Engine primer and paint - The 1947 - Present Chevrolet & GMC Truck Message Board Network

papsoldblue72 · 04-12-2014, 08:57 PM

What kind is the best to use???? So that it doesn't peel off...

**'68OrangeSunshine** · 04-13-2014, 12:09 AM

I've had good results with VHT.

GASoline71 · 04-13-2014, 12:29 AM

Or Duplicolor. Paint isn't the problem... it's prep of the the surfaces to be painted.

Gary

papsoldblue72 · 04-13-2014, 07:25 AM

Quote:

Originally Posted by GASoline71

Or Duplicolor. Paint isn't the problem... it's prep of the the surfaces to be painted.

Gary

Ok is there something special I need to do to the surface of the block??? Does the primer I use need to be heat resistant ???

**special-K** · 04-13-2014, 07:40 AM

I've never used primer and generally use Dupli-color. Alcohol or lacquer thinner prep well. I've used break Clean to degrease and painted straight after that. I'm sure there are more professional ways. But I'm not talking show quality,just simple and easy

GASoline71 · 04-13-2014, 02:02 PM

Quote:

Originally Posted by papsoldblue72

Ok is there something special I need to do to the surface of the block??? Does the primer I use need to be heat resistant ???

Engines are greasy by nature. Even newly rebuilt ones. So I use either brake clean or contact cleaner on mine. Acetone works too.

Yes you will need an engine heat rated primer. They are right along side the engine paints in the parts stores. I don't use a primer either. I usually do about 4 to 5 coats f paint.

Gary

**'68OrangeSunshine** · 04-13-2014, 04:28 PM

In Tucson, I take advantage of the Sun, and leave the part out in full sunshine to warm up, before shooting paint. I also shoot the surfaces down with Brake Cleaner, but let it evaporate completely [and the part to warm back up] before painting. I have tried it with hi temp primer and without and can't say one is better than the other. VHT is a division of Dupli-Color now, but that high heat range is better on headers and exhaust manifolds. Hi Temp [+500*F] Dupli-Color is OK.
If you're not shooting on bare metal, scuff the surface wth steel wool.

Bigdav160 · 04-13-2014, 07:21 PM

I shot several engines with epoxy primer then base coat/clear coat.

They still look pretty.

papsoldblue72 · 04-15-2014, 12:58 PM

Quote:

Originally Posted by GASoline71

Engines are greasy by nature. Even newly rebuilt ones. So I use either brake clean or contact cleaner on mine. Acetone works too.

Yes you will need an engine heat rated primer. They are right along side the engine paints in the parts stores. I don't use a primer either. I usually do about 4 to 5 coats f paint.

Gary

Thanks Gary...... I think I'm going to go with the Dupli-color engine primer and paint...

LUCKTRUCK · 04-15-2014, 01:05 PM

I've had good results with PPG epoxy primer and VHT spray.

knomadd · 04-15-2014, 01:07 PM

If you're not looking for a glass smooth surface, primer isn't really needed. I've only used primer once on an intake manifold and it didn't make a difference what-so-ever. Save your time and money. And I use the Dupli-color engine enamel too. On a driveable vehicle, I'll take it to a local quarter car wash, spray it with engine degreaser, use a scraper for large particles then wash it off and let it dry. Before I paint it, I'll use brake cleaner for the residue and just paint it.

If you have peeling/chipping paint, you'll want to scrape that off or your new paint will still come off.

bMr · 04-15-2014, 04:57 PM

Resprayed this engine last weekend after cleaning in Purple Power, brake cleaner, and a bristle brush. Local machine shop bead blasted the oil pan, valve covers and timing cover for a very reasonable price and it was totally worth it; I literally sprayed them down in brake cleaner to degrease the finger prints then shot the orange.

