perfection 709 paint

[ccscott49]

Help chaps and chapesses!
I need to know about brushing and rollering Intenational perfection 709 paint, cant seem to find a website for queries, do they do a speciaql brushing thinners? Whats the ratio of thinners for hot climates (meddy) etc, can anybody point me in the right direction or know anything about this paint? Thanks,

 

[Jake]

Hi Englander

I did a three-part series on using this paint in PBO. See issues 465 (September 2005) for preparing to paint ( sanding back, filling etc).

466 (October 2005) undercoating and 467 ( you guessed, November 2005) for topcoating.

Pricey, but excellent stuff. You need a special thinner, number 9 and try and avoid the heat of the midday sun. It dried very quickly, but can be slowed up with a max of 10% thinners. The ratio of pigment to curing agent remains fixed at 3:1 ( although recent formulations are now 2:1.)

Best way to use it was to roll on, and then'tip off' with a brush, making this a good two-man team effort. (One rolls, one follows with the tip-off brush.) A good technique is to start rolling the next section a few inches beyond the wet edge, and then work back so the roller dumps some paint first.

It's all in those back issues! Also, International do a very good (free) CD on how the whole process works. Available from their tech department in Southampton. Info on www.internationalpaint.com

Cheers

 

[Pasarell]

International website is www.yachtpaint.com and phone number is 02380 226722.
Ideal temperature for Perfection is 15 - 20C. Above that you get a shorter pot life so need to work pretty quickly but you can add a little Thinners 9 to make it work more easily.
Planning and organisation is critical with 2 packs. Make sure you can just keep going through the job until you reach a natural join (eg corner of transom on topsides) and don't let anything stop you part way through as the wet edge will go leaving a visible line.
Best way is one person putting the paint on with a brush or roller and other person laying off (once only) with a good quality brush. You will be amazed how brush marks flow out if you leave them alone. Some people swear by a roller for the finish but I've never got a good result with one.
Important to plan the work when humidity will be low for 12 hours or so after application. High humidity will really knock the gloss off the finish.
Very satisfying if you get it right and if you don't, wait for overcoating time and put right the mistakes with next coat!

 

[Grajan]

All the info given to you has been excellent providing the hull temperature is as reccommended
On cold crisp mornings the hull might not be up to temperature until after mid day which leaves a very short window in which to apply the coating
2 pack poly, when retarded by a temperature drop, will never reach its designed hardness leaving it prone to fender rub
be sure to dry off hull prior to painting as sometimes there can be a microscopic layer of moisture that cannot be seen!
Heating the inside of the hull can assist hull temp but be sure to open all locker doors to prevent cold patches forming on the hull which could lead to a patchy finish or blooming
Working with two brushes can make application easier, have one sitting in solvent until the first one gets "claggy" clean off and insert in thinners then start with the other brush (after drying off thinners) and repeat process as and when required
when adding thinners dont judge the percentage you are adding, measure it!!!

 

[ccscott49]

Fantastic answers! Thanks very much chaps, I'll get it organised, humidity shouldnt be a problem, heat may be, but if I wait until Feb, should be fine. I intended to use the roller, de-nibbing brush, so at least I got that right! Any ideas of covering power, IE litres per Sqmeter?

 

[Pasarell]

International say 12 sq m / L. That will be theoretical so allow a little more than that as you will have some wastage. Probably 10 - 15%

 

[ccscott49]

Thanks again!