MCH 200PU – Chemical & Corrosion Resistant Coating

£77.50 Excl VAT

MaxChem 200 is chemical resistant coating and lining system. 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 protection of tanks, chemical containment, bunds and pipelines.

Clear

Description

MAXCHEM 200PU – CHEMICAL & CORROSION RESISTANT POLYURETHANE COATING

Is an high build coating. Formulated using the latest solvent free polyurethane coating technology. When cured the material exhibits a high degree of flexibility allowing for substrate movement without cracking 

MCH 200PU POLYURETHANE COATING is designed principally for the long-term protection of tanks, bunds, pipelines and other concrete or steel structures in contact with diluted acidic solutions and industrial chemicals 

PROTECTSAPPLICATIONSFEATURESBENEFITS
Concrete
Composite
GRP
Steel
External pipe protection
Internal pipelining
The lining of fuel storage tanks
The lining of chemical storage tanks
Bunds and containment areas
Chemical floor protection
External protection for pumps, valves and process equipment
Solvent-free
100% Solids material
Chemical resistance
Flexible when cured
Outstanding corrosion resistance
Two colour system
Easy mix formulation
Safe to use in a confined space
No coating shrinkage or cracking
Resists wide range of chemicals
Ideal for surfaces with movement
long-term asset protection
Helps to monitor coating erosion
Aids application on site

MAXCHEM 200PU – CHEMICAL & CORROSIONRESISTANT POLYURETHANE COATING

Description

MAXCHEM 200 – CHEMICAL & CORROSION RESISTANT POLYURETHANE COATING is formulated using the latest solvent free, high build polyurethane coating technology. 

When cured MAXCHEM 200 – CHEMICAL & CORROSION RESISTANT POLYURETHANE COATING exhibits a high degree of flexibility allowing for substrate movement without cracking.

Designed principally for the long-term protection of tanks, bunds and pipelines and other concrete or steel structures in contact with diluted acidic solutions and industrial chemicals

Applications

  • Bund lining & coating
  • Storage tank lining
  • Structural steel
  • Internal pipe lining
  • Chemical process flooring
  • Internal process vessel surfaces

Surface Preparation

Steel

All oil and grease must be removed from the surface of the repair using an appropriate cleaner such as MEK or similar solvent. For optimum performance, the surface should be grit-blasted to ISO 8501/4 Standard SA2.5 (SSPC SP10/ NACE 2) and a minimum blast profile of 75 microns using an angular abrasive.

Once blast cleaned, the surface must be degreased and cleaned using MEK or similar solvent. All surfaces must be repaired before gingering or oxidation occurs

Where abrasive blast cleaning is not possible (excluding salt contaminated surfaces) the surface should be roughened by, needle gun or grinding. Under these conditions’ adhesion levels will not be optimal although still satisfactory for most applications.

Surface Preparation

Salts

For salt contaminated surfaces the area must be grit-blast cleaned as mentioned above and left for 24 hours to allow any ingrained salts to come to the surface.

After this 24-hour period the surface must be washed with MEK prior to brush blasting to remove the surface salts. This process must be repeated until all ingrained contaminants have been sweated out of the surface.

Surface Preparation Concrete

Remove any contamination and lightly abrasive blast or scarify taking care not to expose the aggregate before application of MCH 200PU. Allow new concrete to cure for a minimum of 21 days and likewise treat to remove any surface laitance before coating.

For optimum results on damp concrete, condition with MPR 101CS – Damp Tolerant Concrete Primer Where the concrete is dry but highly porous, it is recommended to prime the concrete with MPR 100CS – Concrete Primer

Mixing

Warm the Base component to 15-25°C before mixing and do not apply when the ambient or substrate temperature is below 5°C or less than 3°C above dew point.

Mix both PART-A and PART-B together in full units as supplied.

For small batch mixing us a ratio of: 3.25:1 by volume or 3:1 by weight

When mixing both materials, it is very important to have a uniform light or dark grey  fluid that is streak free. Once mixing is complete, use the mixed paste as soon possible after mixing.

 Application

Transfer the contents of PART – A unit into the PART – B container and mix thoroughly until a uniform material free of any streaks is achieved. From the commencement of mixing the whole of the material should be used within 15 minutes at 20°C

MCH 200PU Is typically applied as a two coat system but can be used as a single coat system for horizontal surfaces as long a a thorough inspection is carried out once the material has cured.

Base-coat: Apply the mixed material onto the prepared surface by brush or roller. This should be in two coats at a target thickness of 400 microns per coat using a practical coverage rate of 2.5 sq metres per litre per coat.

Top-coat: Apply the second coat at a target thickness of 400 microns as soon as possible after the first coat is dry and not in excess of 24 hours. Use a practical coverage rate of 2.5 sqm per litre per coat.

Pot Life

15 minutes at 20°C

Coverage

The material should be applied by brush or roller in two coats at a target thickness of 400 microns per coat using a practical coverage rate of 2.5 sqm per litre per coat.           

