Construction

1 ConstructionSikadur 21, Lo-Mod LVLow-modulus, low-viscosity, epoxy resin binderDescriptionSikadur 21, Lo-Mod LV, is a 2-component, 100% solids, moisture-tolerant, epoxy resin binder. It conforms tothe current ASTM C-881 and AASHTO M-235 to UseUse as a binder for epoxy mortar for patching and to moisture both before and after easy mix ratio A:B = 1:1 by strength viscosity gives you easy handling, high-yield epoxy is data SheetEdition no. 321 Sikadur 21, Lo-Mod LVTypical data ( material and curing conditions @ 73 F (23 C) and 50% )Shelf Life2 years in original, unopened ConditionsStore dry at 40 -95 F (4 -35 C). Condition material to 65 -85 F (18 -29 C)before , RatioComponent A :Component B = 1:1 by 1,000 LifeApproximately 25 minutes. (200 gram mass)Tack-Free TimeApproximately 3 hours.

2 At 90 F (32 C) - Approximately 2 hoursTraffic Time4-5 Properties (ASTM D-638) MORTAR 1:6 NEAT14 dayTensile Strength 1,300 psi ( MPa)5,800 psi ( MPa)Elongation at Break % %Modulus of Elasticity x 105 psi (4,551 MPa) x 105 psi (986 MPa)Flexural Properties (ASTM D-790) MORTAR 1:6 NEAT14 dayFlexural Strength (Modulus of Rupture)2,300 psi ( MPa)9,600 psi ( MPa) Tangent Modulus of Elasticity in Bending x 106 psi (8,274 MPa) x 105 psi (2,055 MPa)Shear Strength (ASTM D-732) MORTAR 1:6 NEAT14 dayShear Strength 2,000 psi ( MPa)5,670 psi (39 MPa)Water Absorption (ASTM D-570)NEAT7 day(24 hr immersion) Deflection Temperature (ASTM D-648) MORTAR 1:614 dayFiber stress loading = 66 psi ( MPa) 111 F (44 C)Bond Strength (ASTM C-882): Hardened concrete to hardened concrete2 day(dry cure)Bond Strength1,100 psi ( MPa)14 day(moist cure)Bond Strength1,600 psi (11 MPa)Abrasion (Taber Abrader)MORTAR 1:614 dayWeight loss, 1,000 cycles (H-22 wheel; 1,000 gm.)

3 Weight) gmCompressive Properties (ASTM C-579) Compressive Strength, psi (MPa) MORTAR 1:640 F*(4 C)73 F*(23 C)90 F* (32 C)73 F (23 C) NEAT4 hour - -500 ( ) -8 hour -400 ( )2,200 ( ) -16 hour20 ( )2,100 ( )4,600 ( )116 ( )1 day40 ( )2,600 ( )4,700 ( )1,900 ( )3 day1,400 ( )4,900 ( )5,500 ( )6,700 ( )7 day3,500 ( )5,400 ( )6,200 ( )9,000 ( )14 day4,500 ( )6,000 ( )6,200 ( )9,100 ( )28 day4,600 ( )6,100 ( )6,200 ( )9,200 ( )Compressive ModulusMORTARNEAT 28 x 105 psi (5,240 MPa) x 105 psi (1,779 MPa)* material cured and tested at the temperatures indicated.(ASTM D-695)ConstructionKEEP CONTAINER TIGHTLY CLOSEDKEEP OUT OF REACH OF CHILDRENNOT FOR INTERNAL CONSUMPTIONFOR INDUSTRIAL USE ONLYCONSULT material safety data sheet FOR MORE INFORMATIONSika warrants this product for one year from date of installation to be free from manufacturing defects and to meet thetechnical properties on the current technical data sheet if used as directed within shelf life.

