paint finishes

[Josh_gsy]

Does anyone know how water resistant primer grey paint is? as in can i drive my car round with that as its finish and expect it to last?

cheers

Josh

[davreeve]

Not very,Its usually quite porous and you can expect rust specks to appear very quickly.

[deluxemk1]

Two pack primer will probably be ok for a little while (few weeks) Cellulose primer will hold back water as much as a bath sponge.Even if it looks alright moisture gets in and underneath it giving that lovely microblistering to your new paint about three months after its sprayed nice n shiny then that damp just want to get out again!If its got to go outside id flat it as if ready for paint then just flick a bit of clear laquer on the primer bit to seal it from the weather.Then on paint day just flat it with 1200 and wack your colour on .Hope that helps

[lee_capri]

can i ask a question on the same subject please,i was going to leave the cappa in prima once the bodywork is done,after reading this wont bother,

 

do matt paint's also soak water,or if want to keep the water out what about the gloss from areosole, ame colour has u going to do the car

[Copey]

yeah lee matt is similar, rust comes through very quickly

[V8ian]

Paint it with primer then clearcoat it with clear and a flatting agent, then you know it wont be porus

[bronze4door]

how does red oxide primer cope with moisture

[orionmojo]

ALL primer is porus....

 

cant say any more.

 

rat look is rat look for a while, then its MOT failure look

[orionmojo]

also to add.

 

cars can stay in primer for years without rust showing, but if they're not dried properly before paiting rust/water bubbles can emerge within weeks or months of painting.

[deluxemk1]

V8 ian is right.If you want the rat look it needs laquer on it.Ive done a few rods that need what we call the suede look matt metallic like it looks when its just the basecoat on there.There is a additive you can put in normal clear laquer called matting agent ,and in fact some paint manufacturers can supply it premixed eg glasurit do it if anyone wants it look for a company called MORRELIE .You can just buy the matt agent ,but remember its got to be the same manufacturer as the laquer you are going to use with it .Experience also tells me if you add the twenty percent or so to the laquer as recommened its not normally enough id add bout 35 percent to your laquer.Paint the clear not quite as hard as you would normally either as sometimes it will still gloss.Seen it recntly on a ford pop rod a mate did ,not enuf matt in the mix and painted to wet, It came out gloss grey instead of rat primer . Id use the premixed stuff much better result.If you put this over primer/matt black etc you will get the same durability as youd get with normal shiny paint but you get that tough look !

[mr zefect]

I use a sikkens 2k mat laquer at work and it comes in a tin ready to use and gives a nice mat finish.

[deluxemk1]

Yeah thats the stuff all different brands but thats the gear youd need

[Josh_gsy]

...so i can laquer the primer and then use a matting agent, or

used a ready mixed matt laquer?

spose i should get my panels sorted first!

oh also.... what gets ride of that nasty black stuff the whole of my underside of my cortina is coated in? im lazy so a spraay hose off would be nice?

cheers

Josh

[hotrodholty]

...so i can laquer the primer and then use a matting agent, or

used a ready mixed matt laquer?

spose i should get my panels sorted first!

oh also.... what gets ride of that nasty black stuff the whole of my underside of my cortina is coated in? im lazy so a spraay hose off would be nice?

cheers

Josh

undercoat/underseal?

if it is the only real way is a week on your back with a hot air gun and a scraper

iv done mine, shitty job but worth it in the end

[mossy]

my mk2 went rusty again underneath the primer after a few weeks!

[deluxemk1]

Get a ready mixed matt laquer.Look for a paint supplier like Brown Brothers etc or you local professional paint supplier. Just mix it with the hardener it requires. Thats only if you want your car t have a matt or satin finish that wont rust .I think people are getting confused here.If you want to do a shiny bit of paintwork the same as the rest of your car and you just want to protect your repairs from the weather before the big painting session , primer the repaired areas.Leave overnight then flat the repaired bits with 500 grit rubbing down discs dry or you can wet flat em with 800 wet and dry.If you wet flat it make sure you dry the primed bits with a heat gun or similar to get any damp out.Then just spot a little single pack laquer on the primed bits to seal em from the weather.That will lt you drive the car in the rain and give to time to do the other bits in stages without worry.When the day to do your paint job is here just flat the panels off all over with 1200 laquered repaired bits and the rest of the panels your going to paint .clean em mask em and walop your colour of choice over the lot as normal.Hope that helps ya.Remember in closing if you dont have breathing gear dont use two pack paint .Ask the paint company you deal with for single pack or 1k paint or laquer.All the best

[Josh_gsy]

Cheers!