Helipad SLK clinics Heilbronn
You do not simply coat a helipad every day, which is exposed to extreme conditions and contributes to saving people. Pilots have to be in a position to safely land with their patients on board in any weather conditions. The right coating thus helps the rescue-pilots to land despite adverse weather, to keep an overview and to drop off the injured safely.
The implementation
Problem:
- The landing site will be heated for the first time
- The helicopter usually does not land in parallel with both skids and so an enormous point pressure is produced which the coating has to resist
- Temperatures between -20°C to +60°C will occur
Requirements:
The challenge in mixing the fitting system was that the landing site was to be heated for the first time and temperatures between -20°C and +60°C can occur. In addition, an enormous point-pressure is produced as during landing, both skids are usually not set down at the same time. In the case of a coating being too soft, pressure marks would appear which would cause micro fissures in the sealer. These could subsequently be the start of a slow destruction.
The system build-up
Barrier primer:
VIASOL EP-210
This barrier primer without sanding completely seals-in the pores.
Primer:
VIASOL EP-210 lightly sanded witht QS 0,3-0,8 mm
The lightly sanded primer with quartz sand serves the mechanical grip for the subsequent PUR-coating
Wear coat 1:
VIASOL PU-L300V pre-filled with QS 0,1-0,3
The wear layer is cost efficient with a low consumption of binding agents and sands with quartz sand
Wear coat 2:
VIASOL PU-L300V pre-filled with QS 0,1-0,3
The second wear layer is sanded with corundum and a granulation of 1.0 – 2.0 mm
Product properties of VIASOL PU-L300 V:
- Shore D hardness: 60 – 65
- fracture elongation: approx. 30%
- tensile strength: approx. 15 N/mm
Sealer:
VIASOL PU-S650
The sealer is weather- and colour-proof and has a great resistance against acid and lye, lubricant and fuel. The product is easy to clean.
Lining:
PORPLASTIC X990 N
The colour had to be eye-catching and luminous – thus signal red and white were used.
The pressure-resistance arises from the hardness of the sanding materials (corundum). The technical data by far suffices to satisfy the requirements for the application on a helicopter landing pad.