Description
M-CORR 500 - Water-Based Acrylic Encapsulation Coating
Is formulated to provide long-term protection to steel structures, concrete surfaces or surfaces with existing coatings. Due to the nature of the product, it can be applied to the hydro-blasted or manually prepared surfaces and offers a typical life expectancy of in excess ten years.
Typical Uses
- Concrete structures
- Structural steel
- Storage tanks
- External pipe protection
- External tank coating
- Structural steel protection
Please contact us to discuss your project before purchasing this material to confirm suitability.
Application Guide
- 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.
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.
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.
- Using a low speed electric paddle mixer, ensure a consistent mix of acrylic emulsion is achieved.
- Once mixing is complete use the mixed paste as soon possible.
- 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 400 microns.
- Once the basecoat has cured sufficiently, approximately 30 minutes at 20°C, apply a topcoat at a minimum wet film thickness of 400 microns.
Appearance | Single Component | Thixotropic acrylic emulsion |
Mixing Ratio | Single Pack | Ready to use |
Density | 1.25 | |
Solids Content | 65% | |
Sag Resistance | Nil at | 500 microns |
Usable Life | 10°C 20°C 30°C | 60 minutes 30 minutes 15 minutes |
Coverage | Applied at a minimum wet film thickness (in a 2 coat application) | 50sqm @ 400 microns |
Cure Times | Touch dry @ 20°C | 30 minutes |
Storage Life | Unopened and stored in dry conditions (15-30°C) | 5 years |
Tensile Strength | ASTM 412 | 3.2N/ mm² (2750 psi) |
Corrosion Resistance | Tested to ASTM B117 | 5000 hours excellent |
Corrosion Weathering | Tested to ASTM D4798 | 1500 hours no cracks or blistering |
Elongation | Tested to ASTM D412 | 230% |
UV Resistance | Tested to ASTM D4587 | 5000 hrs unaffected |
Impact Resistance | Tested to ASTM D244 | 110lb/ins |
Heat Resistance | Suitable for use in dry conditions at temperatures up to: | 90°C |