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How to restore interior plastic #624052
02/25/10 02:51 PM
02/25/10 02:51 PM
Joined: Feb 2009
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San Antonio, TX
CurYellowBird Offline OP
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How would you go about restoring plasting interior pieces such as the 71-74 console and other little things? Would armor-all do it?

I've seen some plastic that you can tell is dried out and can possible break if worked at all. Good example is the grill on my roadrunner. I can tell the plastic is kinda dried and brittle. I had the idea of soaking it in oil to try and "rehydrate" the plastic but not sure if my logic is right.


Project War Bird: 1971 Plymouth Roadrunner 383 4 speed with air conditioning GY3 Curious yellow All original
Re: How to restore interior plastic [Re: CurYellowBird] #624053
02/25/10 02:57 PM
02/25/10 02:57 PM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
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Once plastic has degraded and the plasticizers have "left the building" there is no way to revive it, it's dead. Anything else you coat over it such as paint or topical coatings will just be a bandaid over the problem.



I can restore your grille, so can you but it's allot of time consuming detail work, you may have a pretty steep learning curve to deal with it yourself.

In the case of the console you are lucky, VERY nice reproductions now exist from www.tonysparts.com, tell him I sent you.

In the case of seat backs, www.beaparts.com will have them soon.

To recover dash pad I'd reccomend "Just Dashes"

Anything else just ask, there's either a parts restorer or a reproduction parts manufacturer who can address most of your needs, but it's not going to be one stop shopping, be prepared to spend some time on the phone....And get your wallet out, most of it's pretty spendy.

Re: How to restore interior plastic [Re: ScottSmith_Harms] #624054
02/25/10 03:04 PM
02/25/10 03:04 PM
Joined: Feb 2009
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San Antonio, TX
CurYellowBird Offline OP
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There is nothing wrong with the console or seat backs. There just dirty and slightly faded. Those parts are rigid as can be. I just wanted to know how to bring back that "new" look. Maybe its just dirty cause I haven't tried cleaning it yet with anything. Luckily the car came with factory window tint all around. The main interior pieces that need to get replaced are the plastic pillar covers that go along the front windshield (A pillars?). How would you restore the grill?


Project War Bird: 1971 Plymouth Roadrunner 383 4 speed with air conditioning GY3 Curious yellow All original
Re: How to restore interior plastic [Re: CurYellowBird] #624055
02/25/10 03:22 PM
02/25/10 03:22 PM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
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If the material on the interior parts has not gotten brittle or degraded you can bring back the shine with topical coatings. However if the plastic is degraded on the surface, it's as I described above. Color fade on ABS or Polypropylene plastic is typically a sign of degradation, a quick test is to drag your nails across it with a fair amount of presure, if it leaves a whitish or chalk mark, you have degraded plastic. You can also paint (often call "Dye" but it's just paint) the plastic with products like SEMS interior vinyl paint to give it a shiney new look, but no paint on earth will give you the factory appearance and natural lustre of freshly molded plastic, it has a look all of it's own.

Grilles are made of ABS plastic, it's restorable in most cases by replacing brittle areas with new pieces, or shoring them up with fillers and other repair materials to shore them up before new paint is applied.

Re: How to restore interior plastic [Re: ScottSmith_Harms] #624056
02/25/10 03:36 PM
02/25/10 03:36 PM
Joined: Dec 2003
Posts: 3,519
Lansing, MI
70gtx440dana Offline
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You might be surprised how much you can improve interior parts with a thorough cleaning (soap and water, or interior cleaner). After that try some Armour All or similar. May not be concourse but will improve the old interior quite a bit. I have made some pretty aged parts look near new again with just some time and elbow grease.


70 Road Runner 383-4 4 speed FJ5 & black guts
70 Charger R/T 440-4 4 speed FJ5 & white guts
Re: How to restore interior plastic [Re: ScottSmith_Harms] #624057
02/25/10 03:37 PM
02/25/10 03:37 PM
Joined: Oct 2007
Posts: 4,323
St. Louis, Mo
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318 Stroker Offline
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Scott, correct me if I'm wrong. I believe the seat backs and the 71-74 console are made of two different types of plastic material.

I have a 73 Challenger which sat in a garage for 15 years. I don't have the hard seat backs on mine, but from the ones I've seen, I think they are the same material as E-body door panels, but different from my console, which is a harder plastic.

Fortunately, my console and interior panels are all black. The console, being a very hard material, cleaned up real nice with some soap and water, and a soft bristle brush.

The door panels, since they are softer and more porous, took multiple scrubbings to eventually get them clean.

