---
title: "Treadstone® FR25"
url: https://stacklist.com/card/bdb64389-7347-4355-a262-93e234f793d3
source_url: "https://formulatedmaterials.com/product/treadstone-gypsum-underlayment-fr25/"
stack: https://stacklist.com/c/business/stack/df3c1b81-6a52-4856-80ee-17344867a8e8
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), Treadstone Sound Attenuating Mats (technology), HydroPhase APS Advanced Primer & Sealer (technology), gypsum-concrete (concept), fire-resistant-underlayment (concept), sound-attenuation (concept)"
classification: "reference"
content_hash: "sha256:adf4bd7182f5d86c7ad77d8c40a49bee7e7c12dba03ea41b3df7eb2efa5f8a1a"
acp_version: "0.2"
token_counts_approximate: 428
visibility: public
agent_accessible: true
status: "final"
---

# Treadstone® FR25 

Skip to content SKU: 10100 Type: Gypsum Floor Underlayments Tags: floor underlayment , gypsum concrete , gypsum underlayment Treadstone® FR25 Fire-Rated Performance with High Flow Our innovative Treadstone® FR25 gypsum concrete formulation adds the cementitious properties of high flow, high strength and abrasion resistance to the fire-resistive, non-shrinking, fast cure properties of gypsum underlayment. Recommended products Treadstone® Elite Treadstone® TP1 Primer & Sealer Treadstone® Perimeter Isolation Strip Description Recommended Uses Packaging Data Sheets Description This gypsum concrete formula is mixed onsite with locally sourced sand and water to provide a lightweight base that can host a wide variety of flooring. Treadstone® FR25 gypsum underlayment is approved for use over concrete, precast, wood, and Treadstone® Sound Attenuating Mats (thickness limitations apply). Compressive strengths up to 3200psi Fast Setting, light trade traffic in 1 hour, normal traffic 24 hrs. Dense, smooth surface Little to no surface prep, clean, prime, and pour. Provides enhanced sound attenuation (STC & IIC) between floors Reduces Carbon Footprint UL Listed in over 100 designs Installed by a technically trained network of Licensed Dealers Recommended Uses Multi-family Construction Apartments Hotels Condominiums Residential and Single Family Commercial Office Space Renovation of old wood frame or concrete structures Packaging #10100 80lb bags #10100-SS 2960 lbs Supersacks Data Sheets Technical Data Sheet Safety Data Sheet Related products Treadstone® R1 Sound Mat Treadstone® Elite Duo HydroPhase® APS Advanced Primer & Sealer Treadstone® Technical Felt