiles with epoxy or polyester resin, holding fragile stone together through processing, shipping and installation. It's standard on onyx, many exotic granites and quartzites, and thin veneers. Mosaics are also mounted on mesh sheets.

Mesh must be alkali-resistant and compatible with the setting adhesive. Some adhesives bond poorly to resin-backed stone, so check with the adhesive maker.

Weight
About 75 to 160 g/m²
Opening
About 4 × 4 to 10 × 10 mm
Coating
Alkali-resistant (AR)
Bonded with
Epoxy or polyester resin

Applications

Best used for

  • Onyx and fragile slabsPrevents cracking in handling.
  • Resin-line reinforcementApplied automatically on the line.
  • Thin veneers and light panelsAdds tensile strength.
  • Mosaic sheetsMesh-mounted mosaics.

Origins

Which countries to source from

The producing countries that matter for fiberglass mesh, what each is known for, and a direct link to vendors there.

Timing

Best time of year to buy

Consumables are bought all year, so timing is about stock: order ahead of the Lunar New Year shutdown in China and the August break in Italy, and buy trial quantities at the spring and autumn fairs.

  1. Jan: slower or pricier
  2. Feb: best time to buy
  3. Mar: best time to buy
  4. Apr: best time to buy
  5. May: normal
  6. Jun: normal
  7. Jul: normal
  8. Aug: slower or pricier
  9. Sep: best time to buy
  10. Oct: best time to buy
  11. Nov: best time to buy
  12. Dec: normal
Best time to buy Normal Slower or pricier
  • Chinese toolmakers close for Lunar New Year; place large orders by early December.
  • Italian and Spanish makers slow in August.
  • Hold four to eight weeks of stock of your fastest-moving tools to ride out shipping delays.

Import costs

Tariffs and import duties

Base duties for the main import markets, the extra US surcharge by origin, and the trade remedies to check before you quote a landed price.

HS codes

  • 7019.66 / 7019.69Open-mesh glass-fibre fabrics

Base import duty (MFN)

  • United States6% to 7.3%
  • European Union7% + anti-dumping62.9% anti-dumping duty on Chinese open-mesh glass-fibre fabrics, extended to some re-routings.
  • United Kingdom6%

Importing into the US? Add the 2026 origin surcharge

Section 301 rates in force since 24 July 2026, stacked on the MFN rate above.

  • China flagChina+12.5% & 30112.5% Section 301 (2026) plus the legacy China Section 301 duty (25% on most stone and machinery lines), on top of MFN.
  • India flagIndia+10%Section 301 (2026) adds 10% on top of the MFN rate.
  • Turkey flagTurkey+12.5%Section 301 (2026) adds 12.5% on top of the MFN rate.
  • The EU has initiated an investigation into potential circumvention of existing anti-dumping duties on Chinese open-mesh glass-fibre fabrics by imports consigned from Kosovo, Moldova, North Macedonia and Serbia.

Rates checked October 2026. Indicative rates for planning, not a customs ruling. Duties depend on the exact tariff line, origin, trade agreements and the rules in force on the day of entry. Confirm with a licensed customs broker before you price an order.

Before you order

Buying checklist

  1. 1Ask for alkali-resistant (AR) coating.
  2. 2Match mesh weight to the slab's fragility.
  3. 3Check adhesive compatibility on the back.
  4. 4Watch EU anti-dumping when sourcing from China.

Price level: Inexpensive, bought by the roll.

Vendor Network

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