Replies

1. 
   alias | Nov 19, 2007 03:47am | #1

   yes , but i spray more than swing the brush, and add penetrol and assumed that was the problem. . i have found that the longer the paint sits aound with the additives for spraying the darker it gets, i switched to a mixer you attach to a drill and mix the bejesus out of it , and tinted the the mineral spirits to a milky white and have have good results. also use a small amount of the tint and mixed with the paint if it sits for awhile (a month). again give it a good mix before every application. The one thing that gave me pause is over time does that impede the finish from the weather. i called and asked the producer and they said the didnt feel that would be a problem. So far so good.........
2. 
   jackplane | Nov 19, 2007 03:49am | #2

   BM is right. This is a common problem for all oil based paints since they replaced the lead with titanium. Color retention/fading happens without light exposure.

   Hopefully it's not a big area to paint. Best thing is to use a good BM or other latex.

   Expert since 10 am.

3. 
   rez | Nov 19, 2007 06:09am | #3

   General Discussion -  Oil Based Paint Problems

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   From:  rlrefalo   8:16 pm  To:  ALL  (1 of 1)    97266.1      Thanks for the responses, guys. I know that oil has always yellowed, but this is really blotchy, with patches of brighter white adjacent to dark yellowing on the same door. The job was a gut renovation , so lots of trim and many doors are involved. According to BM the satin impervo we used has zinc in it and is sold as a rust inhibitive paint in gallon cans to get around VOC regulations. The old formulation is available only in quarts. (NJ) Sure seems to me BM has some responsibility for selling a paint that, in my opinion, is clearly poorly formulated .     View Image Options  View ImageReply

    

1. 
   rlrefalo | Nov 19, 2007 06:30am | #4

      Thanks for moving this message to where it should have beeni in the first place. New to this posting stuff.

1. 
   rez | Nov 19, 2007 06:31am | #5

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4. 
   brucet9 | Nov 19, 2007 07:08am | #6

   Alkyd paints do yellow with age, but they will yellow evenly and it takes a while (usually weeks or months) for yellowing to show up. Your description of blotchy yellowing on a recent job suggests something else is going on.

   Was the substrate repaired and spot-primed by any chance? If so, your blotchiness might come from incomplete hiding. Paint can seem to hide substrate color/brightness differences when wet but after drying, when the film has shrunk, they show up again.

   BruceT
1. 
   rlrefalo | Nov 19, 2007 07:15am | #8

       Job was sprayed, over primer , BM doesn't say it was an application issue. They even state on the label that it may yellow.  The real problem is the severity of the yellowing. Seems to me they shouldn't be selling a product they are unwilling to back up. But I'm just the lowly customer.

5. 
   restorationday | Nov 19, 2007 07:15am | #7

   What kind of wood is the paint on? New wood? Old wood? What primer did you use? BM enamel underbody primer? Could there be something bleeding through the paint from the wood? How did you apply it? Did you remix the paint everyday before use?

   Reason I ask is that I have used about 20 gallons of that stuff a year for the last 4 or 5 years and only once had that problem. It was an issue of freshly milled wood that was not dried properly and still had sap in it that bled through (the species escapes me at the moment).

   -Day

1. 
   rlrefalo | Nov 19, 2007 07:22am | #9

      BM says this is a common occurence in dark areas, such as inside closets, etc.They also state latex base paint outgassing (ammonia) can cause yellowing.