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Treadstone® FR25
Treadstone FR25 is a fire-rated gypsum concrete underlayment that combines high flow, strength, and abrasion resistance with fast-cure properties for use under various flooring types. It is approved for use over concrete, precast, wood, and sound-attenuating mats, offering compressive strengths up to 3200psi with fast setting times and enhanced sound attenuation.
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Summary
Treadstone FR25 is a fire-rated gypsum concrete underlayment that combines high flow, strength, and abrasion resistance with fast-cure properties for use under various flooring types. It is approved for use over concrete, precast, wood, and sound-attenuating mats, offering compressive strengths up to 3200psi with fast setting times and enhanced sound attenuation.
Tags
gypsum-underlayment · fire-rated · floor-base · construction-material · lightweight-concrete
Key entities
Treadstone FR25 (technology, 0.95) · Treadstone Sound Attenuating Mats (technology, 0.9) · HydroPhase APS Advanced Primer & Sealer (technology, 0.85) · gypsum-concrete (concept, 0.92) · fire-resistant-underlayment (concept, 0.9) · sound-attenuation (concept, 0.88)
Classification
reference · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 21 Jun 2026