Tutgum Bazak

TutGum for welding

Fire retardant primer for welding and cutting metal


TutGum for welding – anticorrosive fast drying primary primer paint for ferrous and galvanized metals, fire retardant preventing the development of flame and fire in the process of fabrication (welding, cutting etc.).

Suitable as primer paint in order to prevent the development of rust involved in the process of fabrication (welding, cutting, bending etc.) Contains inhibitors and fire retarders including special chlorinated rubber resin, when the combustion is starting, chlorine gas which not allowing the fire to exist.

Examined by the Israeli Standards Institute according to standard 755 level 5 test no. 9211900051


  • The paint is ready to use
  • Anticorrosive paint preventing corrosion that devolved rapidly in the welding or cutting area.
  • The coating is strong and flexible.
  • The excellent adhesion of the primer paint to the metal surface, allows the protection of the area (of welding/cutting) against the impact of the heat, prevents the paint from burning and pill off .
  • Easy to apply with a brush, roller or by spraying
  • Dries quickly.



  • Anticorrosive primer paint provides fire protection as well, in the process of welding/cutting of steel.
  • A decorative paint, suitable as a primer as well as top paint, anticorrosive, sealer and fire retarder for the protection of steel, ferrous and galvanized metals against rust and fire.
  • Primer paint for ferrous metals including galvanized steel and black iron prior to the fabrication process (welding, cutting, bending, grinding etc.) to prevent rust.
  • To paint areas been welded and/or cut immediately after to prevent the fast development of rust in this weak areas.

Technical specifications:

  • Consumption: 200-250 gr/m2
  • Solids: 40% (standard 785 part 17)
  • % pigment in paint: 65% (standard 785 part 19)
  • Flexibility: 1 mm (Sheen) (standard 935 part 307)
  • Grinding: < 50 micron (standard 785 part 15 < 60 micron)
  • Density: 45-1.6 gm/cm3
  • Resistance to immersion in water: no bubbles, no softness, no adhesion changes (standard 935 part 312)
  • Bleeding stability: not less than level 6 according ASTM D-868 and ASTM D-969
  • Resistance to fuels and solvents: stable according ASTM D-2792-93
  • Viscosity: 5-2.5 Pa.sec (Haake) 78-92 krebs in 200 cycles per minutes after hand mix of 2 minutes (standard 935 part 302), after dilution 10% – 65 krebs. After 10 days storage in 42OC – viscosity aloud to grow max. 5 krebs.
  • Hardness: > 10 Dg (Erichsen)
  • Erosion: 120 micro film – 1050 cycle (BYK Gardner), ASTM D4060 200 mic. dry film – loos 2 grams weight to 500 cycles (the standard allows 5 grams loss)
  • Strength to pilling : > 5 kg/cm2
  • Resistance to heat 70OC: with no changes in properties or deformation.
  • Recommended layer thickness: 200-250
  • Number of recommended layers as primer: 1-2
  • Number of recommended layers as top coat: 1


  • Chlorinated rubber and special high temp. resin.
  • Iron oxide red for primer.
  • Fillers, anticorrosive pigments.
  • Special flexibility
  • Solvents and additives.
  • Fire retardants.
  • Zinc phosphate.


  • Primer – red brown, top coat – standard white, black, red , blue and more.


  • Matte < 18%, silk 30-45%, glossy 80-95% (standard 935 part 309).

Touch-dry time:

  • 15-25 (avoid over spraying) weel dry time test- (standard 935 part 2) – < 45 minutes.
  • If dust is formed while spraying add a retarder.


Drying time period betweel!l layer application:

  • 1-4 Final:  2-6 hours.

Application methods:

  • Brush, spray,
  • Mix a little, dilute with 304 as needed and spread.


  • Brush/roller: 5% – 10% D-18 thinner.
  • For slower drying and creating a surface without any brushing marks use the D-32
  • Spraying: 15% – 20% D-18 thinner 3-4
  • Airless: 0-5% 4-5 nozzle 0.015”-0.018”.
  • If the lid left open and the paint become thickly, a thinner D-21 can be add to dilute the paint before painting.

