Jotun Epoxy Paint (Penguard Topcoat) June 19, 2008
Posted by admin in : Marine Paints, Recommendations , 1 comment so farI’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….
Great Painting Tips recommends - Berger Pathmasta April 15, 2007
Posted by admin in : Colour Chart, Painting Tips , add a comment
This is a perenial favourite as far as floor paints are concern. The Berger Pathmasta is a modified polyurethane coating that is tough and hard wearing. It is designed for use on cement and concrete floors where heavy foot traffic is expected. I tested the drying time of the paint, since drying time is an important consideration for floor coatings. I applied a single coat on a concrete surface at 30 degree C. It was touch dry in slightly over half an hour. About another half hour later, it was no longer tacky. According to the specifications, it can be overcoated after 12 hours at 35 degree C, or after 24 hours at 25 degree C. Theoretical coverage is at 7.0 sq m per litre per coat. Dry film thickness is about 50 microns. You should build up the film thickness to 100 microns (2 coats) where possible. Otherwise, one coat may just be slightly better than being cosmetic. Click on the picture on top to view the colour chart. It is available in 10 colours - White and Black included. Pathmasta is semi-gloss and comes in 1-litre and 5-litre packings. Please refer to the Price Reference page for the latest prices for the 2 sizes. Product Specifications
