Primax Industrial Paints

Primax Boiler Paint No 1

  • High quality protective coatings
  • Used for the interior boiler surfaces
  • Provide maximum protection to steel surfaces
  • Used in all kind of industries
  • Prevents corrosion and rusting

PRIMAX BOILER COMPOUND NO. 1 is Bituminous vehicle containing amorphous carbon pigment.

A unique, specially formulated composition designed as an anti-corrosive coating for metal surfaces in continuous contact with hot water and steam above 93°C (200°F). It is particularly suited for the internal lining of steel boilers, steam pipes and hot well tanks. A regular maintenance schedule during shut down periods is necessary to ensure the log term performance of the coating. The product has been demonstrated to improve the heat transmission efficiency of coated surfaces, with real energy saving benefits.

Volume Solids

54% ± 2% (ISO 3233)
Covering Capacity
Theoretical: 13.5 m2/litre at 40 microns
Dry film thickness.
Recommended Film Thickness
40 microns dry:74 microns wet (per coat)
Mixing Ratio
Not applicable – single pack.
Pot Life
Not applicable.
Shelf Life
24 months, stored under cool, dry conditions in original, unopened packs
Drying Time
Drying time will depend on temperature and ventilation conditions. The following are given as a guide at 15°C. They may be doubled at 7°C.
Touch dry: 6-8 hours.
Hard dry: Only achieved after maintaining water/steam temperature above 100°C for 5 hours.
Over coating Interval
Minimum: 8 hours..
Heat Resistance
Withstands continuous contact with water or steam between 93°C and 540°C
Flash Point: 40°C
Colour: Black.
Clean equipment thoroughly immediately after use with Primax Thinner .
Finish: Matt.
VOC: 357 g/litre. (ISO 11890-1)
Surface preparation
Remove grease, oil and other contaminants. Special care must be taken on weld areas to remove flux and spatter. Welds and joints should be prepared by grinding in accordance with EN 15879-1. Blast clean to a minimum standard of cleanliness Sa 2 1/2 BS 7079: 1989 (ISO 8501-\: 1988). Surface profile Rz should not exceed 100 microns (0.004 in.). If blasting is not practical, make full use of mechanical tools, manual chipping and wire brushing to remove rust and scale to achieve preparation standard St 2 BS 7079: 1989 (ISO 850I-I: 1988). Excessive burnishing of the steel should be avoided. Remove all dust and debris from the surface, which should be coated before contamination can occur. Existing Boiler paint No.1 coated surfaces should be clean, dry and free from dirt, oil, grease, scale or other contamination..

Application methods
Primax Boiler Compound No.1 should only be applied to clean metal or sound previous coats of itself. Three or more coats are required for full protection of steel, and at least two coats for the maintenance painting of surfaces previously coated with the product. Stir thoroughly before use, addition of thinner is not normally necessary.
This product is intended for brush application only, a minimum of two coats should be applied. Work the first coat well into the seams, bolts, etc. Since drying primarily occurs by solvent evaporation, good ventilation must be provided.
Surfaces coated with Primax Boiler Compound No.1 should not be exposed to weathering. Do not apply when relative humidity exceeds 90% and condensation is likely. Drying will be retarded below 4°C and painting should be stopped until temperature rises. Only apply coating when metal temperature is 3°C or more above dew point. When conditions approach these critical limits the use of heating and dehumidification equipment is essential if application is to continue. Loss factors based on the nature of the surface and the chosen application method should be applied to obtain a practical covering capacity.
Do not vary recommended dry film thickness without written confirmation.
Drying time
Drying times are generally related to air circulation, temperature, film thickness and number of coats, will be affected correspondingly.
* Good ventilation (Outdoor exposure or free circulation of air)
* Typical film thickness
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.
Packing size
4 liters unit.
Health and safety
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.
For detailed information on the health and safety hazards and precautions for use of this product, we refer to the Material Safety Data Sheet.
The information in this data sheet is given to the best of our knowledge based on laboratory testing and practical experience. However, as the product can be used under conditions beyond our control, we can only guarantee the quality of the product itself. We also reserve the right to change the given data without notice.

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