To achieve long-term protection of your thermal sprayed coating, it is important that the sealer penetrates deeply into the TS layer. Sealers that only adhere to the surface or penetrate minimally will be removed along with the TS layer during finishing or after a few hours of operation. The remaining layer is unprotected and thus susceptible to e.g. corrosion damage.
In cooperation with the Institute of Surface Technology (IOT) at RWTH Aachen University, we have succeeded in developing a fast and cost-effective detection method for the penetration behavior of sealers into thermally sprayed coatings. We use this method to ensure that our sealers really work in interaction with your TS layer and the respective process parameters and deliver lasting performance.
With the new DIAMANT penetration depth function test based on permeability measurements it is possible to get a clear statement about the penetration depth of the sealer. This helps us to develop a sealer that perfectly matches your specific coating, penetrates the complete TS layer and guarantees maximum performance!
Subsequently, a joint detailed analysis of your specific layer sealer system will be performed with our managing director and test developer Dipl.-Ing. Carsten Kunde.
Feel free to contact us and maximize the performance of your layer sealer system!
Mr. Carsten Kunde
Phone: +49 (0) 2166 – 98360
Telefax: +49 (0) 2166 – 83025
For the test, we use special carrier bodies made of sintered metal. These carriers are coated by you with your spray parameters and thus represent a 100% suitable, practical laboratory sample of your TS coating. We measure the coated specimens and apply the sealer in our laboratory. The specimens are then ground step by step and the permeability of the carrier bodies is determined. The penetration depth of the sealer correlates with the measured permeability and can thus be clearly determined for each sample.
INITIAL SITUATION:
HVOF – WC coating with 200 µm layer thickness
Existing sealant 4h curing at RT, solvent-based sealant
DIAMANT solution:
Solvent-free sealant, 2h curing at RT without heating
RESULT:
– Increased penetration depth
– Time saving
– Environmentally friendly, as without VOC
INITIAL SITUATION:
APS – Al203 coating with 1.000 µm layer thickness
Existing sealant 1h curing at RT + 1h at 150°C
DIAMANT solution:
Application at 30 – 50°C, curing 4h RT
RESULT:
– Increased penetration depth
– Cost and time savings due to curing without heat treatment
DISCOVER OUR DICHTOL PRODUCT RANGE
DIAMANT Polymer GmbH
Marie-Bernays-Ring 3a
D – 41199 Mönchengladbach
Phone: +49 2166 9836-0
Fax: +49 2166 83025
Our offer is aimed exclusively at entrepreneurs and tradespeople.
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