painting with rattle cans.

[Trev3635]

A couple of things here.

I have just finished painting a section of wheel arch. Filled, primed and base coated. Then i have sanded it with 1500 grit and polished with G6 cutting compound which has brought it to a brilliant shine.
I have ended up with an edge between the new and old paint and cant seem to blend it in properly, and also do i need to sand the new paint again with 1500 before i apply the clear coat?

Thanks in advance.

 

[steveo3002]

sounds like youve gone about it the wrong way

repair the damage and prime

sand the primer with 800 wet and key the surrounding area with a grey scothpad or 1200

basecoat over the primer until its covered , then for the last coat flick away the paint so it fades away into the original colour

do not sand the base coat

as soon as the base is dry...say 20 mins , straight on with the clear coat , id suggest you clear the whole panel , but if you wish to clear part of it disolve the clear edge with blending thinners

 

[Trev3635]

ok thanks for the advice. So now that the base is dry it will be left overnight is there no sanding required before clear goes on? Bearing in mind this is all spray cans.

 

[steveo3002]

so youve got the basecoat that you polished /sanded etc ?

if so id mist a new coat on in the morning , fade it out as i say , then clear coat it as above

make sure everything you plan to paint on is keyed up properly

 

[Trev3635]

Marvellous thankyou i'll try that in the morning and let you know how i get on. Probably be back with more problems!

 

[steveo3002]

yep no problems ..ask if you are unsure

its alot easier when you do it the right way

 

[Trev3635]

ha ha it's a lot easier if you know what you're doing you mean! Did'nt get round to it today cos of work but i'll try and get to it tomorrow and with some pics.

 

[jlloyd]

hi sorry to hijack the thread but would you apply the blending thinners to the clear coat when it is dry or just after applying it as ive used it before and messed up at the last hurdle.

 

[steveo3002]

blending thinner is a bit tricky to use well

theres 2 ways you can do it if you have a spray gun

once youve sprayed up to where you wish to lose the edge(while still wet) , tip most of the clear away and add some thinners and shake it so you have really thin clear , turn down the pressure a bit and mist it over the edge , then tip that lot out of the gun and use neat thinner to mist over the edge ...you should see edge melt away

other way or with rattle cans you will just need to thinners over the edge carefully , remember thinners will run easily so its just a carefull mist , stand back and mist more on after a while if theres still a dry patch

chances are it wont look perfect , let it fully harden for a good while and then a gentle hand polish should have it looking good

this blended edge will always be a weak area when polishing , if you go mad you will end up with a noticable line

its best to try and loose the edge on a narrow section like up a roof pillar or somthing