Page 379

32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX Technical Data Emer-Seal® CR Sheet 367 Highly chemical resistant, fast cure, durable, one-component joint sealant Uses Sealing joints in: „ Chemical bund areas „ Floor joints in chemical processing plants „ Concrete joints exposed to acid spillage „ Swimming pools „ Sewage processing tanks „ Food, wine and citrus processing areas Advantages „ Ready to use „ Fast rate of cure „ Long life weathering resistance „ Highly resistant to biological attack „ Highly resistant to a wide range of chemicals including strong acids and alkalis „ Highly resistant to pool chlorine, salt water chlorination and ozone treatment „ Potable water AS4020 certification „ Compatible with Durafloor N protection systems for concrete Description Emer-Seal CR is a one part, gun applied non sag joint sealant designed for sealing expansion and construction joints exposed to aggressive chemical environments. Emer-Seal CR utilises unique polymer technology which provides outstanding chemical resistance and cures by reaction with atmospheric moisture to form a tough flexible seal. Once cured, Emer-Seal CR is resistant to attack from most of the aggressive chemicals used in the food, mining and chemical processing industries. Technical Support Parchem offers a comprehensive range of high performance, high quality construction products. In addition, Parchem offers a technical support package to specifiers, end-users and contractors, as well as on-site technical assistance. Design Criteria Emer-Seal CR may be applied to joints between 8 mm and 50 mm wide. To minimise stresses imposed on the joint sealant, all moving joints should be designed to an optimum width to depth ratio of 2:1. This ratio is subject to the following overriding minimum sealant depths: ‡ 8 mm minimum sealant depth on non-porous surfaces ‡ 12 mm minimum sealant depth on porous surfaces such as concrete and masonry ‡ 20 mm minimum sealant depth in applications where the sealant is subject to a hydrostatic pressure or traffic Care must be taken to ensure joint movement does not exceed the sealant’s movement accommodation capability. If uncertain about any of the design criteria, contact your local Parchem branch for further advice. Properties Data quoted is typical for this product but does not constitute a specification. Form: Non slump, thixotropic paste Hardness: - Shore A: 32 ± 5 Tensile modulus: 100% elongation: 0.4 MPa @ 100% 100% Ultimate elongation: >1.0 MPa @ >400% Colours: Concrete Grey, Pool Blue Other colours to batch order Physical or chemical change: Chemical cure, moisture activated Application temperature: Minimum 5°C Service temperature: Minus 50°C - 150°C Tooling time: 20 minutes @ 25°C 65% RH Cure rate: Approx 3 mm in 24 hours, then 1 mm / day @ 25°C / 65%RH Movement accommodation factor: ± 25% butt joints (50% total) Chemical resistance - continuous immersion - (worst case testing - 6 months exposure) * Important: Ensure that Emer-Seal CR is fully cured before it is subjected to chemical exposure. (Note: Service life for intermittent exposure will be significantly longer than indicated below) Acetic Acid 10% Resistant, > 1 month Acetic Acid 75% Resistant, > 1 month Acetic Acid Conc. Resistant, > 1 month (Glacial) Automotive Brake Fluid Resistant, no attack Chlorine (Sodium Resistant, no attack Hypochlorite) 2% Chlorine (Sodium Hypochlorite) 10% Resistant, no attack Citric Acid 10% Resistant, no attack Diesel Fuel 100% Intermittent spillage OK Detergent (GN8) 2% Resistant, no attack June 2010


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
To see the actual publication please follow the link above