Jotun Jotamastic 87

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  • Minimal surface preparation
  • Cures at low temperatures
  • Includes hardener

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Manufacturer: Jotun
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Jotun Jotamastic 87

Jotun Jotamastic 87 is a two-component polyamine cured epoxy mastic coating which is a surface tolerant, high solids and high build product. Jotamastic 87 is designed for areas where optimum surface preparation is not possible or desired and can also be applied at sub-zero surface temperatures. Jotamastic 87 provides long lasting protection in environments with high corrosivity.

Who’s Jotun Jotamastic 87 for

Jotun Jotamastic 87 is suitable for properly prepared carbon steel and aged coating surfaces. It can be used as a primer, mid coat, finish coat or as a single coat system in atmospheric and immersed environments. Jotamastic 87 is primarily designed for maintenance and repair. In the marine industry it can be used on outside hulls, exterior and interior areas including water ballast tanks and it can be used as a protective coating for offshore environments like splash zones, refineries, power plants, bridges, building, mining equipment and general structural steel.

Jotun Jotamastic 87 can be applied using airless spray, using a brush is recommended for stripe coating and small areas. A roller can be used for small areas but isn’t recommended for the first primer coat. When using a brush or a roller extra care must be taken to achieve the specified dry film thickness.

Pros & Cons of Jotun Jotamastic 87

– Surface Tolerant
– High Solids and High Build
– Long Lasting Protection
– Can be applied at sub-zero temperatures

– Need to Mix Both Parts
– Needs to be used within 2 hours of being mixed at 23 ºC (this reduces to 1 Hour if using winter grade version)

Costs of Jotun Jotamastic 87

Jotun Jotamastic 87 would normally cost between £12 and £14 per litre depending on the amount purchased. Buying a 20 litre tin over against a 5 litre tin the price will decrease slightly.

Additional information

Additional information

Mixing Ratio 6 Parts (comp A) to 1 Part (comp B)
Pot Life Once Mixed @ 23ºC 2 Hours (1 Hour for WG* version)
Dry Film Thickness 150-300 µm
Wet Film Thickness 180-365 µm
Theoretical Spreading Rate 5.5-2.7 M²/L
Surface (touch) Dry @ 10ºC 18 Hours (6 Hours for WG* version)
Walk-On-Dry @ 10ºC 24 Hours (16 Hours for WG* version)
Dried/Cured for Service @ 10 ºC 14 Days (3 days for WG* version)

This information is given to the best of Jotun’s knowledge based on lab testing and experience
*WG represent Winter Grade