Floors/flooring trowelled coatings

Two-pack epoxy Section 12.3.3. These are widely used to give the maximum protection to concrete surfaces, floors and walls. They can be applied as relatively thin coatings by spray or as thick epoxy surfaces applied by trowel. In all cases, the application must be preceded by adequate surface preparation (see Section 12.6.1). To allow maximum penetration into the concrete the first coat must have a low viscosity. Coal tar epoxies are used where protection is the main requirement. 

Coatings are applied to the outside or inside of the foundation, creating a radon-resistant barrier between the source and the inside of the home. They come in a wide variety of materials including paint-like products that can be brushed on the interior of the foundation, tar-like materials that are applied to the outside, and cementitious materials that can be brushed or troweled on. They cannot be applied to the underside of the concrete floor slab for obvious reasons, so they must be applied to the inside surface of the slab. The effective life of an interior coating can be greatly diminished by damage therefore, care must be taken to provide protection to the material used. 

Uses Epoxy for water dilution in combination with amine curing agents, forming fine particle size emulsions useful as modifiers for Portland cement, concrete, mortars, stuccos, grouts, as binders for trowel-applied floor toppings, as bond coats, base coats, membrane coatings, and sealers... 

Uses Diiuent for epoxy systems, for soiv.-free coatings and floorings Features General purpose low toxicity improves adhesion to most substrates incl. oily metal ( 5-10 phr) improves trowelability of epoxy mortars add to resin or curing agent Properties Gardner7 max. liq. sp.gr. 1.04 dens. 8.6 Ih/gal vise. 100cps... 

High solids, solvent-free coatings floorings concrete bonding troweling compounds... 

Trowel application is convenient only for large and flat surfaces such as floors, sandwich panels, walls (with a suitable high viscosity to avoid dripping). It is used to apply heavy coatings from 200 g/m up to several kg/m. ... 

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