Sherwin Williams Resuflor Screed HCS

Sherwin Williams Resuflor Screed HCS is a three-pack, heavy-duty epoxy resin screed for industrial floors. Reaches FeRFA Type 8.

Best Uses

Sherwin Williams Resuflor Screed HCS is suitable for use on floor in a wide range of industrial applications including Chemical production and storage, Engineering and manufacturing facilities, Pharmaceutical production, Automotive industry, Aerospace production areas, Industrial workshops, Commercial kitchens etc.

• Excellent adhesion
• High compressive strength
• High tensile and flexural strength
• Impervious
• Impact and abrasion resistant
• Low odour
• Can be used to form coving and falls

Application

Preparation

Concrete substrates must be sound with a minimum compressive strength of 25 N/mm2, a minimum tensile strength of 1.5 N/mm2 and a relative humidity at the surface of no more than 75%. It is essential that all laitance, surface sealers and curing membranes and any surface contamination, such as oil, grease and dirt, existing coatings and loose material is removed by suitable mechanised equipment. Contained shot-blasting, planning or scarifying to CSP 4-6, for detailed information, refer to ICRI Guideline No.310.2R-2013. After surface preparation, all loose debris and dirt should be removed using vacuum equipment. Weak concrete must be removed, and local repairs carried out.

The recommended application temperatures of the areas should be kept between 15 - 30°C throughout the application and the curing period, otherwise this could have an adverse effect on the appearance and colour of the system. Surface temperature must be above 10°C. The substrate and uncured floor must be kept at least 3°C above the dew point to reduce the risk of condensation forming.

Open and porous substrates should be primed with one or two coats of primer to ensure a sealed surface. Sherwin Williams Resuprime™ ST may be used as primer on dry substrates with less than 75% ERH reading. Where the Relative Humidity of a substrate exceeds 75% ERH Resuprime™ MVT or Dampepox may be used, please contact us for a specification. For further information, please refer to recommended individual product data sheets.

Mixing
Materials should be pre-conditioned at 15°C to 25°C prior to use. Mix the entire contents of the base component with the hardener component using a low speed electric mixer (300 - 400 rpm) for 1 - 2 minutes until homogeneous. Pour the mixture into a rotary drum mixer and add the aggregate component steadily, mixing for a minimum of 3 minutes until a homogeneous mix is obtained. The mixed unit should be applied immediately after mixing.

Application
Apply to pre-primed areas and level between battens as necessary with a steel float. Alternatively, a sledge can be used, set at the required thickness. Resuflor™ Screed HCS should be worked with a trowel or float to achieve a dense, compacted finish. This is best achieved by gradually increasing pressure as the material compacts and beds down. Over-working the material may draw excess resin to the surface, resulting in colour and surface texture variations. Coving can be formed in advance of the floor laying process or at the same time. Where laid in advance, a join may be visible between the cove and floor.