The coverage rate stated is theoretical, practical coverage may vary due to substrate temperature, poor surface profile or pitting.

Cure Times

At 20°C the applied materials should be allowed to harden for the times indicated below before being subjected to the conditions indicated. These times will be extended at lower temperatures and reduced at higher temperatures:

  • Movement without load or immersion            2 hours
  • Light loading                                                           4 hours
  • Full loading                                                              3 days                  
  • Immersion                                                                7 days

Overcoat

Times

Minimum – the applied material can be over-coated as soon as it is touch dry. 

Maximum – over-coating time 24 hours

Where the maximum over-coating time is exceeded, the material should be allowed to harden before being abraded, or flash-blasted and solvent washed to remove any surface contamination

Health and Safety

Please ensure good practice is always observed during the mixing and application of this product.

Protective gloves must be worn during the mixing and application of this product. Before mixing and applying the material please ensure you have read the fully detailed Material Safety Data Sheet.

Legal Notice

The data contained within this Technical Data Sheet is furnished for information only and is believed to be reliable at the time of issue. We cannot assume responsibility for results obtained by others over whose methods we have no control.

It is the responsibility of the customer to determine the products suitability for use. Maxkote accepts no liability arising out of the use of this information or the product described herein.

PRINT APPLICATION GUIDE

MAXCHEM 200PU – CHEMICAL & CORROSIONRESISTANT POLYURETHANE COATING

AppearanceBase
Activator
Mixed
Blue or light grey thixotropic liquid
Amber liquid
Blue or light grey Thixotropic liquid
Mixing RatioBy Weight
By Volume
3.25:1
3:1
DensityBase
Activator
Mixed
1.31
1.22
1.29
Solids Content100%
Sag ResisitanceNil at400 microns
Usable Life10°C
20°C
30°C

20-20 minutes
15 minutes
8 minutes

CoverageBasecoat applied at a minimum target film thickness of 400 microns:
Topcoat applied at a minimum target film thickness of 400 microns:
Finished, minimum target film thickness of 800 microns:


2.5 sqm /ltr
2.5 sqm/ltr
1.250 sqm/ltr
Cure TimesMovement without load or immersion:
Light loading:
Full loading/water immersion:
Chemical Contact:
2 hours
8 hours
3 days
14 days
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 profile169kg/cm² 2400psi
Cathodic Disbondment(British Gas CW6 and FW0028 Draft methods)
Pass
Corrosion ResistanceTested to ASTM B1175000 hours
Flexibility(British Gas FW0028 Draft method)
3% Strain at 20°C – PASS
2% Strain at 5°C – PASS
1% Strain at 0°C
ASTM D522
Pass
Pass
Pass
Pass
HardnessShore D to ASTM D224080
Heat ResistanceSuitable for use in immersed conditions at temperatures up to:
Suitable for use in dry conditions at temperatures up to dependant on load:
60°C
120°C
Chemical ResistanceAt 20°C product resists attack by a wide variety of inorganic acids, alkalies, salts and organic mediaAcetic Acid 10%
Benzoic Acid 15%
Caster Oil
Cyclohexane
Ethyl Alcohol 50%
Formic Acid 10%
Fuel Oil
Glycerine
Hydrochloric Acid 20%
Isopropanol
Lactic Acid 20%
Mineral Oil
Nitric Acid 10%
Phosphoric Acid 50%
Potassium Hydroxide 10%
Sodium Carbonate 10%
Sodium Hydroxide 10%
Sulphuric Acid 50%
White Spirit

PRINT TECHNICAL DATA

MAXCHEM 200PU – CHEMICAL & CORROSIONRESISTANT POLYURETHANE COATING

PRINT MSDS PART – A

PRINT MSDS PART – B

MAXCHEM 200PU – CHEMICAL & CORROSIONRESISTANT POLYURETHANE COATING

When used according to the procedures detailed in the Application Guide and Technical Data Sheet for the material. The product resists attack by a wide variety of inorganic acids, alkalies, salts and organic media

including:

  • Acetic Acid 10%
  • Benzoic Acid 15%
  • Caster Oil
  • Cyclohexane
  • Ethyl Alcohol 50%
  • Formic Acid 10%
  • Fuel Oil 
  • Glycerine
  • Hydrochloric Acid 20%
  • Isopropanol
  • Lactic Acid 20%
  • Mineral Oil
  • Nitric Acid 10%
  • Phosphoric Acid 50%
  • Potassium Hydroxide 10%
  • Sodium Carbonate 10%
  • Sodium Hydroxide 10%
  • Sulphuric Acid 50%
  • White Spirit

For more detailed information on chemical resistance for this product, do not hesitate to contact us!

Contact Us!

Additional information

Weight2.2 kg
Colour

,

Mixing Ratio

3:1 By Volume, 3.25:1 By Weight