The URL can be used to link to this page

Home My WebLink Aboutsikaflex_-1aProduct Data Sheet Sikaflex®-1A February 2024, Version 01.06 020511010000000008 PRODUCT DATA SHEET Sikaflex®-1A ELASTOMERIC JOINT SEALANT / ADHESIVE PRODUCT DESCRIPTION Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. Sikaflex-1a can be used in green and damp concrete applications. Meets Federal Specification TT-S-00230C, Type II, Class A. Meets ASTM C920, Type S, Grade NS, Class 35, Use T, NT, O, M, A, I. Canadian standard CAN/CGSB 19.13-M87. USES Designed for all types of joints where maximum depth of sealant will not exceed 1/2 in. ▪ Excellent for small joints and fillets, windows, door frames, reglets, flashing, common roofing detail applictions, and many construction adhesive applications. ▪ Suitable for vertical and horizontal joints; readily placeable at 40°F ▪ Has many applications as an elastic adhesive between materials with dissimilar coefficients of expansion. ▪ Submerged conditions, such as canal and reservoir joints. ▪ CHARACTERISTICS / ADVANTAGES Eliminates time, effort, and equipment for mixing, filling cartridges, pre-heating or thawing, and cleaning of equipment. ▪ Fast tack-free and final cure times.▪ High elasticity - cures to a tough, durable, flexible consistency with exceptional cut and tear -resistance. ▪ Stress relaxation.▪ Excellent adhesion - bonds to most construction materials without a primer. ▪ Excellent resistance to aging, weathering.▪ Proven in tough climates around the world.▪ Can be applied to green concrete 24 hours after pour▪ Can be applied to damp concrete 1 hour after getting wet ▪ Non-staining.▪ Jet fuel resistant.▪ Certified to NSF/ANSI/CAN 61 for potable water (meets applicable requirements of NSF/ANSI 600). ▪ Urethane-based; suggested by EPA as a caulk and crack sealant for radon reduction. ▪ Paintable with water-, oil- and rubber-based paints.▪ Capable of ±35% joint movement.▪ APPROVALS / STANDARDS ASTM C920, Type S, Grade NS, Class 35, Use T, NT, O, M, A, I ▪ SWRI validated acc. to ASTM C719 (No. 0123-S0128)▪ Federal specification TT-S-00230 C Type II, Class A▪ Canadian Standard CAN/CGSB 19.13-M87▪ Certified to NSF/ANSI/CAN 61 for potable water (meets applicable requirements of NSF/ANSI 600). ▪ 1 / 4 PRODUCT INFORMATION Packaging 10.1 fl. oz. (300 ml) cartridge, 20 fl. oz. (600 ml) sausage, 4.5 gal (17 L) in a 5 gal pail, 52 gal (197 L) in a 55 gal drum Shelf Life Cartridge and Sausage: 12 months in original, unopened packaging. Pail and Drum: 6 months in original, unopened packaging. Storage Conditions Store at 40°-95°F (4°-35°C). Color White, colonial white, aluminum gray, limestone, black, dark bronze, capitol tan, stone and medium bronze. Special architectural colors on request. TECHNICAL INFORMATION Shore A Hardness (21 day) 45±5 (ASTM C 661) Tensile stress at specified elongation 21 day Tensile Stress 175 psi (1.21 MPa) Stress @ 100%85 psi (0,59 N/mm2) (ASTM D 412) Elongation at Break 550 %(ASTM D-412) Movement Capability ±35 %(ASTM C-719) Adhesion in peel Substrate Peel Strength Adhesion loss Concrete 20 lbs 0 % Aluminium 20 lbs 0 % Glass 20 lbs 0 % (ASTM C-794) (TT-S-00230C) Tear Strength 55 lb./in.(ASTM D-624) Service Temperature −40 °F to +170 °F Chemical Resistance Good resistance to water, diluted acids, and diluted alkalines. Consult Technical Service for specific data. Resistance to Weathering Excellent APPLICATION INFORMATION 10.1 oz Cartridge: Yield in Linear Feet Width/Depth 1/4"3/8"1/2" 1/4"24.3 3/8"16.2 10.8 1/2"12.1 8.1 6.1 3/4"8.1 5.4 4.0 1"3.0 1.25"2.4 1.5"2.0 20 oz Sausage: Yield in Linear Feet Width/Depth 1/4"3/8"1/2" 1/4"48.1 3/8"32.1 21.4 1/2"24.1 16.0 12.0 3/4"16.0 10.7 8.0 1"6.0 1.25"4.8 1.5"4.0 Coverage Product Data Sheet Sikaflex®-1A February 2024, Version 01.06 020511010000000008 2 / 4 1 gallon: Yield in