ASTM_D_1546_-_96_2003.pdf

Designation:D 1546 96(Reapproved 2003)Standard Practice forTesting the Performance of Clear Floor Sealers1This standard is issued under the fixed designation D 1546;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the testing of clear floor sealers,intended for use on interior wood floors.It covers the appear-ance of the sealed wood and of treated worn spots,theresistance of the sealed wood to ink stains,and the appearanceof the complete system after the sealer has been coated withvarnish,and with solvent-and waterborne waxes.NOTE1The resistance of the sealer to other reagents may bedetermined using appropriate parts of the procedure,when agreed uponbetween the purchaser and the seller.1.2 The values stated in inch-pound units are standard.Thevalues given in parentheses are for information only.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1U.S.Federal Specifications:2P-W-155 Wax,Emulsion TypeP-W-158 Wax,Solvent TypeTT-I-563 Ink,Blue-BlackTT-V-71H Varnish,Interior,Floor and Trim3.Significance and Use3.1 Several coating systems are used to finish or refinishwood floors of the interior of commercial and residentialbuildings.One system that has commonly been used by homeowners and floor refinishers consists of applying two coats ofa sealer,frequently of the oleoresinous type,to the woodfollowed by one or two coats of a durable floor wax.Theadvantages of this system are the ease of application and,compared to urethane coatings,the facility of refinishing bytouching up only the worn areas.This practice is used toestablish whether a floor sealer will perform adequately.4.Materials4.1 Maple PanelsFirst-grade maple flooring 212by 12 in.(65 by 300 mm).Other types and sizes of wood may be usedwhen agreed upon between the purchaser and the seller.4.2 Sand PaperNo.00 garnet paper.4.3 Cheesecloth.4.4 Tack Cloth.4.5 Ink,Blue-BlackConforming to Federal SpecificationTT-I-563.4.6 Blotting Paper.4.7 Steel WoolNo.0 and 00.4.8 VarnishConforming to Federal Specification TT-V-71H.4.9 WaxesConforming to Federal Specifications P-W-155and-158.5.Panel Preparation5.1 Sand five maple panels with the No.00 garnet paperuntil the surface is even and smooth.Remove sanding dustwith a clean tack cloth.5.2 To the complete test surface of two of the panels andhalf of each of the three remaining panels,apply a liberal coatof sealer using a pad of clean cheesecloth,noting the ease ofapplication.Allow the sealer to set 15 min for absorption intothe wood.Wipe off sealer using a fresh pad of cheesecloth,evaluating whether the excess can be removed readily andcleanly from the surface.Allow the panels to dry 24 h at atemperature between 70 and 90F(21 to 32C)and a relativehumidity of 50 6 10%.5.3 Apply a second coat of sealer in accordance with themanufacturers instructions as to sanding and wiping.Allowthe second coat to dry for 24 h before evaluating or finishing.NOTE2Other methods of application and panel preparation may beused when agreed upon between the purchaser and the seller.6.Procedure6.1 Appearance of Sealed WoodExamine the partially-coated panels,prepared as specified in Section 5,for thepresence of surface film.Determine whether the sealed areas ofthe panels have a soft,uniform sheen,and whether the grain ofthe wood is clouded,obscured or raised,by comparing with theunsealed halves of the three panels.1This practice is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.42 on Architectural Coatings.Current edition approved July 10,2003.Published July 2003.Originallyapproved in 1958.Last previous edition approved in 1996 as D 1546 96.2Available from Standardization Documents Order Desk,DODSSP,Bldg.4,Section D,700 Robbins Ave.,Philadelphia,PA 19111-50981Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.6.2 Treatment of Worn SpotsOn one completely sealedpanel simulate three worn areas by rubbing the surface withNo.0 steel wool.Over these areas apply with cheesecloth,athin coat of sealer and immediately burnish with No.00 steelwool.When dry,examine the touched-up areas to determinewhether they blend with the surrounding areas of the panelwithout showing signs of lap marks.6.3 Resistance to Ink StainPlace several drops of blue-black ink at a few locations on the surface of one of thecompletely sealed panels and allow to remain for 3 min.Absorb the ink with th