Jotun Epoxy Paint (Penguard Topcoat) June 19, 2008
Posted by admin in : Marine Paints, Recommendations , trackbackI’ve been asked on many occasions to recommend good epoxy paints for concrete floors. I can name a few from past projects, such as Ameron’s
Amerlock 400, Berger,s Epilux 218 and Nippon’s Copon EA4. I have added another to my range. I do that when a product solves a problem I have. For Amerlock, it was its surface-tolerance. For Epilux 218, it was its sheen. For Copon EA4, it was its stock availability. Jotun Penguard Topcoat qualifies for its performance and colour. I’ve seen completed projects and results are usually quite good. Also, most colours in the RAL range, the BS range and the NCS range can be produced. For the uninitiated, that’s easily a thousand colours.
Jotun Penguard is a two-pack epoxy topcoat based on a polyamide-cured epoxy resin. In other words, it is an epoxy base with a polyamide curing agent. Epoxies are heavy-duty coatings and are much more lasting than conventional coatings such as alkyd paints. When fully cured, which takes about 3 days for this product at 35 degress Celsius, it is very hard and tough. It is resistant to water, chemicals, oils and many types of solvents.
Some Technical Details
Penguard has a volume solid of 50%, DFT of 50 microns when dry and 100 microns when wet, a theoretical coverage of 10sq m per litre, dries in 4 hours at 35 degrees Celsius and can be re-coated after 3 hours. Like I mentioned earlier, it only becomes fully cured after 3 days. Pot life is 8 hours at 23 degrees. I suppose it gets reduced to about 1 - 2 hours at 35 degrees. It is a good practice to always do the mixing of any 2-pack products in a very cool place so as to prolong the pot life. Remember never to mix more than you can paint on. Once mixed, 2-pack products cannot be kept longer than the pot life.
Priming
On concrete flooring, besides the standard surface preparation, I would recommend priming with Jotun Penguard Primer. The primer is white in colour and can be top-coated in 2 hours (assuming 35 degress Celsius and good ventilation).
Colours
Penguard Topcoat is available in its standard 40 colours (see colour card here), and can also be tinted to over a thousand colours from the BS, RAL or the NCS range. Some colours, especially the dark ones, cannot be reproduced. So, please check first. Price Depending on whether it is a standard colour or a premium colour, the price ranges from $60 - $80 per 5-litre set (this consists of a 4-litre base and a 1-litre curing agent)
Let us talk about Natural Color System or NCS next time we meet….
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