Mc-dur 1280 Sa

Product Details

MC-DUR 1280 SAEpoxy adhesive for Joint Sealing StripsFor Expansion Joints of the Structure.Product Properties• Two-component Epoxy Resin Based Adhesive• High Bond Strength• Rapid strength development even at low temperature (≥ +80 C)• High Mechanical strength• Tested for strengthening of component using Nafuflex DB Strips.• Confirms to ASTM C 881 Type I, IV grade 3, Class 3 and AASHTO M-235 SpecificationsAreas of Application• Adhesive for high-tensile Strengthening elements with Joint Sealing Strips for expansion joints made of reinforced concrete, brickwork, steel and wood.• Industrial, traffic, structural and housing construction.Application NotesSurface preparationBefore application of MC-DUR 1280 SA all substrates must be verified for load-bearing capacity and prepared by means of a suitable surface blasting method. The substrates must be dry (residual moisture ≤ 6%, CM-method), free of cement laitance, dust, oil and other contaminants. A minimum pull-off strength of 1.5N/mm2 is required. The bonding surface of the substrate must be protected from increasing backwards moisture.Before application of Nafuflex DB strips the evenness of the concrete surface must be checked. The leveling mortar MC-DUR Range Epoxy mortar can be used for leveling (roughness < 1.5 mm) according to the application advice indicated in the technical data sheet.The iron and steel surface must be cleaned in accordance with standards purity SA 3 according to DIN EN ISO 12944-4:1998-07. It must be dry and free from any rust film and other contaminations. Quartz-free grit blasting is suitable method for preparation and cleaning.Mixing and ApplicationMC-DUR 1280 SA Consists of two components, supplied in prepacked quantities. First, the base component is mixed thoroughly and then the hardener is added. Both components are mixed together thoroughly and homogeneously for at least 3 minutes. Slowly rotating mixers with paddle (max.300 rpm) are suitable for mixing. Care should be taken to keep entrainment of air to a minimum while mixing.After mixing the resin must be refilled into a clean container and mixed again.MC-DUR 1280 SA is applied onto the substrate, using a trowel, a scraper or similar tool or By means of standard spray guns, as used for joint sealants.General InformationHigh temperatures shorten while low temperatures extended all indicated times and intervals. As a rule of thumb a change in temperature of 100C either halves or doubles the indicated pot life.Furthermore, please note that higher temperatures reduce both the viscosity and the seting properties of MC-DUR 1280 SA. Varnish runs must be avoided. MC-DUR 1280 SA should be stored inside at cool temperatures.Safety AdvicePlease Take notice of the Safety information and advice given on the Packaging labels and safety data Sheets.