Low-cure powder coatings as an energy-efficient alternative
The prices for oil, gas and electricity are currently reaching record levels, putting the discussion around saving energy in a new light: in private households as well as in industry, because low energy consumption offers not only ecological aspects but above all economic advantages for companies.
The good news is that also in powder coating savings can be made! For this reason, energy-efficient low cure powder coatings are increasingly gaining acceptance alongside classic powder coatings, which are usually cured at approx. 180 to 200 °C.
As the name suggests, low cure powders require a significantly lower object temperature for coating. Depending on the design, as little as 140 °C may be sufficient. Alternatively, the curing time is shortened if the standard temperatures are used.
Their properties allow low-cure powder coatings to significantly improve manufacturing processes in terms of sustainability and productivity. Lower temperatures in the curing oven mean less oil, gas and/or electricity consumption. This also reduces CO2 emissions, which are known to contribute to global warming. The user, in turn, benefits from accelerated turnaround times as objects reach the desired temperature faster.
Comparison of curing conditions
The graph below shows the time and temperature range in which low-cure powders can/should be baked.
In comparison, the next diagram shows the recommended baking conditions for regular powder coatings and illustrates how much the products differ in terms of baking temperature and time.
Efficient coating of massive components is only possible to a limited extent at high stoving temperatures above 180 °C. Low temperature cure powders make it possible to finish even these complex surfaces economically and sustainably.
This is particularly relevant for the following industries:
- garden fences
- machine parts
- steel structures
Agricultural & construction machinery:
- forestry equipment
- earth-moving machinery
In addition to the low temperature aspect, this industrial sector places high demands on weather resistance and corrosion protection of the surface. Low cure powder coatings also meet these requirements.
- TIGER Drylac® Series 40
In addition to their low cure properties, products from this series can also be outgassing forgiving. This allows surface disturbances to be prevented when painting hot-dip galvanized workpieces, castings or base steel alloys.
- TIGER Drylac® Series 280/281
These products are characterized by their weather resistance. TIGER Drylac® Series 280 is listed as "weather resistant" (durable), Series 281 as "highly weather resistant" (super durable). Optimized edge protection, high corrosion resistance and good mechanical properties combined with smooth leveling are particularly convincing to manufacturers of equipment for outdoor use.
- TIGER Drylac® Series 271
Steel, as the most widely used metallic material, is used wherever strength and robustness are required. With TIGER SHIELD, TIGER has developed a system that permanently protects steel and galvanized substrates against corrosion. The 271 Series primer is especially suitable for low-temperature cure coatings.