lvluv wrote:
So, just to be clear. Today I D.A sanded all the rust off of my hood. They I sprayed it with self etching primer. I live in Vegas so Im not worred about it rusting overnight. However, when I prime the whole truck and then spray it will I have to worry about the cancer coming back?
It is considered by a lot of people to not use self etch primer anymore. Not to say it is wrong to use it. Etch primer is made to use on fresh bare metal that has not been sanded. It is old school. Those same people believe to use epoxy primer first on prepped metal. Epoxy Primer will not let moisture through to the metal. It is sealed.
The REAL truth of the matter is, IF the paint company offers metal coverters or etch primer they say use it!
Now, are they "needed" or are they only recommended because the company wants to make another sale? That is for YOU to decide.
Bondo is a hot topic too. The original Bondo was made with Talc. The same stuff that baby powder is made from. Baby powder is meant to absorb water. One of the reasons to not use it on bare metal. Their is another product in Bondo type products that does not absorb. Many body repairs have been done with bondo right on the metal. I have done that before too. I do not use bondo on any car work any more.
Modern fillers such as Evercoat rage, metal to metal work well on metal. Still some people feel that a good epoxy primer on first and then do any filler work.
I use Southern Polyurethanes on most anything I do. Great stuff. I have never heard of problems with other paints being used with SPI.
http://www.southernpolyurethanes.com/homepage.htmI have painted a lot of stuff over 30 years... Enamel, lacquer, Imron, BC/CC and other epoxy paint. Imron is one of the worst.... Nasty Stuff, hard to work with, but it you get it right it will look great. The last thing I used Imron on was my 81 VW Squareback. Yellow Factory color. Got hit in the lift gate... paint was good. Hit a tree with it, the front fender paint just buckled off the fender where it was bent... Very Tough Aircraft paint.
I miss using single stage Enamel. Too many people want a very, very bright paint. Lacquer could do that but it was a Lot of work and is solvent whore. It may not be long before you will not be able to buy Lacquer paint or solvent . BC/CC is the best now.