Recent content by babouic

Dear gents, I'm working as an Anti-corrosion coating engineer, and I'm writting a Painting Specification. We may have some stainless steel to protect with a two coats painting system (High build epoxy 2*200µm). In order to properly apply this sytem we shall blast cleaned the surface with...

I suspect a salt contamination during application. If your surface has not been properly cleaned and checked for salt contamination (bresle, scm400...) before application of your epoxy zinc phosphate, you surely have a large amount of salt under your paint system.

Simalar post which may help you. Crevice factor on eng-tips.com

ASTM A380 : Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems As it is written, A380 is only related to Stainless Steel where section 6.1.11 and Annex A2 describe acid cleaning and section 5.2.1 & Annex A1 recommendation for pickling (acid descaling).

Dear G48testing. I suggest to have a look at section 5.2.1 and 5.2.2 of the ASTM G48 standard.

@drakkkko typically for riser, find here attached a quick table for tests which can be performed on neoprene. Cheers, http://files.engineering.com/getfile.aspx?folder=86cd1a4c-fb60-4076-a616-8664b77c3574&file=neoprFne.png

Glass flake is quite used to reinforced paint, by not it's not nano.

Corberg. I don't really understand what you are expecting from this forum. It seems that you had perform the pull-off test ( failure at primer), but you don't give us any value. Which type of instrument did you use ? Mechanic ? Pneumatic ? If you had perform the pull-off, you must have value...

Here under is the surface preparation recommended by Total in GS EP COR 350 Stainless steels shall be segregated, carbon steel supports for storage shall be systematicallypainted, and lifting equipment shall prevent iron contamination. Stainless steel surfaces to be coated shall be etched or...

Good afternoon asghar515 At first sight the zinc silicate coatings showed promise and answered the film thickness limitation of the silicone coatings by virtue of their ability for sacrificial galvanic protection. Also known as inorganic zinc (IOZ) coatings, they were recognized to provide...

What kind of paint you are working with ? As already said, is it a one coat system or multilayer ? We also need to know where the break occurs to have an idea of the why this happen. - Inside the paint - Interface glue/paint - Interface paint/substrate - if multilayer, interface layer/layer...

From TOTAL painting spec GS-EP-COR-352 Drinking water tank Epoxy INTERLINE 975 400microns " The Water Quality Center certificate ref: P22368/C23593/2400 Epoxy Carboguard 891 2*125 microns " Health and safety report No AWWA C210" Epoxy Cleankeep 550 cream 2*200microns " NSF certificate n° PM367...

Also What are this steel used for ? Typical Environments Im 2 / C5-M / C4 ? Is it carbon steel ? Stainless Steel ... ? What is the geometry of the steel ? ( Plate / Pipe ...)

Good afternoon. If you have a DSC you can easily know Tg. If you are looking for data, Handbook is your friend. For example PvC Handbook Cheers

Ok , so no matter what FMC or AIPLC ask for, if it's not in line with PDS of phenguard system, I should go through clarification with PPG to ask if deviation is allowed with PDS information. But regarding the guarantee, If FMC has qualified the sytem 2coats + Novolastic but PPG as qualified the...