15. Coating after diffusion of water (in the thermodiffusion test) Example: Tenaxon 555CS (version 2007, epoxy, solvent-based, average layer thickness 500 µm) Outside bath temperature 40°C/inside temperature in experimental tube 10°C Time period until the first bubbles appear: 2 days
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18. Comparison of test tube test / WDD test according to DIN EN ISO 6270 (Water vapor (40°C) applied to plate, back side: air (20-25°C), layer thickness 500 µm, bubbles form after approximately 1 year in the case of ICOSIT) SIKA ICOSIT 500 SW ACOTEC HUMIDUR ML
19. Diffusion period in days until the appearance of bubbles on the coated surface in relation to the layer thickness in µm (Selection from more than 40 different tests and products until now)
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25. Advantages and disadvantages of the aforementioned products in comparison with one another: no no no yes no Allowed for drinking water R11/20/36/37/38/43/21/22/34/37/51/53/66/67/ R10/11/20/21/22/34/36/37/38/43/51/52/53/66 R34/43/20/22/36/38/43//51/53 R21/22/23/24/25/34/36/38/39/43/45/48/51/52/53/68/ R45 carcinogenic R groups / >15 >20 >20 >20 Adhesion strength N/mm2 90-120 poor 125 µm 450 µm VOC 130g/l 45 ++ Interzone 954 4/1vol 45 good / 450 µm VOC 28g/l 21 ~0 EPITER TF 130 4/1weight very poor 125 µm 450µm VOC168g/l >40 ++ Ceram-Kote54 6.7/1weight >90 ++++ (for 300 µm 35days.) 20 ~ Diffusion resistance in days for 500-600 µm 30 very good 40 good Processing Pot life at 18°C in min Manual processing / 350 µm / 370 µm Max. layer thickness Min. layer thickness none none Solvent content Aquapure HR 1/1 Humidur ML 1999 5/1weight
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