Jotun Jotamastic 87 Standard

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Price Range:£60.00 - £199.98
Price £60.00
Jotun Jotamastic 87 Standard

Jotamastic 87 is the two-pack epoxy mastic coating for repair and maintenance.

Jotun Jotamastic 87 is a two-pack, high solids, anticorrosive, surface-tolerant, epoxy mastic coating with abrasion resistance qualities for repair and maintenance. A high opacity paint that comes with Activator and provides long-lasting protection. Use alone as a primer, mid coat and finish coat, or in conjunction with various Jotun systems. It is ideal for use on steel where blast cleaning may not be possible, surfaces that are still moist and/or as a solution for less severe environments.

Area of Use

Jotamastic 87 is suitable for exterior metal surfaces and is ideal for a wide range of industrial structures, such as containers, bridges, railings and buildings, and interior/exterior areas of Marine Vessels. The product will also go on to previously coated metal - existing alkyd paint, epoxy, zinc epoxy and shop primer.

Exterior: Carbon Steel, Shop Primed Steel, Aluminium, Galvanised Steel, Outside Hulls, Marine Vessels, Water Ballast Tanks

Perfect for use in atmospheric and immersed environments - can be applied at sub zero temperatures. Excellent protection against salt and fresh water. Chalking can occur if finish is exposed to sunlight. Jotamastic 87 is also available with a Winter Grade Activator to allow application below temperatures of 10°c.


  • Product part of the Network Rail/Railtrack RT98 System M21
  • Certificate numbers XM92/M21-093 and XM92/M21-147
  • Low Flame Spread in accordance with EU Directive for Marine Equipment. Approved in accordance with parts 5 and 2 of Annex 1 of IMO 2010 FTP Code, or Parts 5 and 2 of Annex 1 of IMO FTPC when in compliance with IMO 2010 FTP Code Ch.8
  • NATO Approval No. 8010-99-549-5820 (5 Litres)

Technical Information


Polyamine cured epoxy mastic coating

Coverage Approximately 3 - 5.5m2 per litre
Sheen Semi-Gloss
Stock Colours Small colour range
Tintable No
VOC 236.0g/litre
Volume Solids 82%
Application Airless Spray, Brush or Roller
Drying Time Touch dry in 7 hours, Dry to recoat 10 hours, Fully cured in 7 days @ 23°C
Mix Ratio 6:1 with Jotamastic 87 Standard Comp B
Wet Film Thickness (WFT)

180 - 365 μm

Dry Film Thickness (DFT)

150 - 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.

Substrate                              Minimum                                    Recommended                         
Coated surfaces Clean, dry and undamaged compatible
coating (ISO 12944-5 6.1)
Clean, dry and undamaged compatible
coating (ISO 12944-5 6.1)
Carbon steel St 2 (ISO 8501-1) St 2 (ISO 8501-1)
Shop Primed Steel Clean, dry and undamaged shop
primer (ISO 12944-5 6.1)
Sa 2 (ISO 8501-1)


It is strongly advised to apply Jotamastic 87 Standard with an airless spray, using only brush and roller application for small areas (or stripe coatings). Roller application is not recommended for a first primer coat - see the application guide for further information. If applied at the correct film thickness to proeprly prepared steel, it is able to prevent corrosion for up to 15 years. 

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