Steel beam coated with a zinc dust formulation based on Dynasylan® SIVO 140. The coating was applied with a HVLP spray gun.
Steel beam coated with a zinc dust formulation based on Dynasylan® SIVO 140. The coating was applied with a HVLP spray gun.
Many bridges are protected against corrosion by painting with zinc dust paints. The Dynasylan® SIVO 140 binder makes these paints more eco-friendly and particularly effective.
Many bridges are protected against corrosion by painting with zinc dust paints. The Dynasylan® SIVO 140 binder makes these paints more eco-friendly and particularly effective.
Exhaust pipes made of carbon steel have to withstand high temperatures and can also be treated with a corrosion protection paint based on Dynasylan® SIVO 140.
Exhaust pipes made of carbon steel have to withstand high temperatures and can also be treated with a corrosion protection paint based on Dynasylan® SIVO 140.
There are many applications such as pylons where steel constructions and the environment can be protected with corrosion protection formulations based on Dynasylan® SIVO 140.
There are many applications such as pylons where steel constructions and the environment can be protected with corrosion protection formulations based on Dynasylan® SIVO 140.
Coatings in marine and offshore areas need to protect metal surfaces against corrosion and weather in highly demanding environments. Dynasylan® SIVO 140 is the binder of choice for water-borne zinc dust paints that protect against an array of unfavorable conditions, such as extreme temperatures, humidity, salt and UV radiation.
Coatings in marine and offshore areas need to protect metal surfaces against corrosion and weather in highly demanding environments. Dynasylan® SIVO 140 is the binder of choice for water-borne zinc dust paints that protect against an array of unfavorable conditions, such as extreme temperatures, humidity, salt and UV radiation.
Corrosion inhibition primers based on Dynasylan® SIVO 160 are particularly suitable for protecting materials like aluminum, magnesium, and zinc-galvanized iron or steel against corrosion.
Corrosion inhibition primers based on Dynasylan® SIVO 160 are particularly suitable for protecting materials like aluminum, magnesium, and zinc-galvanized iron or steel against corrosion.
Rust, oil and dirt are removed by shot blasting followed by spray application of the corrosion protection paint.
Rust, oil and dirt are removed by shot blasting followed by spray application of the corrosion protection paint.
Innovation

No chance for corrosion

The global cost of corrosion is enormous and equivalent to 3.4% of the Global Gross Domestic Product (GDP, 2013) (Source: NACE international), thus causing a major interest in new corrosion protection systems and the necessity to control and reduce metal corrosion.

Corrosion causes huge global cost

Corrosion generates immense costs throughout the world and poses a real problem for bridges, machines, and buildings, whether of metal, concrete, glass, or plastic; in all of these materials it is a serious problem. As long as eight years ago, DECHEMA, the Society for Chemical Engineering and Biotechnology, estimated annual global losses due to corrosion at an astounding 1.8 billion euros. However according to DECHEMA appropriate protective measures could save 25 to 30 percent of these costs, amounting to between 450 and 540 billion euros every year.

ALTERNATIVE AND SUSTAINABLE METHODS

Reducing VOC is a main requirement from the market, and in many countries there are also legislations restricting the use of VOC in coatings. The treatment with chromium (VI) is already prohibited in some application areas because chromate (CrVI) has been identified as a human carcinogen. Also other established surface processes like phosphate pre-treatment are under discussion, since aggressive media and chemicals with high environmental impact are used. Corrosion protection systems containing organic solvents are discussed as environmentally harmful and should be replaced by water-borne systems. In some cases there are alternatives available and promising candidates are water-borne silane systems. They are used as binder or component in corrosion protection formulations and are considered as forward-looking solutions.

Dynasylan® SIVO 140 for two pack zinc dust paints

The innovative water-borne silane formulations based on Dynasylan® SIVO 140 are designed for a better compatibility with additives and fillers. Such formulations can be applied with a different film thickness at the substrate. The curing time depends on the formulation (type and amount of fillers and additives used) and the applied wet film thickness.

The advantages of Dynasylan® SIVO 140 can be summarized as follows:

  • Almost zero VOC
  • Low temperature curing
  • Low or higher film thicknesses are possible
  • Improved heat resistance compared to organic binders


Dynasylan® SIVO 160 for blank corrosion protection of aluminum alloys and HDG steel

In some cases it is necessary to protect the blank aluminum surface against corrosion, which can happen in the presence of e.g. chloride. Water-borne silane systems based on Dynasylan® SIVO 160 can be used in such applications. Very thin layers in the range of 100 – 200 nm can prevent the corrosion of aluminum. In contrast to the current solutions employed in this area, the binder contains neither heavy metals nor fluorides, which are highly objectionable from an environmental viewpoint.

The benefits of Dynasylan® SIVO 160 at a glance:

  • Almost VOC-free
  • Excellent wetting effect
  • High reactivity with aluminum surface
  • Organofunctional group can react with subsequent topcoat
  • High crosslinking density preventing water and chloride penetration

MORE INFORMATION ABOUT DYNASYLAN® SIVO 140

FURTHER INFORMATION