4 User determines suitability ofproduct for intended use and assumes all risks. Buyer s sole remedy shall be limited to the purchase price or replacementof product exclusive of labor or cost of OTHER WARRANTIES EXPRESS OR IMPLIED SHALL APPLY INCLUDING ANY WARRANTY OF MERCHANTABILITYOR FITNESS FOR A PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FORSPECIAL OR CONSEQUENTIAL our website at NATIONWIDER egional Information and Sales Centers. For the location of your nearest Sika sales office, contact your regional CorporationSika Canada Mexicana de Polito Avenue601 Delmar AvenueCarretera Libre Celaya Km. , NJ 07071 Pointe ClaireCorregidora, QueretaroPhone: 800-933-7452 Quebec H9R 76920 136 Fax: 201-933-6225 Phone: 514-697-2610 Phone: 52 42 25 0122 Fax: 514-694-2792 Fax: 52 42 25 0537 Sika and Sikadur are registeredtrademarks.

5 Made in USA. Printed in Coat - approximately 200-250 sq. Binder - 1 gal. of mixed Sikadur 21, Lo-Mod LV with the addition of 6 parts by loose volume ofan oven-dried sand, yields approximately 924 cu. gal. to UseSurface PreparationSurface must be clean and sound. It may be dry or damp, but free of standing water. Remove dust,laitance, grease, curing compounds, impregnations, waxes and any other Work:Concrete - Should be cleaned and prepared to achieve a laitance and contaminant free, open texturedsurface by blastcleaning or equivalent mechanical - Should be cleaned and prepared thoroughly by blast cleaning to white metal equal parts by volume of Component A and B into clean pail. Mix thoroughly for 3 min. withSika paddle on low-speed (400-600 rpm) drill until uniformly blended. Mix only that quantity that can beused within pot prepare epoxy mortar - Slowly add 6 parts by loose volume of oven-dried sand aggregate to 1 part ofmixed Sikadur 21, Lo-Mod LV.

6 Mix until uniform in Mortar - Prime prepared surface with mixed Sikadur 21, Lo-Mod LV. Apply epoxy mortar bytrowel or vibrating screed while primer is still tacky. Finish with finishing Concrete - Consult Technical Service for placement and finishing of epoxy substrate and ambient temperature 40 F (4 C).nPorous substrates must be tested for moisture-vapor transmission prior to application. (Ref. ASTM D-4263).nMinimum age of concrete before application is 21-28 days depending upon curing and drying not apply to exterior slab on application thickness on exterior substrates exposed to thermal change is 1/2 in (13 mm).nDo not dilute. Addition of solvents will prevent proper oven-dried aggregates is a vapor barrier after A - Irritant; Sensitizer - Contains epoxy resin. Can cause skin sensitization after prolonged orrepeated contact.

7 Skin and eye irritant. High concentrations of vapor may cause respiratory irritation. Avoidskin contact. Use only with adequate ventilation. Use of safety goggles and chemical resistant gloves isrecommended. In case of exceedance of PELs, use an appropriate, properly fitted NIOSH approvedrespirator. Remove contaminated clothing. Consult MSDS for more detailed B - Corrosive; Sensitizer - Contains amines. Contact with eyes or skin may causesevere burns. Skin and eye irritant. High concentrations of vapor may cause respiratory irritation. Avoidskin contact. Use only with adequate ventilation. Use of safety goggles and chemical-resistant glovesis recommended. In case of exceedance of PELs, use an appropriate, properly fitted NIOSH approvedrespirator. Remove contaminated clothing. Consult MSDS for more detailed AidEyes: Hold eyelids apart and flush thoroughly with water for 15 minutes.

8 Skin: Remove contaminatedclothing. Wash skin thoroughly for 15 minutes with soap and water. Inhalation: Remove person tofresh air. Ingestion: Do not induce vomiting. In all cases, contact a physician immediately ifsymptoms UpVentilate area. Confine spill. Collect with absorbent material and transfer into suitable container. Avoidrelease into the environment. Dispose of in accordance with current, applicable local, state and federalregulations. Uncured material can be removed with approved solvent. Cured material can only beremoved mechanically.