Do i need to prime bumper?

[leslie7324]

I have bought a second hand bumper but its the wrong colour. Do i need to prime it before i spray it a different colour. The paint work is good on it.

 

[brightspark]

u can get a plastic adhesive promoting primer at paint suplies to coat first if u are back down to the plastic otherwise if coatings ok flat down and just use a high build primer then topcoat

 

[leslie7324]

I dont understand what you mean. The bumper has already paint on it. Its white and i want to paint it blue, is it okay to spray directly on after i flat it or does it need ordinary primer on it first.

 

[brightspark]

just edited post if coatings ok just flat it down and high build prime 1st then topcoat

 

[mike os]

as above

 

[W4yne]

If you don't need any repair work on the bumper I would just take the lacquer off the original paint using a very fine grade abrasive, then I would give it a spray with a couple of coats of primer followed by a couple of coats of paint then again finished off with clear lacquer.

http://a1autowise.com/Paint.aspx

I have bought a second hand bumper but its the wrong colour. Do i need to prime it before i spray it a different colour. The paint work is good on it.

 

[L'Andy]

As advised in other posts prep and prime before top coat, to get the best result. If you are just after a quick and cheap tidy up, you could get away with flatting with fine abrasive (600 or finer) then apply topcoat, although any remaining abrasive marks and existing scratches will show in the topcoat. If you do this, make sure that the new paint is compatible with the existing; some paints react to each other so do a little trial before spraying everything.

The primer is an important step in the painting process. It provides a smoothing and easily flatted layer over the base that the thinner top coat it laid onto. A topcoat is also semi transparent, so it is important that the correct colour primer is selected, assuming match to an original vehicle colour is important.

 

[paintpot]

if its a white bumper and you want to spray it blue ,flat it with 800 w/d and panel wipe it and spray it blue you will have no problem.some people look to much in to this.