fender undercoating -- suggestions before painting : MGA Forum : The MG Experience

fender undercoating -- suggestions before painting #1
ldc7675 larry C abingdon, VA, USA Sign in to contact 1957 MG MGA 1500	Topic Creator (OP) Apr 23, 2014 08:39 PM Joined 11 years ago 75 Posts

Has anyone use undercoating in their A fender wells ? Any suggestions?
Mine will be a driver so conerned about rock chipping etc. I understand that some of the rodder guys are using truck bed liner spray. Any one used it on their A's ?

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Re: fender undercoating -- suggestions before painting #2
Gary E Gary Edwards Kernersville, NC, USA Sign in to contact 1962 MG MGA MkII	Apr 23, 2014 08:55 PM Top Contributor Joined 17 years ago 16,300 Posts

Mine is a driver but it is painted in the wells. I figured when it got beat up then I would do something different.

Gary

Murphy's law

Tell a man there are 300 billion stars in the universe, and he'll believe you. Tell him a bench has wet paint on it, and he'll have to touch it to be sure.

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Re: fender undercoating -- suggestions before painting #3
ldc7675 larry C abingdon, VA, USA Sign in to contact 1957 MG MGA 1500	Topic Creator (OP) Apr 23, 2014 10:24 PM Joined 11 years ago 75 Posts

Gary
That crossed my mind also. Eventually it will have to be done either way. I can just see me rounding a corner and VA DOT has just layed down fresh tar and gravels. Their to cheap to lay down payment on our back roads. I can just hear the gravels beating the grap out of the fenders. Ok done scared myself , going to talk to the paint guy tomorrow see what he can get.

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Re: fender undercoating -- suggestions before painting #4
59mgaguy John Terschak Wakeman, OH, USA Sign in to contact 1930 Ford Model A "Jenny" 1959 MG 14/28 "Jessie" 1974 MG MGB "Oooops"	Apr 24, 2014 07:00 AM Top Contributor Joined 13 years ago 7,602 Posts

Most undercoating is a petroleum base. Once on it is a pain in the A-- to get off if you need to do repairs later. Plus a mess to take off. On some of the fenders I've been working on I had to take a torch to get a majority of it off.

If you want good protection from stone chips and still want the color to show through I suggest chip guard. But it still a pain to take off but not as messy and cleans up better for painting.

As for the road being tared and chipped. I think I would be more worried about the nose section and the rest of the outside body paint being damaged. I'd try to avoid the road till it has been well traveled and packed down. By then the road crew should just be ready to redo it it again.

It's fun having a car pass you and then watch the chips fly off their tires as they floor it as they pull in front of you.

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Re: fender undercoating -- suggestions before painting #5
Gary E Gary Edwards Kernersville, NC, USA Sign in to contact 1962 MG MGA MkII	Apr 24, 2014 07:03 AM Top Contributor Joined 17 years ago 16,300 Posts

I got tarred the first season after I put the car on the road. I used Zip car wash and a cup of kerosene to wash under the fenders. Came out clean as a whistle.

Gary

Murphy's law

Tell a man there are 300 billion stars in the universe, and he'll believe you. Tell him a bench has wet paint on it, and he'll have to touch it to be sure.

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Re: fender undercoating -- suggestions before painting #6
TeamEvil Thomas C (Disabled) Kingston, MA, USA Sign in to contact	Apr 24, 2014 09:46 AM Top Contributor Joined 12 years ago 5,815 Posts

Chip Guard is available in clear from SEM in aerosol cans. Goes down like regular spray paint and looks nice in the small pebble finish, plus the original paint shines through.

Do it right and you'll never need to remove it.

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Re: fender undercoating -- suggestions before painting #7
59mgaguy John Terschak Wakeman, OH, USA Sign in to contact 1930 Ford Model A "Jenny" 1959 MG 14/28 "Jessie" 1974 MG MGB "Oooops"	Apr 24, 2014 10:38 AM Top Contributor Joined 13 years ago 7,602 Posts

Gary,

No tat, dirt or dust would ever dare to get on your car...

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Re: fender undercoating -- suggestions before painting #8
bobs77vet bob K. northern Va, VA, USA Sign in to contact	Apr 24, 2014 10:58 AM Top Contributor Joined 11 years ago 8,264 Posts

i have moved away from using undercoating to just using paint and touching it up as needed. i have never seen undercoating increase the value of a car

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Re: fender undercoating -- suggestions before painting #9
Gary E Gary Edwards Kernersville, NC, USA Sign in to contact 1962 MG MGA MkII	Apr 24, 2014 11:01 AM Top Contributor Joined 17 years ago 16,300 Posts

John
N.C. road tarring doesn't care who it gets on. They start as soon as it gets warm and continue all summer.

Gary

Murphy's law

Tell a man there are 300 billion stars in the universe, and he'll believe you. Tell him a bench has wet paint on it, and he'll have to touch it to be sure.

Edited 1 time(s). Last edit at 2014-04-25 09:40 AM by Gary E.

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Re: fender undercoating -- suggestions before painting #10
Donovan Christopher Wilson G'boro, NC, USA Sign in to contact 1961 MG MGA MkII "Betsy"	Apr 24, 2014 11:17 AM Joined 15 years ago 316 Posts

I used a spray on bed liner tinted the body color when I did mine. I also did the inside of the trunk this way.

My car is also a driver and this has held up well and you cannot tell unless you crawl under there and look. I would do it again.

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Re: fender undercoating -- suggestions before painting #11
GMG 2J Mark Vine Essex, England, UK Sign in to contact 1934 Ford Model Y 1953 Ford Prefect 1955 Scammell Explorer 1958 MG MGA 1500 Coupe & more	Apr 24, 2014 03:33 PM Joined 10 years ago 975 Posts

Just a quick question, did the cars have under seal from new ? I ask as I am sure mine does not have anything. Kind regards,

Mark.

We will talk a little later when we are older.

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Re: fender undercoating -- suggestions before painting #12
Bandersnatch Larry Wheeler Hillsboro, OR, USA Sign in to contact 1957 MG MGA "Rosie 2"	Apr 24, 2014 04:35 PM Joined 15 years ago 2,034 Posts

In reply to # 2670571 by GMG 2J Just a quick question, did the cars have under seal from new ? I ask as I am sure mine does not have anything. Kind regards,

Mark.

Nope. Never.

Do you know why the British don't make computers? They can't figure out how to make them leak oil!

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Re: fender undercoating -- suggestions before painting #13
ldc7675 larry C abingdon, VA, USA Sign in to contact 1957 MG MGA 1500	Topic Creator (OP) Apr 24, 2014 06:29 PM Joined 11 years ago 75 Posts

TC
I will check it out

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Re: fender undercoating -- suggestions before painting #14
ldc7675 larry C abingdon, VA, USA Sign in to contact 1957 MG MGA 1500	Topic Creator (OP) Apr 24, 2014 06:41 PM Joined 11 years ago 75 Posts

Christopher
What brand of bed liner did you use?

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Re: fender undercoating -- suggestions before painting #15
TeamEvil Thomas C (Disabled) Kingston, MA, USA Sign in to contact	Apr 24, 2014 07:18 PM Top Contributor Joined 12 years ago 5,815 Posts

Larry,

This will get you started.

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=SEM%20clear%20chip%20guard

I've been going to Amazon more and more this year. Great prices and quick service.

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