Painting new plastic bumper
- This topic has 24 replies, 11 voices, and was last updated 11 years, 2 months ago by .
- Posts
Well I am giong to paint a new plastic bumper, I went to my PPG dealer and got some one choice to prep the bumper, I am using deltron dbc base and 2042 clear. Now with the question my dealer gave me Envirobase ecs27 for a sealer and told me to use dt870 reducer , The p sheets don’t show using dt870 reducer, and dbc p sheet doesn’t show using the esc27 under dbc, anybody know if this is correct.
Thanks
Dt870 is the non low VOC reducer. It is probably fine to use (may be nicer to spray with actually).
As for comparability between the DBC and the sealer… You are probably fine. The low voc base (enviro) was initially being used with the DBC and global lines of sealers and clears. So in theory, it should be backwards compatible.
I hate doing anything outside if the tech sheet. My advice would be to go beyond your jobber and ask the tech rep directly just to be certain.
Thanks,
I called PPG and asked them and they said that I should not use the ecs27 as a sealer as they are not compatable with dbc base.
But this is what my ca. ppg dealer sold me. Go figure..only in Ca.Thanks.
Well take it back and get some das sealer or dp epoxy
I agree with Ding. If they confirmed it as a no, then take it back. I would also politely let your supplier know the situation…
I talked with the main store ( they have 4 stores ) and They are going to have me return the sealer and get the correct one.
Thanks for all the info !!
I have one other problem, I am painting the bumper off the vehicle, I can’t find DX814 flex add. locally, I had my friend check in Washington state and they wanted $178.00 for a pint. I can get slv814 for about $75.00 but don’t know if it will work with the 2042 clear. Anyone know where I can get dx814 at a reasonably price?
you dont need it
From what the PPG P sheet for 2042 clear states when off the car it needs a flex agent.
I was hoping I would not need it but PPG says I need to add dx814I’ve never used a flex agent in a bumper cover, even when recommended.
Be sensible and don’t try bending the piece in half after you’ve painted it and you’ll be fine.
Flex agent.. only good for motocross fenders.. and thin plastics..
Get a spray out card.. base/clear all the usual stuff..
Then try to bend it see how far it goes..p.s. it goes a long way before showing any signs of stress..
For me.. a waste of money..More important than the flex agent
prime/seal properly and you will be fine..This is what I did to my bumpers on Seat Leon Mark I
A proper flex agent does help. If you have ever sanded spiderweb cracks out of the paint on a bumper than you have seen what no flex does. With a properly flexed system the paint will not spiderweb crack. It also helps with rock chips as the paint will always stay in a rubber like state. Some of the thermoset polyurethanes have to have flex as they just move too much.
With that said the paint will not fall off the bumper, and most high end clears will be flexible enough for you to get it back on the car with no issues. If you bump something in a parking lot it may not hold up as well.
At what stage do you apply the flex agent? Is it mix with the base coat?
It goes into any primer, sealer and clear that is on plastic part. Also hardener is required in the basecoat if using a solventborne basecoat.
I’m a few days late replying to this but I’d never thought about that aspect Ryan. Makes perfect sense.
Mind you, I make a decent living out of repairing bumpers with star cracking from minor impacts, so maybe I should carry on advising against flex agents :lol1
- You must be logged in to reply to this topic.