AHHH I need paint managment!!

[mytymaus007]

here is the side of my cab after 3 coats of zinsser bin primer. Cant figure out how to get it totally smooth ive been sanding between coats but as it start to get smooth in one area it start showing the wood underneath. I read OND's thread. Should i spray the entire cab with spray putty

[mytymaus007]

here is the side of my cab after 3 coats of zinsser bin primer. Cant figure out how to get it totally smooth ive been sanding between coats but as it start to get smooth in one area it start showing the wood underneath. I read OND's thread. Should i spray the entire cab with spray putty

[Nephasth]

Doesn't look like you started with a completely flat surface...

[syph007]

Is this on MDF?

[gabe]

You could always give up on paint all together...

[TopJimmyCooks]

Oh, wow, ok.  It looks like you're using plywood for your side panels.  the natural grain of wood has different densities in different areas.  I.E if you have a piece of plywood faced with pine, the dark areas of grain are much harder due to more resin content, and will not sand down as fast as the light areas.  Therefore, if you sand you have to use a sanding block or hard pad, to stay flat rather than follow the contours, so the softer areas are bridged over and you keep a flat surface.

In your case, if I'm reading the pic right, you've sanded valley's into the softer areas of wood.  Or, the Zinnsers maybe raised areas of grain?  (moisture in the finish can cause areas of wood fiber to expand or stick out, usually only an issue with water based finishes)

If you can do it without sanding through the top layer of wood on the plywood, you need to sand back to flat with a stiff sanding block and coarse grit paper, then sand back to the smoothness you want.  then go back to painting.  If any of this isn't clear let me know. I've finished a lot of cabinets, doors, etc. both with paint and stains.   

[mytymaus007]

Oh, wow, ok.  It looks like you're using plywood for your side panels.  the natural grain of wood has different densities in different areas.  I.E if you have a piece of plywood faced with pine, the dark areas of grain are much harder due to more resin content, and will not sand down as fast as the light areas.  Therefore, if you sand you have to use a sanding block or hard pad, to stay flat rather than follow the contours, so the softer areas are bridged over and you keep a flat surface.

In your case, if I'm reading the pic right, you've sanded valley's into the softer areas of wood.  Or, the Zinnsers maybe raised areas of grain?  (moisture in the finish can cause areas of wood fiber to expand or stick out, usually only an issue with water based finishes)

If you can do it without sanding through the top layer of wood on the plywood, you need to sand back to flat with a stiff sanding block and coarse grit paper, then sand back to the smoothness you want.  then go back to painting.  If any of this isn't clear let me know. I've finished a lot of cabinets, doors, etc. both with paint and stains.   

I used ann orbital sander at first because i needed to remove contact cement from the old laminate which was a total mess. Once i got the wood smooth i was ready for the primer after 2 coats i used a sanding block but it seemed to just sand the high levels of the plywood. If i tried without the block it worked but i think i would be there for a year to get it smooth. Should i hit it with the orbital with 120 grit or use coarser grit with a block

[TopJimmyCooks]

 

I used ann orbital sander at first because i needed to remove contact cement from the old laminate which was a total mess. Once i got the wood smooth i was ready for the primer after 2 coats i used a sanding block but it seemed to just sand the high levels of the plywood. If i tried without the block it worked but i think i would be there for a year to get it smooth. Should i hit it with the orbital with 120 grit or use coarser grit with a block

Can you confirm whether it's plywood or particle board?  are there really continuous ripples like the photo of the primer seems to show?

[mytymaus007]

 

I used ann orbital sander at first because i needed to remove contact cement from the old laminate which was a total mess. Once i got the wood smooth i was ready for the primer after 2 coats i used a sanding block but it seemed to just sand the high levels of the plywood. If i tried without the block it worked but i think i would be there for a year to get it smooth. Should i hit it with the orbital with 120 grit or use coarser grit with a block

Can you confirm whether it's plywood or particle board?  are there really continuous ripples like the photo of the primer seems to show?

Plywood

[Ond]

PM Sent.

[TopJimmyCooks]

PM Sent.

Do whatever he says!

[nox771]

You could always give up on paint all together...

+1 to that.  That looks like construction grade ply, which it might be if it had laminate originally.  If your just doing black paint or some such, just save yourself a lot of work and laminate it.

[mytymaus007]

You could always give up on paint all together...

+1 to that.  That looks like construction grade ply, which it might be if it had laminate originally.  If your just doing black paint or some such, just save yourself a lot of work and laminate it.

Yes it had laminate on it to begin with. I sanded the last bit of contact cement off it. Its almost a nitemare but im using the spray putty to build back the lower areas so far looks like it coming along ill post pictures to show the difference. If i ever get it smooth i might paint it a different color then black maybe a Donky Kong 2 blue just to make up for the extra work. IM debating if I should roll it on or spray it on after getting it totally smooth any suggestions.

[mytymaus007]

Almost there Since the post more bondo was put on the low spots and sanded many times over to get it level also sprayed about 5 coats of Rustoleum Filler Primer Stuff works great and just put on 2 coats of paint

[Nephasth]

Much better! Looks good!

[TopJimmyCooks]

Good result!  did you get spray putty in the states?  I've looked casually but not exhaustively (auto parts stores, paint stores) and haven't seen any here. 

[mytymaus007]

Good result!  did you get spray putty in the states?  I've looked casually but not exhaustively (auto parts stores, paint stores) and haven't seen any here.  

Some said this was similar I do believe they were right. Used about 16 cans after sanding it was like glass!  

http://www.harborfreight.com/RustOleum-12-Oz-Gray-Filler-Primer-Spray-Pack-of-6-68722.html?utm_medium=cse&utm_source=googlebase&hft_adv=40010&mr:trackingCode=F7638C83-1A9C-E011-AC9E-001B2163195C&mr:referralID=NA

[TopJimmyCooks]

Dang, guess I should have looked at harbor freight.  didn't think of them for paint supplies.  thank you for the info.  Based on Ond's and your good experiences with that stuff I will be giving it a go the next time that which is wavy must become smooth.