RESINAL μ50

Resin
Specific Weight @ 25 °C 1.7

Hardener

Specific Weight @ 25 °C 1.37

Mixture

Specific Weight @ 25 °C 1.61

Flash Point °C >110

Hardening Properties

Working Time (200 g mass), ISO 9514, minutes: 30

Coating time, at 25 °C, hours: 1-24

Time until touch dry, at 25 °C, hours: 4

Initial cure time, at 25 °C, hours: 24

Full curing (polymerisation) time 25 °C, hours: 72

Coverage

Trowel/Brush application, minimum thickness 500 microns, coverage 1.25 m² / kg, excluding wastage.

Spray application with max. dilution 10%, minimum thickness 300 microns, coverage will be 1.77 m² / kg, excluding wastage.

Dilution:For spray applications, dilute with M.E.K. or Acetone max 10% by volume; wait at least 1 hour between coats.

GENERAL INFORMATION

This product is not recommended for use in systems rich in oxygen and/or pure oxygen and must not be selected as a sealant for chlorine or other strong oxidising agents. For information on the safe handling of this product, consult the safety data sheet (SDS).

Surface Preparation

Surface preparation is important for the long-term performance of the product. The parameters may vary depending on the severity of the application, durability expectations and initial conditions of the substrate to be treated.

1. Remove any dirt, oil, grease etc. with a suitable detergent.
2. Any irregularities, weld splashes or residue, and any other surface roughness must be levelled and ground smooth; any depressions or porosity must be filled and ground smooth. All protrusions, edges or joints must be levelled to a minimum radius of 3 mm and all corners must also be rounded to the same specifications.
3. Blast the entire surface to be treated with angular grit until you achieve roughness of 50-70 micron, and near-white metal blast cleaning level (SIS SA 2½ /SSPC-SP 10). For immersion applications, a white metal blast cleaning (SIS SA 3/SSPC-SP 5) level is required.
4. After abrasive blasting, the metal surface must be cleaned with a cleaner which does not leave residue, or with a solvent, to remove dust and contaminants. Clean, dry compressed air can also be used to remove dust and contaminants. The surface must be coated before any new oxidation occurs.

Method of Application

1. Film thickness for coating: 200-300 micron. It is recommended to apply a minimum of 2 layers to avoid micro-pitting.
2. Application temperature (surface and ambient): 15-30 °C.
3. Relative humidity: <85 %; The surface temperature must always be at least 3 °C above the dew point.
4. Spray systems:

• Airless sprayer for abrasive two-pack products with compression ratio of at least 60:1.
• Nozzle: 3-4 mm; fan 50-60°, depending on the area to be coated.
• Nozzle pressure: 210 bar minimum. Product temperature ≥25 °C.

The second coats must be made once the layer of product has gelled but not polymerised, within the “overcoating time”. If this time is exceeded, the surface will need to be lightly scuffed and cleaned with solvent to eliminate residue.

Check:

• Perform a visual check as soon as application is complete to ensure there is no untreated porosity.

• Once the coating has polymerised, repeat the visual check to confirm the lack of untreated areas and porosity or mechanical damage.

• Check the coating thickness, above all in critical areas.

Repairs

All untreated areas or porosity or areas with insufficient measured thickness must be restored or repaired by applying additional product, after lightly scuffing and cleaning the surface.

Cleaning

Clean tools immediately after use with a solvent such as acetone or isopropyl alcohol. Once hardened, the product can only be removed via mechanical means.