AdfilStrux Macro Synthetic Fibers

AdfilStrux, GCP’s high-performing synthetic structural macrofibers enable customers to build smarter and faster without compromising performance. AdfilStruxfibers provide high-strength reinforcement for resisting and controlling temperature and shrinkage cracking in concrete, and substantially speed up construction time, by eliminating the need to install welded wire fabric (WWF) or light rebar at the worksite. 

Prior to July 2025, AdfilStrux Macro Synthetic Fibers was formerly known as STRUX.

Compared to WWF, applications using AdfilStruxfibers can be completed faster and exhibit long-term durability at lower installed costs – with estimated savings of 20%-30%. Applications include concrete floors, elevated composite metal decks, soil-supported slabs, pavements, tunnel liners and thin-walled precast.

GCP offers three AdfilStruxfibers to meet specific project requirements:
STRUX 90/40 and STRUX 85/50 macrofibers are intended for projects requiring dosages in the range 3.0-7.0 lb/yd3, such as elevated composite metal decks, slab on grade, shotcrete and precast applications. STRUX BT50 fibers are intended for projects requiring higher dosages of 7.0-15.0 lb/yd3, such as heavy industrial floors and shotcrete. These fibers are manufactured from 100% virgin polypropylene/polyethylene and are a superior alternative to WWF or light rebar, as secondary reinforcement for crack protection and control.

GCP introduced its new brand for synthetic microfibers – AdfilSinta Micro Synthetic Fibers. AdfilSinta microfibers are appropriate for applications, where decreased plastic shrinkage cracking and improved durability are desired. Alkali-resistant, non-absorptive and completely non-corrosive, AdfilSinta synthetic microfibers provide greater impact, abrasion and fire spalling resistance. GCP offers three categories of SINTA fibers to meet specific project requirement: AdfilSinta F fibrillated microfibers, AdfilSinta M monofilament microfibers and the innovative AdfilSinta FDS fluid dispensing microfiber system.

AdfilSinta was rebranded in July 2025, formerly known as SINTA.