I resprayed my engine compartment in PPG DCC 9300 with their matting agent for the second time as it came out too flat the first time. I adjusted my ratios and this time it appeared to come out with the sheen just right, but I had some dry spots.
I waited about 4 hours (what the tech sheet said for pot life) to get a good read on the sheen, I had 14 ounces left, I mixed up 7 more in the same ratio, mixed all 21 of the ounces together into the gun.
Sprayed a real wet coat, as I didn't want any repeat of the dry spots. Now 4 hours later it is still way too shiny.
Tech sheet for the 9300 says the recoat window without a scuff is 8 hours. What are the odds the sheen will change much in the next 3? Do I really have more that 8 hours to recoat?
Is it staying shiny extra long because of the wet coat, and will it eventually die down? Or did sitting the four hours permanently lower the effectiveness of the matting agent. I did stir it extra good, and it did n't look any different that the freshly mixed paint when I combined them.
I waited about 4 hours (what the tech sheet said for pot life) to get a good read on the sheen, I had 14 ounces left, I mixed up 7 more in the same ratio, mixed all 21 of the ounces together into the gun.
Sprayed a real wet coat, as I didn't want any repeat of the dry spots. Now 4 hours later it is still way too shiny.
Tech sheet for the 9300 says the recoat window without a scuff is 8 hours. What are the odds the sheen will change much in the next 3? Do I really have more that 8 hours to recoat?
Is it staying shiny extra long because of the wet coat, and will it eventually die down? Or did sitting the four hours permanently lower the effectiveness of the matting agent. I did stir it extra good, and it did n't look any different that the freshly mixed paint when I combined them.
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