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M-CORR 400 – UV Stable Polyurethane Top Coat

Is a solvent based, two pack coating. After cure, the material provides a high gloss and durable finish. Typically used in conjunction with, epoxy coating systems as a colour stable top-coat

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£175.00 Excl VAT

Description

M-CORR 400 - UV Stable Polyurethane Top Coat

M-CORR 400 – UV Stable Polyurethane Top Coat is a solvent based, two pack coating. After cure, the material provides a high gloss and durable finish.

Typically used in conjunction with epoxy coating systems as a colour stable top-coat. It allows quick turnaround due to its rapid film hardening properties and offers excellent chemical and solvent resistance.

The material has good anti-corrosion properties and is designed for the long-term protection of steel and concrete structures against weathering and environmental corrosion.

Typical Uses

  • External pipe protection
  • Storage tank protection
  • External pumps, valves protection
  • Structural steel work

Please contact us to discuss your project before purchasing this material to confirm suitability.

Application Guide

  • All oil and grease must be removed from the surface using an appropriate cleaner such as MEK or similar type solvent.
  • All surfaces must be abrasive blasted to ISO 8501/4 Standard SA2.5 (SSPC SP10/ NACE 2) minimum blast profile of 75 microns using an angular.
  • Once blast cleaned the surface must be degreased and cleaned using MEK or similar type solvent.
  • All surfaces must be coated before gingering or oxidation.
  • All surfaces must be hydro-blasted using clean water at 12,000 psi (850bar) to NACE 5 (SSPC SP13 WJ3-WJ1).
  • All surfaces must be coated before gingering or oxidation occurs.
  • All oil and grease must be removed from the surface using an appropriate cleaner such as MEK.
  • All surfaces must be mechanically abraded using handheld grinders to ISO 8501/4 ST3 (SSPC SP3 ST3).
  • Once abraded, the surface must be degreased and cleaned using MEK or similar type material.
  • All surfaces must be repaired before gingering or oxidation occurs.

PLEASE NOTE: Soluble salt contaminated surfaces the substrate must be pressure washed with clean water and checked for salt contamination this process may need to be repeated several times.

Existing Concrete

  • If the concrete surface is contaminated, pressure wash using clean water.
  • Once the concrete is dry lightly abrasive blast or scarify taking care not to expose the aggregate.
  • Clean all dust and debris from the surface and take several moisture readings and prime with M-PRIME 100 – Low Viscosity Epoxy Concrete Primer or M-PRIME 104 – Damp Tolerant Concrete Primer dependent on the moisture readings obtained.
  • Apply M-PRIME 100 or M-PRIME 104 at a target wet film of 150 microns, allow to cure before overcoating.
  • For very porous surfaces a second coat of primer may be required.

New Concrete

  • Allow new concrete to cure for a minimum of 21 days, lightly abrasive blast or scarify to remove any surface laitance.
  • Clean all dust and debris from the surface and take several moisture readings and prime with M-PRIME 100 – Low Viscosity Epoxy Concrete Primer or M-PRIME 104 – Damp Tolerant Concrete Primer dependent on the moisture readings obtained.
  • Apply M-PRIME 100 or M-PRIME 104 at a target wet film of 150 microns, allow to cure before overcoating.
  • For very porous surfaces a second coat of primer may be required.

 

 

Prior to mixing please ensure the following:

  • The base component is at a temperature between 15-25°C.
  • Do not apply the material when the ambient or substrate temperature is below 5°C.
  • Transfer the contents of the Activator unit into the Base container.
  • Using a low speed electric paddle mixer, mix the 2 components until a uniform material free of any streaks is achieved.
  • Once mixing is complete use the mixed paste as soon possible after mixing.
  • Use all mixed material within 20 -25 minutes at 20°C.

Brush & Roller

  • Pour the mixed material into a paint kettle or paint tray (this will maximise the usable life).
  • Stripe coat all edges, joints & corners.
  • Once the stripe coat has cured and is capable of being overcoated, apply a basecoat at a minimum wet film thickness 100 microns.
  • Once the basecoat has cured sufficiently, approximately 90 minutes at 20°C, apply a topcoat at a minimum wet film thickness of 100 microns.

 

AppearanceBase:
Activator:
Mixed:
Thin film liquid
Clear liquid
Available in a range of colours
DensityBase:
Activator:
Mixed:
1.514
1.035
1.418
Mixing RatioBy weight:
By volume:
5.5:1
4:1
Solids Content55%
Sag ResistanceNil at150 microns
Usable Life10°C
20°C
30°C

60 minutes
30 minutes
15 minutes


CoverageApplied as a 2 coat system to properly
prepared surfaces.

The material should be applied
at a target thickness of 100
microns per coat with a theoretical
coverage rate of 10m² per ltr
per coat.
10m² per ltr per coat
Cure Times20°C
30°C
40˚C
90 minutes
45 minutes
22.5 minutes
Storage LifeUnopened and stored in dry conditions (15-30°C)2 years
AdhesionTensile Shear to ASTM D1002
on abrasive blasted mild steel
with 75 micron profile


ASTM 412
195kg/ cm² (2770 psi)
Salt Fog ResistanceTested to ASTM B117Unaffected at 10,000 hours
Corrosion ResistanceTested to ASTM B1175000 hours excellent
Humidity ResistanceTested to BS3900 PART F2Unaffected after 5000 hours
UV Resistance


Shore D to ASTM G53Unaffected at 10,000 hours
Heat ResistanceSuitable for use in immersed
conditions at temperatures up to 50°C.

Resistant to dry heat
50°C


130°C

Additional information

Weight 5.5 kg
Unit Size

5ltr

Colour

Range