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M-CORR 300 – High Build Solvent free PU Coating

Offers outstanding corrosion resistance. Formulated using the latest polyurethane technology. When cured the material exhibits a high degree of flexibility allowing for substrate movement without cracking. Designed principally for the long-term external protection for storage tanks, industrial equipment, pipelines and structural steel.

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£71.00 Excl VAT

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Description

M-CORR 300 - High Build Solvent Free PU Coating

Is a high build, solvent free industrial coating formulated using the latest polyurethane coating technology. When cured the material exhibits a high degree abrasion resistance and flexibility allowing for substrate movement without cracking. Designed principally for the long-term high corrosion protection of storage tanks, structural steel, pump and valve casings, pipelines and other steel structures.

 

Typical Uses

  • Storage tank lining
  • Structural steel
  • External pipe protection
  • Pump & valve protection
  • External  process vessel surfaces

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 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 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 350 microns.
  • Once the basecoat has cured sufficiently, approximately 6 hours at 20°C, apply a topcoat at a minimum wet film thickness of 350 microns.
AppearanceBase:
Activator:
Mixed:
Highly structured thixotropic liquid
Amber liquid
Thixotropic liquid
DensityBase:
Activator:
Mixed:
1.31
1.22
1.29
Mixing RatioBy weight:
By volume:
3.25:1
3:1
Solids Content100%
Sag ResistanceNil at400 microns
Usable Life10°C
20°C
30°C

40 minutes
20 minutes
10 minutes


CoverageCan be
applied in a single coat or as a
2 coat system to properly
prepared surfaces.

The material should be applied
at a target thickness of 350
microns per coat with a theoretical
coverage rate of 2.85² per ltr
per coat.
2.85m² per ltr per coat
Cure Times20°C
30°C
40˚C
6 hours
3 hours
90 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
169kg/ cm² (2400 psi)
Impact ResistanceTested to ASTM G148.6 joules
Corrosion ResistanceTested to ASTM B1175000 hours excellent
Compressive StrengthTested to ASTM D695552kg/ cm² (7830 psi)
Flexural Strength


Tested to ASTM D790755kg/ cm² (10700 psi)
Hardness


Shore D to ASTM D224080
Heat ResistanceSuitable for use in immersed
conditions at temperatures up to 70°C.

Resistant to dry heat
70°C

120°C
Chlorine (Wet)
Chloramine
Chlorine Dioxide (Wet)
Sodim Hypochlorite 15%
30˚C
35˚C
35˚C
30˚C

Additional information

Weight 2 kg
Colour

Blue, Light grey

Mixing Ratio

3:1 By Volume, 3.25:1 By Weight

Unit Size

2ltr

Manufacturer

Maxkote