Linear Feet Width/Depth 1/4"3/8"1/2" 1/4"307.9 3/8"205.3 136.8 1/2"153.9 102.6 77.0 3/4"102.6 68.4 51.3 1"38.5 1.25"30.8 1.5"25.7 Cure Time 4 to 7 days (73 °F / 50 % r.h.) Curing Rate up to 1/8" after 24 hours (73 °F / 50 % r.h.) Tack Free Time 3 to 6 hours (73 °F / 50 % r.h.) BASIS OF PRODUCT DATA Results may differ based upon statistical variations depending upon mixing methods and equipment, temperature, application methods, test methods, actual site conditions and curing conditions. LIMITATIONS Allow 1 week cure at standard conditions when using Sikaflex-1a in total water immersion situations. ▪ When overcoating with water, oil and rubber based paints, compatibility and adhesion testing is essential. ▪ Sealant should be allowed to cure for 7 days prior to overcoating ▪ Avoid exposure to high levels of chlorine. (Maximum continuous level is 5 ppm of chlorine.) ▪ Maximum depth of sealant must not exceed 1/2 in.; minimum depth is 1/4 in. ▪ Maximum expansion and contraction should not exceed 35% of average joint width. ▪ Do not cure in the presence of curing silicone sealants.▪ Avoid contact with alcohol and other solvent cleaners during cure. ▪ Do not apply when moisture-vapor-transmission condition exists from the substrate as this can cause bubbling within the sealant. ▪ Use opened units the same day.▪ When applying sealant, avoid air-entrapment.▪ Since system is moisture-cured, permit sufficient exposure to air. ▪ White color tends to yellow slightly when exposed to ultraviolet rays. ▪ Light colors can yellow if exposed to direct gas fired heating element. ▪ The ultimate performance of Sikaflex-1a depends on good joint design and proper application with joint surfaces properly prepared. ▪ The depth of sealant in horizontal joints subject to traffic is 1/2 in. ▪ Do not tool with detergent or soap solutions.▪ Do not use in contact with bituminous/asphaltic materials. ▪ In green concrete applications sealing joints in poor or ▪ low strength concrete 24 hours after pour may impact ability of sealant to gain proper adhesion. In damp concrete applications all standing water and excess water must be eliminated prior to the 60 minute waiting time. ▪ ENVIRONMENTAL, HEALTH AND SAFETY For further information and advice regarding transportation, handling, storage and disposal of chemical products, user should refer to the actual Safety Data Sheets containing physical, environmental, toxicological and other safety related data. User must read the current actual Safety Data Sheets before using any products. In case of an emergency, call CHEMTREC at 1-800-424-9300, International 703-527-3887. APPLICATION INSTRUCTIONS SUBSTRATE PREPARATION Product Conditioning: Condition material to 65°-75°F before using. Clean all surfaces. Joint walls must be sound, clean, frost-free, and free of oil and grease. Curing compound residues and any other foreign matter must be thoroughly removed. A roughened surface will also enhance bond. Install bond breaker tape or backer rod to prevent bond at base of joint. Priming is not usually necessary. Most substrates only require priming if testing indicates a need or where sealant will be subjected to water immersion after cure. For green concrete applications control joints must be cut 8 hours prior to sealant installation and in expansion joint forms must be removed 4 hours prior to sealant installation. For wet concrete applications all excess or standing water must be displaced and concrete must then dry for a minimum of 60 min prior to sealant installation. Consult Sikaflex Primer Technical Data Sheet or Technical Service for additional information on priming. Product Data Sheet Sikaflex®-1A February 2024, Version 01.06 020511010000000008 3 / 4 APPLICATION METHOD / TOOLS Recommended application temperatures: 40°-100°F. For cold weather