Re spraying grill problem

1. raul0 Established Member Joined: Apr 2009 Lincolnshire Posts: 1112 Wicked Red Furio

   #1 5th October 2010, 19:20

   Hi ive just been out to spray my grill with primer. I did 3 or 4 thin coats and sanded when i needed 2 i ended up nearly using a can doubt if this is normal anyway it seems to show like little bits on the bottom of it kinda black bits. There seems to be plently of primer on the grill but i can see the original black only very very slighty on it. Other then that theres no marks or anything. I was just wondering if this is a problem or should i just lightly sand it when i come to painting it red.
2. merc2546 Infrequent Poster Joined: Aug 2010 swindon Posts: 225 1.1i

   #2 5th October 2010, 19:45

   are u useing a fine grade of sandpaper if i was u put another coat of primer on just so u can see the black
3. raul0 Established Member Joined: Apr 2009 Lincolnshire Posts: 1112 Wicked Red Furio

   #3 5th October 2010, 19:49

   its got alot of primer on anyway i doubt putting anymre on will matter. I just put my finger on it and it seem really rough i dont understand why.
4. user_40844 Regular Poster Joined: Jan 2010 Lancashire Posts: 418 r.i.p furio..... now a vtr (y)

   #4 6th October 2010, 00:58

   Quote:

   Originally Posted by raul0 its got alot of primer on anyway i doubt putting anymre on will matter. I just put my finger on it and it seem really rough i dont understand why.

   Primer doesn't usualy feel that smooth but then agen ive never described it as 'really rough', also 3-4 thin coats shouldnt be anywhere near a full can i did my rocker cover, front gill and all 4 vtr alloys with 2 and a half cans (being generous with my coats)
5. raul0 Established Member Joined: Apr 2009 Lincolnshire Posts: 1112 Wicked Red Furio

   #5 7th October 2010, 18:42

   So what do you think I'm doin wrong then. Am I sprayin to far away if I'm using way to much. I got through a can and it only just covered the whole grill. Do I need to be closer just not 2 close because of over spray. ???
6. burgerfeet Infrequent Poster Joined: Oct 2010 Bridgend Posts: 231 VTS 2002 - well the Mrs does

   #6 7th October 2010, 18:58

   If you spray too far away the paint can begin to dry before it hits the surface giving you a feel just like you have fine sand trapped in it.
7. user_37194 Established Member Joined: Sep 2009 rotherham Posts: 1832 Be scirocco, full on 03plate track spec Saxo

   #7 7th October 2010, 20:57

   naming the actuali grit of the sand paper wud be help full, no less then 320 shud be used on primer, also if its a plastic grill you would need plastic primer or be no good with just genrel gray primer
   
   mark
8. raul0 Established Member Joined: Apr 2009 Lincolnshire Posts: 1112 Wicked Red Furio

   #8 7th October 2010, 21:37

   Hi I used just grey primer on my grill is this a problem then do I have to use plastic primer if so why
9. burgerfeet Infrequent Poster Joined: Oct 2010 Bridgend Posts: 231 VTS 2002 - well the Mrs does

   #9 8th October 2010, 06:33

   Quote:

   Originally Posted by raul0 Hi I used just grey primer on my grill is this a problem then do I have to use plastic primer if so why

   You really do need to use a plastic primer. This primer etches into the surface and provides a good key for the finishing paint. If you use 'normal' primer it has a tendency to flake off. Plastic expands amd contracts at quite a rate so the correct primer is essential.