Dupli-Color low gloss black, VHT Chevy orange, and (uncured) VHT header paint on the manifolds. Previously all of the engine was in Dupli-color Chevy orange, which held up pretty darn well over the last 15 years.

brad_man_72 · 04-16-2014, 10:22 PM

Prep prep prep.
Ground everything down till It was smooth, clean, then spray bombed it. I've seen worse in $100k street rods.

litew8 · 04-16-2014, 10:29 PM

"Dawn - Takes grease out of your way!"

roxxx · 04-16-2014, 10:36 PM

Wurth has a product at is specifically for cleaning surfaces for auto body you can buy it om large cost effective containers and put it in a regular spray bottle

Next time I am at my client i will find out what it is

04-12-2014, 08:57 PM	#1
papsoldblue72 Registered User Join Date: Apr 2008 Location: Somerset, Kentucky Posts: 233	Engine primer and paint *What kind is the best to use???? So that it doesn't peel off...* __________________ *It's been a long time coming... It's time to get it done..*

04-13-2014, 12:09 AM	#2
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,462	Re: Engine primer and paint I've had good results with VHT. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

04-13-2014, 07:40 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Engine primer and paint I've never used primer and generally use Dupli-color. Alcohol or lacquer thinner prep well. I've used break Clean to degrease and painted straight after that. I'm sure there are more professional ways. But I'm not talking show quality,just simple and easy __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

04-13-2014, 04:28 PM	#7
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,462	Re: Engine primer and paint In Tucson, I take advantage of the Sun, and leave the part out in full sunshine to warm up, before shooting paint. I also shoot the surfaces down with Brake Cleaner, but let it evaporate completely [and the part to warm back up] before painting. I have tried it with hi temp primer and without and can't say one is better than the other. VHT is a division of Dupli-Color now, but that high heat range is better on headers and exhaust manifolds. Hi Temp [+500F] Dupli-Color is OK. If you're not shooting on bare metal, scuff the surface wth steel wool. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not. Last edited by '68OrangeSunshine; 04-13-2014 at 04:43 PM.*

04-13-2014, 07:21 PM	#8
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Engine primer and paint I shot several engines with epoxy primer then base coat/clear coat. They still look pretty. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

04-15-2014, 01:05 PM	#10
LUCKTRUCK Registered User Join Date: May 2007 Location: new jersey Posts: 610	Re: Engine primer and paint I've had good results with PPG epoxy primer and VHT spray. __________________ LUCKTRUCK

04-15-2014, 01:07 PM	#11
knomadd Registered User Join Date: Jul 2012 Location: Rosenberg, Texas Posts: 3,506	Re: Engine primer and paint If you're not looking for a glass smooth surface, primer isn't really needed. I've only used primer once on an intake manifold and it didn't make a difference what-so-ever. Save your time and money. And I use the Dupli-color engine enamel too. On a driveable vehicle, I'll take it to a local quarter car wash, spray it with engine degreaser, use a scraper for large particles then wash it off and let it dry. Before I paint it, I'll use brake cleaner for the residue and just paint it. If you have peeling/chipping paint, you'll want to scrape that off or your new paint will still come off. __________________ -Duane C/10 Club Texas member 1971 Chevy C10 "Brutus" SWB Fleetside 2016 6.0L (L96) 6L90E (driver/project) 1965 Pontiac GTO "Royal Goat" 400/TH400 w/AC (my baby)

04-15-2014, 04:57 PM	#12
bMr Registered User Join Date: Aug 2009 Location: Auburn Posts: 78	Re: Engine primer and paint Resprayed this engine last weekend after cleaning in Purple Power, brake cleaner, and a bristle brush. Local machine shop bead blasted the oil pan, valve covers and timing cover for a very reasonable price and it was totally worth it; I literally sprayed them down in brake cleaner to degrease the finger prints then shot the orange. Dupli-Color low gloss black, VHT Chevy orange, and (uncured) VHT header paint on the manifolds. Previously all of the engine was in Dupli-color Chevy orange, which held up pretty darn well over the last 15 years. Attached Images

04-16-2014, 10:22 PM	#13
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Engine primer and paint Prep prep prep. Ground everything down till It was smooth, clean, then spray bombed it. I've seen worse in $100k street rods. Attached Images __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project,

04-16-2014, 10:29 PM	#14
litew8 Registered User Join Date: Jul 2011 Location: Des Moines, Iowa Posts: 3,016	Re: Engine primer and paint "Dawn - Takes grease out of your way!" __________________ project: "my happy mess"

04-16-2014, 10:36 PM	#15
roxxx Registered User Join Date: Sep 2013 Location: Didsbury Alberta Canada Posts: 177	Re: Engine primer and paint Wurth has a product at is specifically for cleaning surfaces for auto body you can buy it om large cost effective containers and put it in a regular spray bottle Next time I am at my client i will find out what it is



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