Stealth Macro Synthetic Fiber for Concrete | Finishable Structural Crack Control

Stealth macro synthetic fiber

ECOCRETE™ stealth macro synthetic fiber is a high-performance polyolefin macrofiber engineered to replace or reduce secondary steel reinforcement in slabs, decks, pavements, and precast. It creates a uniform three-dimensional network, improving flexural toughness, impact and fatigue resistance, and reducing plastic and drying-shrinkage cracking. It is non-corrosive, pump-friendly, and designed for hard-troweled finishes.

Stealth macro synthetic fiber is a geometrically engineered polyolefin macrofiber that disperses rapidly in concrete to form a dense reinforcement network. Compared with welded wire mesh or steel fibers, it offers fast dosing, no corrosion risk, and consistent post-crack load capacity while maintaining finishability on broomed or hard-troweled slabs. Industry product data for this class confirms its use in slab-on-ground, overlays, composite metal decks, pavements, bridge decks, mass concrete, and precast elements.

Technical Parameter

Material: Polyolefin macro synthetic fiber
Geometry: Flat, crimped monofilament
Length: 30 mm
Width: 1.8 mm
Thickness: 95 μm
Tensile strength: > 550 MPa
Elastic modulus: 7.5 GPa
Elongation at break: 12% ± 2
Density (typical for polyolefin): ~0.91 g/cm³; Melting point (class reference): ~160–165 °C.

Key Benefits of Stealth Macro Synthetic Fiber

Structural crack control Bridges micro- to macro-cracks, lowering crack width and density and improving residual strength and service life.
Toughness, impact, and fatigue resistance Raises flexural toughness and energy absorption for heavy-duty slabs, pavements, and decks.
Non-corrosive and alkali-resistant Will not rust, is non-magnetic, and resists alkaline pore water in concrete.
Finishability and pumpability Engineered for outstanding finish in power-troweled slabs; compatible with conventional mixing, pumping, and finishing.
Lower embodied carbon vs. steel mesh Using macro synthetic fibers to reduce conventional steel can lower embodied carbon; an industry EPD is available for macro synthetic fibers.
Safety and handling Classified as non-hazardous in SDS for this fiber class; store dry and handle per good practice.

Applications of Stealth Macro Synthetic Fiber

Slab-on-ground and superflat floors
Composite metal decks and elevated slabs
Industrial overlays and pavements
Bridge decks and highway repairs
Mass concrete and temperature-shrinkage control
Precast elements and shotcrete where allowed

How to Use & Recommended Dosage

Standard dosage: 1.8–4.2 kg/m³ depending on design targets and local specs.
Heavy-duty slabs/bridge decks: engineer may select higher within the structural design basis.
Mixing sequence: Batch all ingredients; add the stealth macro synthetic fiber in degradable “toss-in” bags; mix 4–5 minutes or ~70 revolutions for full dispersion. If slump drops, use a water-reducing or HRWR admixture rather than extra water. Finish with conventional equipment.

Packaging & Logistics

Inner packs: 1.0–1.5 kg degradable “toss-in” bags for fast dosing
Outer cartons: 8–12 bags per carton; stretch-wrapped pallets
20′ container: ~10 t; 40′ HQ: ~24 t
Lead time: typically 5–10 days, depending on order mix
Packaging and handling formats mirror best practice for this fiber class used globally.

Why Choose ECOCRETE™

Finish-ready macrofiber geometry for hard-troweled floors and overlays.
Proven application envelope across slabs, decks, pavements, and precast.
Sustainability support with industry EPD references for macro synthetic fibers.
Safety transparency with non-hazardous SDS classification for this fiber class.

FAQs — Stealth Macro Synthetic Fiber

Q1: Can stealth macro synthetic fiber replace wire mesh?

In many crack-control specifications it can reduce or replace secondary steel mesh; final design must follow project codes and engineer approval.

Q2: Will it affect finishing?

This fiber class is engineered for broom and hard-trowel finishes; follow standard finishing timing and workmanship to avoid surface elevation of fibers.

Q3: What dosage should I start with?

A proven starting range is 1.8–4.2 kg/m³; calibrate by trial mix and required residual strengths.

Q4: Any special safety measures?

The SDS classifies this macro synthetic fiber as non-hazardous; handle with normal PPE and store dry.

Q5: Does it help sustainability goals?

Replacing a portion of steel reinforcement with macro synthetic fibers can reduce embodied carbon; see the cradle-to-gate EPD for this category.

Certificates & Test Reports

Every batch is traceable. We provide COA, SDS, TDS, factory ISO9001 and project-specific third-party test reports upon request. Original stamped copies and bilingual versions are available.

Technical Data Sheet (TDS) for AR glass fiber

ECOCRETE™ Stealth Macro Synthetic Fiber