Certified concrete fiber, direct from the manufacturer

REINFORCE GLOBAL is a leading manufacturer of high-quality reinforcement materials based on polypropylene, fiberglass, and basalt fiber.

ISO9001

Reinforce fiber bags: ReinStrong and ReinFlex macro fiber and ReinLite micro fiber, each with a pile of fiber in front

Our products are widely applied in residential, industrial, road, and hydraulic construction projects at home and abroad.

We are committed to continuous improvement in quality control and compliance with international standards, ensuring consistent reliability and proven safety in every product we deliver.

Our mission is to provide durable and high-performance reinforcement for concrete structures that meets the latest construction standards!

Own production 500+ partners
Export to 15 EU countries

Key markets:

  • Spain
  • Portugal
  • The Netherlands
  • Poland
  • Germany
  • Hungary
  • Denmark
  • France

Become a distributor

Selection

Which fiber do you need?

Find your task in the table. If in doubt, send us a request and we will advise.

A worker pours ReinStrong fiber from the bag into a concrete mixer on site
TaskWe recommend
Replace steel mesh in floors and slabs on grade ReinStrong or ReinFlex
Floors for forklifts and racking ReinFlex
Stop shrinkage cracks in screed, plaster and concrete ReinLite
Plasters, dry mixes, gypsum, screeds ReinGlass or ReinLite
High temperatures, abrasion resistance, floors to be ground and polished ReinBasalt

Full comparison table of all our fibers and steel fiber →

Why Reinforce

Fiber direct from the manufacturer

We are the manufacturer: no middlemen, and we answer for every batch ourselves.

Our own production

We control the raw materials and every batch of fiber.

Technical support

Dosage calculation, trial mixes and project support.

Product documents

A technical data sheet (TDS) and quality certificate for every product. ISO 9001:2015 quality management for polypropylene and glass fiber.

Export to 15 EU countries

We are looking for distributor partners and will help with orders and delivery to your country.

Certificates and compliance

ISO 9001:2015, certificate No. UA.QM.ASCB.057.01-26, valid until February 25, 2029

How it works

Steel mesh reinforces one plane. Fiber reinforces all of the concrete

Mesh lies in a single plane and, under workers' feet, often ends up at the bottom of the slab. Fibers spread throughout the entire volume, from the base to the surface, and stitch microcracks together so they cannot grow.

Micro fiber protects fresh concrete from shrinkage in the first hours. Macro fiber carries loads in hardened concrete and replaces steel mesh in floors and slabs on grade.

Fiber vs steel mesh: comparison
  • No tying and placing of steel mesh
  • Pour right away, even with a laser screed
  • No corrosion near the surface
  • Fewer shrinkage cracks
  • Bags of a few kilograms instead of tons of steel
History

Fiber: a method proven over millennia

Ancient builders added straw to clay bricks, and in Europe lime plaster was mixed with horsehair for centuries. Glass fiber reinforced concrete, polypropylene fiber and basalt fiber appeared in the 1960s–70s.

Today fiber-reinforced concrete is covered by international standards: ACI 544 since 1973 and the European standard EN 14889-2.

Read the history of fiber →
Blog

Useful reading on fiber

All blog posts →
Questions

Frequently asked questions about concrete fiber

What is concrete fiber?

Fibers are short strands of polypropylene, glass, basalt or steel that are added to concrete, screed or mortar. They spread throughout the mix, reduce shrinkage cracks and, in the case of macro fiber, reinforce hardened concrete.

Can fiber replace steel mesh in a floor?

Yes. In slabs on grade and industrial floors, structural macro fiber (ReinStrong or ReinFlex) replaces steel mesh when the dosage is confirmed by design calculations. In load-bearing structures (suspended slabs, beams, columns), fiber complements the main rebar but does not replace it.

How much fiber should be added per 1 m³ of concrete?

ReinLite, ReinGlass and ReinBasalt micro fibers for concrete and screeds usually need 0.6 to 1.5 kg/m³, and ReinStrong and ReinFlex macro fibers 1.8 to 8 kg/m³ depending on the load. The ReinStrong DoP dose, which provides fR1 ≥ 1.5 MPa and fR4 ≥ 1.0 MPa, is 4.5 kg/m³. We will match the exact dosage to your project.

What is the difference between micro fiber and macro fiber?

Micro fiber protects fresh concrete from shrinkage cracks in the first hours after placing. Macro fiber works in hardened concrete: it holds cracks under load and replaces steel mesh.

Who makes Reinforce fiber?

Reinforce Global is a European manufacturer of concrete fibers. We make the fiber at our own production facility, sell without middlemen and export to 15 EU countries.

What certifications do your fibers have?

Our quality management system is certified to ISO 9001:2015 (certificate No. UA.QM.ASCB.057.01-26) for polypropylene and glass fiber, and our products carry CE marking. EN 14889-2 certification of our polypropylene fibers is in progress at TSÚS in Bratislava, where our ReinStrong and ReinFlex macro fibers were tested to EN 14651 (CMOD test) in summer 2026. We send technical data sheets on request.

Which countries do you export to?

We export to 15 EU countries. Our key markets include Spain, Portugal, the Netherlands, Poland, Germany, Hungary, Denmark and France. Send us a request, and we will confirm the lead time and delivery cost for your country.

Are you looking for distributors in the EU?

Yes. We are looking for distributor partners in the EU: building-materials distributors, suppliers to concrete plants and dry-mix producers. We will help you choose the right fiber range and assist with orders and delivery to your country.

Become our distribution partner

We are looking for distributor partners in new markets and look forward to your request. Tell us about your company and market, and we will be glad to help with your order, the right fiber range and delivery to your country.

  • Our own production
  • Export to 15 EU countries
  • Help with orders and delivery to your country

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