Ressi EPO Roll Coat

Ressi EPO Roll Coat

Long-Lasting Epoxy Coating

Ressi EPO Roll Coat is a long-lasting, high build epoxy coating material designed to be applied at thicknesses between 100 microns to 1500 microns in a single coat over concrete, cementitious substrates and steel. It is suitable for both wall and floor applications. Ressi EPO Roll Coat is made from Bisphenol-A based resins and selected polyamide-based hardeners, and is compatible with a variety of other substrates such as wood, metal, fiberglass and selected plastics.

Ressi EPO Roll Coat can be applied to steel and concrete internal tank surfaces to provide low to moderate corrosion resistance, protection against oils, chemical wastewater, etc. It can also be used as waterproofing for tanks and reservoirs containing water intended for human consumption. Other areas of application include silos, wastewater treatment plants, canning and bottling units, food processing plants, etc.

ADVANTAGES

• Long-lasting, high build, non-toxic.
• Does not support algae or fungal growth.
• Suitable for use in confined areas and potable water tank applications.
• Excellent resistance to seawater and solvents.
• Suitable for old and new concrete surfaces.

TECHNICAL TABLE

_{Note: At 40°C pot life will half so application should be planned accordingly. Typical results under laboratory conditions.}

SURFACE PREPARATION

Steel: The base metal should be roughened and preferably shotblasted with grit. Where shot blasting is not possible, pre-treatment may be carried out with tap hammers, rotary wire brushes or by flame scaling. Cleaning with solvent or a strong detergent is advisable to ensure the surface is free from grease, oil, paint, and other contaminants. Ressi EPO Roll Coat must be applied before oxidation of steel occurs. Surface defects revealed by blast cleaning should be treated with a suitable repair mortar within the Ressichem patch series compatible with both steel and subsequent epoxy materials.

Concrete / Cementitious Surfaces: Surfaces must be dry, clean, and free from mold, oil, curing compound, dirt, grease, or excessive laitance. Prepare the surface by suitable mechanical means to provide an open pore surface. Cracks, pinholes, potholes, etc. should be routed out and repaired with a suitable epoxy-based crack/void filler from the Ressichem range. Uneven concrete should be levelled to produce a roughened flat surface. Undulated floors can be levelled/repaired using suitable floor repairing materials from the Ressichem range prior to application. All internal corners should be covered using a suitable epoxy compatible material from the Ressichem range or as approved by consultant/client. Sharp edges should be rounded off. New concrete must be at least 28 days old prior to application. Moisture content must be less than 5%.

MIXING

Ressi EPO Roll Coat is supplied in premeasured packs. Base and hardener should be stirred separately before mixing. Transfer base into a mixing container and mix for 1 minute. Add hardener and mix using a slow speed drill machine fitted with a paddle mixer for 2 minutes to get a uniform mix. Scrape sides/edges/bottom of the container using a spatula and continue mixing for a further 1 minute.

APPLICATION

Apply the mixed material using a suitable squeegee, stiff nylon brush or roller. Work the material into the surface to ensure total absorption into the substrate. Finish using a medium-to-long nap roller.

Ensure required application rates are achieved to maintain minimum dry film thickness per coat. Spray application is also a preferred method to accurately obtain the required dry film thickness.

A minimum of 2 coats should be applied to achieve desired performance. Before each coat, examine the surface for pinholes/cavities. Where pinholes are apparent, fill using Ressi EPO Crack Fill or Patch Epoxy 111 Repair Mortar. Apply the second coat at right angles to the first and preferably in a different color.

For large water tank areas expected to undergo high pressure, strengthen by using 3 coats and fiberglass mesh. Consult Ressichem for details.

LIMITATIONS

At higher temperatures pot life will be reduced. For working in cold climates (<5°C), containers need to be kept in a hot water bath.

PACK SIZE

Ressi EPO Roll Coat is available in the following pack sizes:

1.33 KG
Part A: 1 KG
Part B: 330 g

13.3 KG
Part A: 10 KG
Part B: 3.3 KG

26.6 KG
Part A: 20 KG
Part B: 6.6 KG

COVERAGE

Approximately 32 – 35 SFT / coat @ 200 micron thickness. Actual coverage may vary according to substrate porosity and texture, wastage factors, site and application conditions. It is advisable to apply the material in a small test area to estimate material coverage.

SHELF LIFE

12 months from date of manufacture when stored under dry sheltered warehouse conditions in original unopened packaging. Extreme temperature / humidity may reduce shelf life.

HEALTH AND SAFETY

Gloves, goggles and suitable masks should be worn. Do not reuse containers; dispose them off as per local rules and regulations. Please refer to the product MSDS for further health and safety information.