Watmat is a quick-setting mortar for setting, leveling manhole covers and repairing floors. It is pre-mixed with special silicones, cements and other additives. It is available as a ready-to-use product - to be mixed with water and is available in two variants: Watmat W - winter (at ambient temperature up to 15 C), Watmat S - summer (from 15 C). It has good adhesion to the substrate.

Technical data

• gray powder, color similar to that of concrete
• powder density 1.3 g / cm ³
• time of keeping working properties (at 20 C) from 5 min
• setting time (at 20 C) 3 10 min
• fresh mortar consistency 7-9 cm
• bending strength after 1 h 2.8 MPa; after 2 h 3.0 MPa; after 4 h 3.1 MPa; after 1 day, 3.8 MPa; after 28 days 5.9 MPa
• compressive strength after 1 h 10.0 MPa; after 2 h 12.7 MPa; after 4 h 13.6 MPa; 15.1 MPa after 1 day; after 28 days 39.8 MPa
• modulus of elasticity in compression 20-40 GPa
• shrinkage after a hardening period of 90 days to 1.2 ‰
• adhesion to the substrate, pull-off method, not subjected to frost resistance F150 from 0.5 MPa; after frost resistance test F 150 from 0.5 MPa
• frost resistance after 150 cycles: weight loss up to 5%; decrease in bending strength up to 20%; decrease in compressive strength by up to 20%
• chemical resistance (ASTM-267) after 28 days of immersion: in water / sodium hydroxide 10% / sulfuric acid / gasoline / mineral oil SAE 30 / xylene / methyl ethyl ketone / trichlorethylene - no visible changes

Application

• immediate repair, setting and leveling of newly installed manholes in
• repair of industrial floors
• quick repairs in road construction - resumption of traffic after 2 hours
• quick deposition of drain grates on floors
• repair of structures in a vertical plane
• use in poorly ventilated rooms - thanks to its non-toxic and odorless nature