CRACKBOND® EJ-SL DESCRIPTION Crackbond EJ-SL is a one-component, moisture curing, professional grade, elastomeric, polyether expansion joint sealant. It has excellent bond strength to all porous and non-porous substrates without the use of a primer. Crackbond EJ-SL is self-leveling for use on horizontal surfaces. PROPERTIES Skin Formation: 50 minutes @ 75°F (24°C) & 50% relative humidity Tack-free Time: 60 minutes Cure Time: 24-48 hours, ¼” diameter bead @ 75°F (24°C) & 50% humidity COLORS Concrete Gray GENERAL USES and APPLICATIONS • Expansion joints with anticipated movement up to 25% • Joint sealing traffic or non-traffic horizontal applications • Sealing moving cracks ADVANTAGES and FEATURES Excellent weathering and UV stability No bubble formation or foaming during installation on damp surfaces No offensive odor Installation with no tooling Excellent primerless adhesion to most substrates No Isocyanates, solvents, halogens or acids Service temperature range -40°F to 200°F (-40°C to 93°C) Movement capability: +/- 25% of joint width Can be painted with water based paints and many other systems (to be tested) • • • • • • • • • AVAILABILITY ATC Crackbond products are available through select distributors who can provide you with all your construction needs. Please contact ATC at (800) 8921880 for a distributor near you. MEETS • • • ASTM C920, Type S, Grade P, Class 25,T, NT, M, A, G, O Federal Specification TT-S-00230C, Type II, Class A Do not use as a glazing sealant Cartridge Cartridge 29 oz. (358 ml) Part #’s A29-EJ-SL WEBSITE www.ATCepoxy.com SHELF LIFE / STORAGE 12 month shelf life when stored in unopened containers in dry conditions. For best long term shelf life store between 41°Fand 77°F (5° to 25°C) Technical Data Properties Sag Skin Formation Tack Free Time Cure Time (1/4” diameter bead) Tensile Yield psi (MPa) Hardness (Shore A) Elongation Movement Capability Stain and Color Change Artificial Weathering Volatile Organic Compounds ( VOC ) ASTM C639 D412 D2240 D412 C719 C510 C793 75°F (24°C) Flowable Type I@120°F (49°C) 50 min @ 50% RH 60 min @ 50% RH 24-48 Hrs @ 50%RH 150 (1,0) 30 +/-5 400 % +/- 25% Passes No Cracking <34 g / l Manufactured In The U.S.A. Adhesives Technology Corp. 450 East Copans Road ■ Pompano Beach, FL 33064 ■ (800) 892-1880 ■ Fax (800) 362-3320 ■ www.atcepoxy.com Revision: 1.1 Date: 03-25-2014 Page 1 of 2 CRACKBOND EJ-SL CONDITION PRODUCT Best results are obtained if the product is conditioned 40ºF to 85ºF (4 to 29°C). APPLICATION TEMPERATURE Substrate and ambient air temperatures ranging from 40ºF to 90ºF (4 to 32°C). IN-SERVICE TEMPERATURE RANGE Crackbond EJ-SL will perform in temperature from -40ºF to 200ºF (-40 to 93°C). COVERAGE See MPII, Manufacturer’s Printed Installation Instructions for Coverage Estimate Chart CHEMICAL RESISTANCE Prior to application, test all chemicals and cleaning agents under exposure conditions. Crackbond EJ-SL has good chemical resistance to water, aliphatic solvents, mineral oils, grease, dilute inorganic acids and alkalis. Avoid aromatic solvents, concentrated acids, and chlorinated hydrocarbons. LIMITATIONS & WARNINGS Should not be used as a structural sealant May be painted, however compatibility tests are recommended Should not be used as a glazing sealant Should not be used for continuous immersion applications Do not apply to freshly treated wood (treated wood must age 6 months) Low temperatures and low humidity will extend cure time Not recommended for adhesion to PE, PP, PTFE, silicones and bituminous substrates. We recommend a preliminary compatibility test when working with different substrates. New concrete must be cured for 28 days prior to installation of the sealant SPECIFICATION Flexible joint sealant material shall be a single component, moisture cure, polyether elastomeric material. The joint material must have and elongation of 400% (ASTM D412), movement capability or +/- 25% (ASTM C719), a tensile yield of 150 psi (1,0 MPa) (ASTM D412), and pass artificial weather test with no cracking (ASTM C793). Joint material must not contain isocyanates, solvents, halogens or acids. Sealant shall be Crackbond EJ-SL from Adhesives Technology Corp., Pompano Beach, Florida. MPII--MANUFACTURER’S PRINTED INSTALLATION INSTRUCTIONS For complete Installation Instructions for Crackbond EJ-SL refer to our Website, www.atcepoxy.com or call ATC for more information at 1-800-892-1880. JOINT PREPARATION Expansion joint must be clean, dry, free of dust and grease, and free of chipping paint. All dust must be removed using pressurized moisture-free air or vacuum. Minimum width: 1/4" (0.6cm), Maximum width: 1 3/16" (3 cm), Minimum depth: 1/5" (0.5cm) Joint should be twice as wide as it is deep (2 x depth = width). Do NOT bond joint material to the bottom of the joint. Use backer rod to control depth and maximize elongation. CRACK REPAIR PREPARATION Crack must be clean, dry, free of dust and grease, and free of chipping paint. For best results, route crack with a dry diamond blade. All dust must be removed using pressurized moisture-free air or vacuum. Minimum width: 1/4" (0.6cm), Maximum width: 1 3/16" (3 cm), Minimum depth: 1/5" (0.5cm). Do NOT bond joint material to the bottom of the crack. Use sand at the bottom of the crack to control depth and maximize elongation. CLEAN UP Clean tools and equipment with solvent such as isopropyl alcohol (IPA). Do not allow product to harden on equipment. SAFETY Please refer to the MSDS for Crackbond EJ-SL published on our Website, www.atcepoxy.com WARRANTY Adhesives Technology Corporation (ATC) warrants to the Buyer that this product is in good quality and conforms to the manufacturer’s specifications in force on the date of manufacture and when used in accordance with the Installation Instructions and when stored as directed in the technical literature. Manufacturer cannot warrant or guarantee any particular method of use, performance or application under any particular condition and Buyer is responsible for determining the suitability of intended purpose and assumes all risks therein. ATC shall not be liable for any injury, loss, cost of labor or consequential damages either directly, indirectly or incidentally, arising out of the use or misuse of any product sold by ATC or another distributor. If the product is proven to be in nonconformance, the Buyers sole remedy shall be a refund of the purchase price or replacement of product. 450 East Copans Road ■ Pompano Beach, FL 33064 ■ (800) 892-1880 ■ Fax (800) 362-3320 ■ www.atcepoxy.com Revision: 1.1 Date: 03-25-2014 Page 2 of 2
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