B-1 Trowel Grade Leveler
and Underlayment
www.sakrete.com • 866-SAKRETE 866-725-7383
B-1 Trowel Grade Leveler and Underlayment is a trowel grade, polymer
modified cement-based floor underlayment for interior applications.
FEATURES AND BENEFITS:
•EasytoMix
•EasytoTrowel
•FastSetting
•Self-BondingoverConcrete
•ExcellentSurfaceHardness
•HighTensileandCompressiveStrength
•Featheredges
USES:
InteriorUseFor:
•LevelingandSmoothingFloors
•FillCracksandVoids
•RepairSurfaceDefects
ForUseOver:
•Concrete
•Wood
•CementPlasterCompositionBoard
•CementitiousBackerBoard
•UnderlaymentGradePlywood
•EmbossedVinylTile
ForUseUnder:
•AsphaltTile •CeramicTile
•QuarryTile •MosaicTile
•Linoleum •VinylTile
•WoodFlooring •Carpet
SAFETY:
READandUNDERSTANDtheMaterialSafetyDataSheet(MSDS)beforeusing
thisproduct.WARNING:Wearprotectiveclothingandequipment.SeeHMIS
block.Foremergencyinformation,callCHEMTRECat800-424-9300
or703-527-3887(outsideUSA).KEEPOUTOFREACHOFCHILDREN.
PREPARATION:
Evaluationofthesubstratebyaqualiedengineer,architectorcontractoris
recommended.Cleanareaandremoveallunsoundmaterial,concrete,
grease,oil,paintandanyotherforeignmaterialsthatwillinhibitperformance.
Slickorsealedsurfacesmustbethoroughlyroughened.
Referto:
•ASTMD4259AbradingConcrete
•ICRIGuidelineNo.03732SelectingandSpecifyingConcreteSurface
PreparationforSealers,CoatingsandPolymerOverlays
•ACI201.1RGuideforMakingaConditionSurveyofConcreteinService
Over Concrete
Newconcreteslabsmustbeproperlycuredbeforeinstallationmaybe
attempted.Dependingonatmosphericconditionsandwatercontent,slabsmay
requireuptosixweekscuringtime.Onlywhenacceptablemoisturelevelsand
effectiverestrictionsonmoisturetransmissionareinplacemayoorcoverings
beinstalled.Concreteoorsonorbelowgrademusthaveaneffectivevapor
barrierundertheslab.Testingmayberequiredtodetermineifadequate
moisturebarriersarepresent.
Suspended Wood Floors
Theoormustbestructurallysound.Removematerialsthatpreventbond.
Wherethesub-oorboardsaremorethan4inches(10.16cm)wide,cover
withsheetunderlaymentperprojectrequirementsorinaccordwithTileCouncil
ofAmericarecommendationsforInstallationofInteriorWoodSubooringand
applicablesectionsofANSIAN-3FloorsofPlywood.Allowabledeectionis
l/360maximum.
Vinyl Flooring
Removewaxesandotheroortreatmentmaterials.Floorsshouldbelightly
roughened.PrimewithSAKRETEBonder/Fortier.
MIXING:
Use31/2to4quarts(3.3Lto3.78L)ofwaterper25lb.(11.35kg)bag.For
smallrepairs,mixthedrycompoundwithwatertoasoftputty-likeconsistency.
Dampentheareatoberepairedandll.Forskimcoating,use2quarts(1.9L)
ofSAKRETEBonder/Fortierand2–21/2quarts(1.9–2.4L)per25lb.
(11.35kg)bag.Additionaldryingtimewillbeneededwhenanadditiveisused.
COLOR:
Gray
COVERAGE:
25sq.ft.(2.3m2)at1/8(3.17mm)thicknessper25lb.(11.3kg)bag
PACKAGING:
25lb.(11.3kg)Multi-Plybag-UPC:7-64661-10525-1
SHELF LIFE:
Oneyearfromdateofmanufacture.
DISPOSAL:
Complywithallapplicablelocal,stateandfederalregulationsfordisposal
ofunusableorcontaminatedmaterials.Disposeofpackaging/containers
accordingtolocal,stateandfederalregulations.
RREV 3/12