A two component surface tolerant, glass flake reinforced, abrasion resistant, high solids epoxy mastic coating which may be applied in high film thickness. Available with different hardeners for varying substrate temperatures, Standard (Std) and Wintergrade (WG). This product is a part of a complete system which is certified not to spread flames.
Steel where blast cleaning may not be possible and on hydro jetted surfaces still being moist where gloss and colour retention is of minor importance. Can be used alone or in combination with various systems of primers and topcoats. Gives excellent corrosion protection both in salt and fresh water. If exposed to sunlight chalking may occur. Glass Flakes improve abrasion resistance and general wear and tear characteristics.
Film thickness and spreading rate Std Comp. B |
Minimum |
Maximum |
Typical |
Film thickness, dry (µm) |
200 |
350 |
250 |
Film thickness, wet (µm) |
250 |
440 |
315 |
Theoretical spreading rate (m²/l) |
4 |
2,3 |
3,2 |
WG Comp. B Film thickness, dry (µm) |
Minimum
200 |
Maximum
300 |
Typical 250 |
Film thickness, wet (µm) |
285 |
430 |
360 |
Theoretical spreading rate (m²/l) |
3,5 |
2,3 |
2,8 |
35ºC ± 2 (Setaflash)
31ºC ± 2 (Setaflash)
170 gms/ltr UK-PG6/23(97). Appendix 3
Gloss Semigloss
*Measured according to ISO 3233:1998 (E)
Hong Kong rules:
Category of paints - Other vessel coatings; VOC 250 gms/ltr HK EPD method (Ready to use); Exempt compound - N/A; Specific gravity: 1.41 (A+B); Both VOC and Specific gravity values provided are typical values, subject to changes when different colour involved.
All surfaces should be clean and free from contamination. The surface should be assessed and treated in accordance with ISO 8504.
Cleanliness: Power tool cleaning to min. St 2, mill scale free (ISO 8501-1:2007). Improved surface treatment (blast cleaning to Sa 2½) will improve the performance. In case of waterjetting the flash rust degree shall not exceed M (moderate) in SSPC and NACE standards for waterjetted surfaces.
Clean, dry and undamaged approved shopprimer.
Clean, dry and undamaged compatible primer. Contact your local Jotun office for more information. For maintenance UHPWJ to WJ2 (NACE No.5/SSPC-SP 12) or Power tool cleaning to min. St 2 for rusted areas
The coating may be used on other substrates. Please contact your local Jotun office for more information.
The temperature of the substrate should be minimum +10°C (Std) (-5°C in WG) and at least 3°C above the dew point of the air, temperature and relative humidity measured in the vicinity of the substrate. Good ventilation is required in confined areas to ensure proper drying.
Hydrojetting of steel surface makes a wet surface. The surrounding air must have a relative humidity not exceeding 85
%. Before painting the surface shall not be glossy with moisture, but can have a patchy appearance.
6:1
4:1
Mixing 6 parts Comp. A (base) to be mixed thoroughly with 1 part Jotamastic 87, Std Comp. B (curing agent).
4 parts Comp. A (base) to be mixed thoroughly with 1 part Jotamastic 87, WG Comp. B. (curing agent).
10°C: 4 hours, 23°C: 2 hours, 40°C: 1 hour
1 hour
Thinner/Cleaner Jotun Thinner No. 17
Pressure at nozzle 15 MPa (150 kp/cm², 2100 psi).
Nozzle tip 0.63-1.09 mm (0.025-0.043")
Filter Filters to be removed prior to spraying.
Too much solvent results in lower sag resistance and slower cure.
If extra solvent is necessary, this should be added after mixing of the two components.
Drying times are generally related to air circulation, temperature, film thickness and number of coats, and will be affected correspondingly. The figures given in the table are typical with:
Good ventilation (Outdoor exposure or free circulation of air)
Typical film thickness
One coat on top of inert substrate
Std Comp. B Substrate temperature Surface dry Through dry Cured Dry to recoat, minimum |
10°C 18 h 24 h 14 d
24 h |
23°C 7 h 10 h 7 d
10 h |
40°C 2 h 4 h 2 d
4 h |
||
Dry to recoat, maximum 1 |
- |
- |
- |
||
WG Comp. B Substrate temperature |
-5°C |
0°C |
5°C |
10°C |
23°C |
Surface dry |
24h |
18h |
12h |
6 h |
3,5 h |
Through dry |
80h |
44h |
26h |
16 h |
6 h |
Cured |
21d |
14d |
7 d |
3 d |
2 d |
Dry to recoat, minimum |
80h |
44h |
26h |
16 h |
6 h |
Dry to recoat, maximum 1 |
1. Provided the surface is free from chalking and other contamination prior to application, there is normally no overcoating time limit. Best intercoat adhesion occurs, however, when the subsequent coat is applied before preceding coat has cured. If the coating has been exposed to direct sunlight for some time, special attention must be paid to surface cleaning and mattening/removal of the surface layer in order to obtain good adhesion.
The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, underlying paint system, requirement for early handling and mechanical strength etc. A complete system can be described on a system sheet, where all parameters and special conditions could be included.
Typical paint system |
||
Jotamastic 87 GF Hardtop AS/XP |
2 x 250 µm 1 x 50 µm |
(Dry Film Thickness) (Dry Film Thickness) |
Other systems may be specified, depending on area of use
The product must be stored in accordance with national regulations. Storage conditions are to keep the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.
Handle with care. Stir well before use.
18.7 litre unit: 16 litres Comp. A (base) in a 20 litre container and 2.7 litres Jotamastic 87, Std Comp. B (curing agent) in a 3 litre container.
20 litre unit: 16 litres Comp. A (base) in a 20 litre container and 4 litres Jotamastic 87, WG Comp. B (curing agent) in a 5 litre container.
Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and medical attention sought immediately.