Description
M-CHEM 501 – Abrasion & Chemical Resistant Epoxy Coating
Is a high build solvent-free epoxy coating with the addition of ceramic carbide fillers designed for the long term protection of steel and concrete structures against abrasion and chemical attack.
M-CHEM 501 – Abrasion & Chemical Resistant Epoxy Coating is suitable for operating temperature ranging from –20C to 60C.
The product is used as a protective coating or lining for industrial equipment such as effluent tanks, slurry tanks, marine structures.
Typical Uses
- Internal Pipe Lining,
- Internal Tank & Vessel Lining,
- Protection for Chutes & Hoppers
- Protective coating for Sumps and Chemical Pits
- Erosion Protection for Fans & Fan Housings
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 250 microns.
- Once the basecoat has cured sufficiently, approximately 4 hours at 20°C, apply a topcoat at a minimum wet film thickness of 250 microns.
| Appearance | Base Activator Mixed | Highly structured thixotropic liquid Amber liquid Thixotropic liquid |
| Mixing Ratio | By Weight By Volume | 4:1 2.4:1 |
| Density | Base Activator Mixed | 1.78 1.05 1.56 |
| Solids Content | 100% | |
| Sag Resistance | Nil at | 400 microns |
| Usable Life | 10°C 20°C 30°C | 60 minutes 30 minutes 15 minutes |
| Coverage | 2 coat system to properly prepared surfaces at 400 microns: | 4m² per ltr per coat |
| Cure Times at 20°C | Minimum overcoating time Maximum overcoating time Water/ sea water immersion Chemical immersion | 4 hours 36 hours 3 days 5 days |
| Storage Life | Unopened and stored in dry conditions (15-30°C) | 5 years |
| Abrasion Resistance | Taber CS17 Wheels/1 Kg load | 138mg loss/1000 cycles 0.22cc loss/1000 cycles |
| Adhesion | Tensile Shear to ASTM D1002 on abrasive blasted mild steel with 75 micron profile | 194 kg/ cm² (2750 psi) |
| Compressive Strength | Tested to ASTM D 695 | 649kg/cm² (9200psi) |
| Impact Resistance | Tested to ASTM G14 | 2.0 joules |
| Cathodic Disbondment | Tested to ISO 21809-3:2016 | 28 days, 1.5v, 3% NaCl 23˚C 2.3mm 65˚C 5.1mm 95˚C 7.7mm |
| Corrosion Resistance | Tested to ASTM B117 | 5000 hours |
| Flexural Strength | Tested to ASTM D790 | 522kg/cm² (7400psi) |
| Hardness | Shore D to ASTM D2240 | 80 |
| Heat Resistance | Suitable for use in immersed conditions at temperatures up to: Suitable for use in dry conditions at temperatures up to dependant on load: | 60°C 200°C |
| Brine Crude Oil De-ionised Water Diesel Hydrochloric Acid 20% Naphtha Phosphoric Acid 30% Sodium Hydroxide 50% Sulphuric acid 20% | 40˚C 40˚C 30˚C 40˚C 40˚C 40˚C 40˚C 40˚C 40˚C |
Chemical Resistant Coatings
- M-CHEM 100 – Chemical Resistant Epoxy Coating
- M-CHEM 101 – Chemical Resistant Epoxy Coating – Extended Cure
- M-CHEM 200 – Chemical Resistant Polyurethane Coating
- M-CHEM 500 – Erosion & Chemical Resistant Epoxy Coating
