Jotamastic 90 AL (Aluminium) Standard
A two-component polyamine cured epoxy mastic coating that is a high solids high build surface tolerant abrasion-resistant product.
An aluminium pigmented product that is specially designed for areas where optimum surface preparation is not possible or desired. Provides long-lasting protection in environments with high corrosivity.
Area of Use
Jotamastic 90 Aluminium can be used as a primer, mid coat, finish coat or as a single coat system in atmospheric and immersed environments. It can be applied at sub zero surface temperatures if using the Winter Grade activator. Ideally suited for areas where the areas where blasting the surface is not possible and only the minimum of preparation can be achieved.
General: Primarily designed for maintenance and repair
Marine: Outside hulls, exterior and interior areas
Protective: Recommended for offshire environments, including splash zones, refineries, power plants, bridges, buildings, mining equipment and general structural steel
Substrates: Properly prepared carbon steel, galvanised steel, stainless steel, aluminium, concrete and a range of aged coating surfaces
- Approved to meet the requirements of UK Highway Agency Item 115 for use on bridges and highway infrastructure.
- Part of a complete system that is certified to Network Rail Line Specification NR/L3/CIV/039 System M20 and M24 (Cert. No's. XM92/M20-168, XM92/M24-170) Item 7.1.5.
Polyamine cured epoxy mastic coating
|Coverage||Approximately 3 - 5.5m2 per litre|
|Application||Airless Spray or Brush|
|Drying Time||Touch dry in 12 hours, Dry to recoat 10 hours, Fully cured in 14 days @ 10°C|
|Mix Ratio||6:1 with Jotamastic 87 Standard Comp B|
|Wet Film Thickness (WFT)||
125 - 375 μm
|Dry Film Thickness (DFT)||
100 - 300 μm
|Cleaner/Thinner||Clean directly after using Jotun Thinner No. 17|
|Storage||2 years if can kept dry and firmly shut, away from direct sunlight|
We take health and safety seriously here at AllFinishes and recommend you use the correct protection for the job. Disregarding safety equipment can be damaging and result in long term health conditions. Please check out our Moldex range for high quality respirators and hearing protection.
To secure lasting adhesion to the subsequent product all surfaces shall be clean, dry and free from any contamination.
|Carbon steel||St 2 (ISO 8501-1) or SSPC SP-2||Sa 2 (ISO 8501-1) / SP 6 / NACE No. 3 (SSPC-VIS 1)|
|Stainless steel||The surface shall be hand or machine abraded with non-metallic abrasives or bonded fibre machine or hand abrasive pads to impart a scratch pattern to the surface and to remove all polish from the surface.||Abrasive blast cleaning to achieve a surface profile using approved nonmetallic abrasive media which is suitable to achieve a sharp and angular surface profile.|
|Aluminium||The surface shall be hand or machine abraded with non-metallic abrasives or bonded fibre machine or hand abrasive pads to impart a scratch pattern to the surface and to remove all polish from the surface.||Abrasive blast cleaning to achieve a surface profile using approved nonmetallic abrasive media which is suitable to achieve a sharp and angular surface profile.|
|Galvanized steel||The surface shall be clean, dry and appear with a rough and dull profile.||Light brush blasting using nonmetallic abrasive leaving a clean, rough and even pattern.|
|Shop primed steel||Clean, dry and undamaged shop primer (ISO 12944-4 6.1)||Sa 2 (ISO 8501-1) / SP 6 / NACE No. 3 (SSPC-VIS 1)|
|Coated surfaces||Clean, dry and undamaged compatible coating (ISO 12944-4 6.1.4)||Clean, dry and undamaged compatible coating (ISO 12944-4 6.1.4)|
|Concrete||Low pressure water washing to a rough, clean, dry and laitance free surface.||Minimum 4 weeks curing. Moisture content maximum 5 %. Prepare the surface by means of enclosed blast shot or diamond grinding and other appropriate means to abrade the surrounding concrete and to remove laitance.|
Apply with an Airless Spray, although brush application can be used for stripe coating or small areas. A roller may be used for small areas but is not recommended for the first primer coat. Care must be taken during roller and brush application to ensure the necessary dry film thickness.