application, condition units at approximately 70°F; remove prior to using. For best performance, Sikaflex-1a should be gunned into joint when joint slot is at mid-point of its designed expansion and contraction. Place nozzle of gun into bottom of the joint and fill entire joint. Keep the nozzle in the sealant, continue on with a steady flow of sealant preceding the nozzle to avoid air entrapment. Avoid overlapping of sealant to eliminate entrapment of air. Sikaflex-1a can be applied on green concrete after the concrete has cured for a minimum of 24 hours at 75°F.Control joints must be cut and open for min of 8 hours prior to application. Expansion joints must have forms removed a minimum of 4 hours prior to application. For damp concrete applications Sikaflex-1a can be applied 60 minutes after any and all water has been displaced. Tooling & Finishing Tool sealant to ensure full contact with joint walls and remove air entrapment. Joint dimension should allow for 1/4 inch minimum and 1/2 inch maximum thickness for sealant. Proper design is 2:1 width to depth ratio, For use in horizontal joints in traffic areas, the absolute minimum depth of the sealant is 1/2 in. and closed cell backer rod is recommended. Removal Use personal protective equipment (chemical resistant gloves/goggles/clothing). Without direct contact, remove spilled or excess product and placed in suitable sealed container. Dispose of excess product and container in accordance with applicable environmental regulations. Over Painting Allow 1-week cure at standard conditions when using Sikaflex-1a in total water immersion situations and prior to painting. CLEANING OF TOOLS Clean all tools and application equipment with Sika® Remover-208 immediately after use. Hardened material can only be removed mechanically. OTHER RESTRICTIONS See Legal Disclaimer. LEGAL DISCLAIMER • KEEP CONTAINER TIGHTLY CLOSED • KEEP OUT OF REACH OF CHILDREN • NOT FOR INTERNAL CONSUMPTION • FOR INDUSTRIAL USE ONLY • FOR PROFESSIONAL USE ONLY Prior to each use of any product of Sika Corporation, its subsidiaries or affiliates (“SIKA”), the user must always read and follow the warnings and instructions on the product’s most current product label, Product Data Sheet and Safety Data Sheet which are available at usa.sika.com or by calling SIKA’s Technical Service Department at 1-800-933-7452. Nothing contained in any SIKA literature or materials relieves the user of the obligation to read and follow the warnings and instructions for each SIKA product as set forth in the current product label, Product Data Sheet and Safety Data Sheet prior to use of the SIKA product. SIKA warrants this product for one year from date of installation to be free from manufacturing defects and to meet the technical properties on the current Product Data Sheet if used as directed within the product’s shelf life. User determines suitability of product for intended use and assumes all risks. User’s and/or buyer’s sole remedy shall be limited to the purchase price or replacement of this product exclusive of any labor costs. NO OTHER WARRANTIES EXPRESS OR IMPLIED SHALL APPLY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SIKA SHALL NOT BE LIABLE UNDER ANY LEGAL THEORY FOR SPECIAL OR CONSEQUENTIAL DAMAGES. SIKA SHALL NOT BE RESPONSIBLE FOR THE USE OF THIS PRODUCT IN A MANNER TO INFRINGE ON ANY PATENT OR ANY OTHER INTELLECTUAL PROPERTY RIGHTS HELD BY OTHERS. Sale of SIKA products are subject to the Terms and Conditions of Sale which are available at https://usa.sika.com/en/group/SikaCorp/termsandconditions.html or by calling 1-800-933-7452. Sika Corporation 201 Polito Avenue Lyndhurst, NJ 07071 Phone: +1-800-933-7452 Fax: +1-201-933-6225 usa.sika.com Sikaflex-1A-en-US-(02-2024)-1-6.pdf Product Data Sheet Sikaflex®-1A February 2024, Version 01.06 020511010000000008 4 / 4