Surface preparations:

  • Black steel: Remove rust by sand blast cleaning (level SA-2.5) or by mechanical or chemical cleansing (rust remover 3000) until receiving white
  • Remove grease thoroughly with Degreazer
  • Aluminum: Remove grease with Degreazer M, etch with Antrox 14, and coat with yellow passivation with Passivator 1722.
  • Galvanized steel: Lightly polish to remove zinc salt and completely remove the galvanized shine, polish with sandpaper or a disk, after removing the shine clean the surface with Degreazer M to completely remove all (Dont wipe the surface with the same rags, avoid spreading old grease on different parts of the surface)
  • Old galvanization: Harshly polish to remove rust, lightly polish where zinc salt and shine should be removed, and remove grease with Degreazer M.
  • Strict supervision is required while preparing the surface according to the instructions, which is the costumer’s complete If the instructions will not be completely fulfilled the paint will peel.


  • 5 liter, 0.75 liter, 2.5 liter, 5 liters, 18 liters.


  • In a shaded and cool place at room temperature with proper ventilation.
  • Keep lids tightly sealed.

Shelf life span:

  • 12 months in its original

Equipment cleansing:

  • Use D-21.

Quality control:

  • In factory laboratories according to specifications.
  • COA and COC certificate.
  • ISO 9001-2008

Safety precautions:

  • Inedible, keep away from the reach of children.
  • Flammable – keep distant from heated areas, fires, flames, and sparks, Prohibit smoking in working area.
  • While applying, good air ventilation is important. In case there is not enough air, use ventilation according to the ventilation table.
  • Wear protective glasses, gloves and suits.
  • Avoid direct contact of the paint and/or thinner with the eyes and skin. In case of contact, immediately wash thoroughly with water.
  • In case of an injury immediately get doctors assistance.
  • Read the safety instructions on the labels.
  • See M.S.D.S


  • Don’t mix the product with materials which were not recommended by us.
  • Don’t apply if the temperature is under +7°C.
  • Don’t apply if humidity is over 80%
  • When applying with Airless, do not aim it at anybody a direct hit could be fatal at pressures over 150 atm.
  • Read thoroughly the technical data of the product listed in this section; confirm that everything is understood completely, for clarification contacts our tech. department.
  • All information that is listed in this content is a recommendation merely and cannot be applied in the court of law.
  • The costumer must test & check that this product is compatible with his equipment and needs.
  • The information listed in this section is according to the laboratory conditions (temperature, humidity etc.) which the products were tested.
  • The recommendations listed do not hold any responsibility for this product.
  • Theoretical and actual coverage area are different concepts, the actual coverage is affected by the required thickness of the layers, required number of layers, painting conditions including the amount of paint which spread in the air before touching the surface.
  • The information listed in this section is based on experience and accumulating data, Denber inc., has the right to change the information listed at any time.
  • Paints that have been in stagnation or exposed to air more than needed could have their qualities changed.


  • Storage room temperature 15°C to 25°C.
  • Over Spray: An effect which occurs in the spraying of paints application. A type of “dust” is created by dry gases of the air, which causing the paint particles to fall dry on the surface (hereafter the “effect”). The impact of this “effect” becomes stronger due to over pressure and heat, (most sprayers have a lever to control the pressure) To avoid the negative impact 0f the “effect”, the pressure of the spraying should be lowered to the necessary minimum!. Another possibility is to increase the amount of the thinner in the mixture which would cause the paint particles to fall wetter on the surface.

An additional recommended possibility, to avoid this “effect”, is to add a retarder to the mixture which increases the duration period of the painting application , avoiding the paint to  dry up, and enabling it to reach the surface wetter, Thus a better painted smooth  layer is formed.

  • Pot Life: The working time which is possible to paint a mixture of two components, A+B (or more) without spoiling the qualities of the paint or disqualifying the paint as “out of use”.
  • Spray: It is possible to spray with a sprayer that has a container holding the paint that sprays it with air pressure.
  • Airless: a device with a piston which compresses the air for spraying paints. The pressure might be high (over 100atm.) Don’t aim it at anyone
  • Surface preparations: the level of cleanness is determined by international standards. Surface preparations, including cleansing sand blasting, is important & critical factor in achieving an optimal result for painting adhesion on a certain surface. These standards are equally compared to the standards of the Swiss SA, the German-Din the U.S SSPC SP For each standard in any level there are indicators, for sale, in order to make visual comparison between the cleansing of the surface and the indicator.

Quality inspection:

  • Prior to the painting on large surfaces it is important to test the product on a small area, to be sure that the paint is compatible with the level of satisfactory.
  • Laboratory testing was made according to the standards institution specifications.
  • This “Data sheet” given as noncommittal information, the product above recommended for professional painting specialists. This information is not a substitute to personal guidance.
  • You must read the MSDS safety instructions before you start working with the product.