DuraPol UHT

Advance coating system.

  • Solvent-free, two component, hybridized epoxy offeringtemperature resistance from -70 °C to +190°C (374°F) immersed and +250°C (482°F) non-immersed. Resists thermal cycling.
  • Excellent broad range chemical resistance.
  • Resists dissolved H2S at high temperatures.
  • Insitu application to exterior of hot surfaces.
  • Combats “Corrosion under Insulation”.
  • Single coat curing at ambient temperature.
  • Has very high antifouling resistance.
  • Can be cleaned using high temperature steam.
  • Can be used to repair damaged equipment, glass / rubber lined vessels and defects in old coatings coming out of service.

DuraPol UHT is an advanced coating system derived from a novel technology that combines, on a molecular level, both organic and inorganic molecules to provide a thermally stable highly crosslinked structure. It offers superior broad range chemical resistance from sub ambient to elevated temperatures in excess of 190°C, after only an ambient cure. The cured coating has excellent sliding abrasion resistance coupled with a very smooth finish that enhances fluid flow and prevents sludge build up. DuraPol UHT can be steam cleaned at temperatures exceeding 190°C (374°F).

Application Areas

Chemical tanks, process vessels, evaporators, scrubber units, heat exchangers, condensers, distillation units, autoclaves, sulphur recovery units, sour gas treating units. Internal coating of pipe-work, pumps and valves. External coating of equipment operating from sub ambient to high temperatures suffering from CUI such as insulated pipes/spools and process vessels. Possibility of application to hot surfaces while equipment is operational.

Physical Properties

Abrasion Resistance: ASTM D 4060

20 mg weight loss (Tabor CS-17/1kg/1000 cycles)

Impact resistance: ASTM G14

Forward: 13 Joules

Reverse: 3 Joules

Adhesive Strength: ASTM D4541

29.3 MPa (cohesive failure)

Temperature Resistance: NACE TM0174 testing

+190°C Immersed

+250°C Non Immersed

Coating Data

Finish: Glossy

Colours Available: Dark Brown, Black, Grey, Red

Solids Content: 100%

Mixed Viscosity@20°C: 20,000 +/- 5000 mPa.s

Recommended Dry Film Thickness (DFT):

Vessel / Pipe internals: 600 - 800 microns

Equipment externals: 200 - 400 microns

Concrete surfaces: 600 - 800 microns

Number of Coats: 1

Practical Coverage: 0.40 m2/kg @ 800 microns DFT

Pot Life at 20°C: 75 minutes

Tack Free/ Drying Time (20°C): 160 minutes

Storage Life: +36 months in unopened containers

Packaging: 5 and 15 kg composite kits

Specific Gravity: 1.80 gms/cm3 (Base + Hardener)

Typical Chemical Resistance(full immersion)

  • 98% Sulphuric acid
  • 37% Hydrochloric acid
  • 100% Glacial acetic
  • 50% Nitric acid
  • Methylenechloride, vinyl chloride, benzyl chloride
  • Amines (DEA, MDEA, MEA, DGA, ADIP)
  • Spent amines rich in H2S/CO2
  • Carbon Disulphide
  • Molten Sulphur + acidic vapour
  • Conc. Methanol, ethanol and derivatives
  • Sodium hypochlorite, sodium perchlorate
  • MEK, Toluene, Xylene, Acetone, Ammonia
  • 50 - 75% Sodium Hydroxide
  • Any chemical solution rich in chlorides or sulphates

For further enquiries, please click here.