Maxurethane is a polyurethane protection for concrete and steel surfaces. It is available as a one-component protective coating based on transparent, synthetic, air-drying polyurethane resins, which creates a glossy finish. Suitable for indoor applications. It is characterized by high resistance to abrasion and chemical attack.

Technical data

• CE marking in accordance with EN 1504-2
• clear, slightly yellow liquid
• shiny and transparent film when dry
• specific gravity (at 20 C) 1.05 0.1 g / cm ³
• flash point above 80 ° C
• ambient temperature at the application of 10-30 C
• relative humidity at application 30-85%
• the relative temperature of the substrate when applying above 10 ° C
• Relative humidity of the substrate when applied below 5%
• time lapse between the application of the individual layers (at 20 C) 2-4 h
• Total drying time before putting into service on foot (at 20 C, 50% RH): 1 day
• total drying time before putting into service for heavy machinery, before permanent immersion in water or flood test (at 20 C, 50% relative humidity): 3 days
• water vapor permeability (according to EN ISO 7783-1 / -2): class I - material permeable to water vapor; SD classification below 5 m
• water permeability and capillary absorption (according to EN 1062-3) below 0.1 kg m ² h ^0.5
• CO ₂ permeability (according to EN 1062-6) SD over 50 m
• adhesion to concrete after 28 days (according to EN 1542) from 1.0 MPa
• adhesion to steel (in accordance with ASTM D-4541) 2.05 MPa
• adhesion to concrete (in accordance with ASTM D-4541) 2.85 MPa
• abrasion resistance (Taber index) in accordance with ASTM D-4060 - wear index (abrasive wheel: CS-10 and load 1 kg): after 500 cycles 0.0108; after 1000 cycles: 0.0140
• resistance to severe chemical attack according to EN 13529 (reduction on the Shore hardness scale): class I - G-1 (2%), G-9 (3%), G-10 (3%), G-11 ( 2%); class II - G-1 (3%), G-9 (5%), G-10 (5%), g-11 (3%)
• sliding resistance factor according to UNE-ENV 12633 (Rd): class 3
• suitable for contact with drinking water in accordance with BS 6920
• suitable for contact with food products: alcoholic, fatty, acidic and water based in accordance with 2000/72 / EC

Application

• protection of floors against aggressive chemical attack and abrasion
• chemical protection of the material in waterproofing in drinking water tanks and other water reservoirs
• Protective sealing system in epoxy or liquid waterproofing membranes exposed to abrasion
• high-performance anti-dust coating on concrete floors and pavements in parking lots, warehouses, shopping malls, ice rinks, sports centers, offices, exhibition halls
• multi-layer system on wet surfaces, ramps, stairs, cold stores, workshops, loading docks
• for industrial floors, tanks, for the food and pharmaceutical industries