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Old 01-26-2013, 06:19 AM
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John, this raises a good point, I always say,if you use ospho or phosphric acid always sand it well before you prime.when I sand I always sand the field first and the edges and body lines last by hand sometimes I forget a body line so I always sand all the lines at the same time so I dont miss any and all the edges at the same time for the same reason ..It looks to me like you may have simply missed hand sanding the lines ,its an easy enough thing to do since the cant tell just by looking at it like you can with a primer and thats why SPI says they dont "recomend" using acid products ,it's so easy to miss something even for a pro but theres so many ways a newbie can screw up using acid its just easier to completly eliminate them from the equation...Sure the job wont last a long without uing acid but it'll look good for as long as it does and without any issues
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