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Ok, I started off thinking I was going to use the Restolium Gloss White. Then the Brightside was introduced and I thought I'd use that (less coats/no thinning). Now "yellowing" has been brought up....for a gloss white paint job what do you guys recomend?

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White in any paint has a tendency to acquire a yellow tinge with age. That is why most professional painters tend to add a spec of blue tint to their 'white' to permanently ward off the yellowing. This is especially true of CHEAP LATEX white paint. But that is also more relevant to 'old' paints from the 'old days' and the chemistry of modern paints have taken steps in the chemical composition of the paints and pigments (solids) to prevent yellowing. But even moderm CHEAPER BY THE GALLON type paints may suffer from not having anti-yellowing technology in them. Heck... even the polyurathane composition of the Brightside paint would help in sealing off the ability of oxygen to get beneath the outer skin of the paint job to discolor the pigment. And even further the solids or pigments are completely encapsulated and surrounded by the polyurathane which prevents oxygen from reaching them... And lastly... Brightside is a polyurathane... ( think of a liquid PLASTIC ). I would really like to know what type of staining substance can penetrate a solid plastic barrier. It just doesn't make sense.

The 'off white' colors are usually pre-dispositioned towards 'yellowing' in that they have a pigment that gives the initial 'off white' color. I don't think that would contribute to further 'yellowing' of that 'offwhite' color because these paints are engineered to hold their initial color without fade or discoloration for as long as it is chemically feasible. As we all know.. ALL paints eventually change color - and the real comparison of good paints and bad paints is 'how long is the paint engineered to hold its initial color. In this regard I think the Brightside and the Tremclad/Rustoleum are both engineered to 'hold their color' longer than many of the other paint products out there.

The only hint of a stain would occur where a substance with a contrasting color is able to enter the microscopic pores of the paint surface. But even there the staining substance can probably be encourage to detach itself from the pore with the right washing or cleansing. And in a worst case scenario the 'pore' could be removed with a wetsanding - since those pores only exist on the outer surface and do not act like passageways through the paint..

The Brightside paints for example do have special anti-UV ingredients to prevent fade or color changes from the ultra-violet rays of the sun.

But you mentioned that 'you had heard of yellowing in areas where there was no direct sun the whites were changing to yellow. My first thought is that it is obviously not a UV problem. Hmmmm... something not exposed to the sun.. like an inside cabin... would be affected by cigarette nicotine... that would yellow a white wall... or cooking in a galley would release things into the air that would yellow the walls inside the boat if they were enclosed and painted white. Just visit my mother's kitchen to see how cooking changes the colors of her kitchens walls etc.

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