Both the console and panels then got a few coats of Armor-All. I've owned this car for 35 years, and have used nothing but Armol-All on the interior and vinyl roof. Armor-All gets a bad rap from a lot of people, but I swear by it.

The vinyl roof wouldn't have needed replacing, except I had a little rust bubbling from underneath. The door panels and console look great, and guess what?

I have my original, uncracked E-body dash pad in my car, and it has seen nothing but Armor-All in 35 years. When's the last time you saw an original uncracked E-body pad? Darn few of them around.

Re: How to restore interior plastic [Re: 318 Stroker] #624058
02/25/10 03:48 PM
02/25/10 03:48 PM
Joined: Feb 2009
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San Antonio, TX
CurYellowBird Offline OP
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My interior is all black as well. The dash pad is gonna need a restoration which I know I can't do myself. The seat backs and console probably just need some cleaning. My woodgrain insert on my console is cherry too so I don't have to mess with that at all.


Project War Bird: 1971 Plymouth Roadrunner 383 4 speed with air conditioning GY3 Curious yellow All original
Re: How to restore interior plastic [Re: 318 Stroker] #624059
02/25/10 03:53 PM
02/25/10 03:53 PM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
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Speaking in general terms (they varied year to year and model to model in many cases) you are correct. Consoles are typically made of ABS or Polyethylene, and seat backs and some door panels (E-body, etc.) are made of a Polyethylene or Polypropylene. ABS, being a styrene alloy, takes paint very well because it is sensitive to solvents that will melt into it. Vinyl (PVC based plastic) also accepts paint very well so it's no trouble to recolor it either. PP/PE materials are not affected by most solvents therefore most paints, glues, etc. do not etch into them for a good bite usually resulting is a painted part looking great.....Until it starts peeling and flaking off.

Re: How to restore interior plastic [Re: 318 Stroker] #624060
02/26/10 11:02 AM
02/26/10 11:02 AM
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Posts: 164
Arizona
DartSportDude Offline
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Quote:

Armor-All gets a bad rap from a lot of people, but I swear by it.




I agree. A lot of people spend big money on this new, high tech stuff for vinyl and plastic. Armor-All is still a better choice in most cases.

Re: How to restore interior plastic [Re: DartSportDude] #624061
02/26/10 11:15 AM
02/26/10 11:15 AM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
Mr Wizzard
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The biggest issue with Armor-All is that it is not a restoration tool, it's a protectant. If you use it on new/fresh parts it may help reduce their degradation, but once the part is degraded it WILL NOT restore them, it will just make your degraded parts look like shiny degraded parts.

Re: How to restore interior plastic [Re: ScottSmith_Harms] #624062
02/26/10 11:28 AM
02/26/10 11:28 AM
Joined: Jun 2003
Posts: 21,442
It's a dry heat
gtx6970 Offline
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you would be amazed and what a good scrubing with a bristle brush and cleaner will do

Re: How to restore interior plastic [Re: ScottSmith_Harms] #624063
02/26/10 12:04 PM
02/26/10 12:04 PM
Joined: Oct 2007
Posts: 4,323
St. Louis, Mo
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318 Stroker Offline
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St. Louis, Mo
Quote:

The biggest issue with Armor-All is that it is not a restoration tool, it's a protectant. If you use it on new/fresh parts it may help reduce their degradation, but once the part is degraded it WILL NOT restore them, it will just make your degraded parts look like shiny degraded parts.




Scott, I agree with you on that statement.
Fortunately, I guess, I had put enough Armor-All on the dash pad over the years, that when it got garaged for what turned into a 15-year slumber, the pad survived intact. The Challenger is restored now, and Armor-All is still all I use on that original pad.

Are any of the chemicals used on vinyl a restoration tool, or are they all merely protectants?

Re: How to restore interior plastic [Re: 318 Stroker] #624064
02/26/10 12:14 PM
02/26/10 12:14 PM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
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Nothing will restore (any) plastics once they have degraded.

Re: How to restore interior plastic [Re: ScottSmith_Harms] #624065
02/26/10 12:17 PM
02/26/10 12:17 PM
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St. Louis, Mo
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318 Stroker Offline
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Quote:

Nothing will restore (any) plastics once they have degraded.




Pretty much what I thought!

Re: How to restore interior plastic [Re: 318 Stroker] #624066
02/26/10 01:28 PM
02/26/10 01:28 PM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
Mr Wizzard
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I tell my girlfriend the same thing about her skin when Cher is on some infomercial pitching skin "re-juvinator" products, "Take years of your skin and look young again" crappola! You can wipe anything on old dead skin you want, it may seem soft to the touch and fill in the crevices and wrinkles while it's there, but wash it off and what you'll still have what you started with....Old dead skin.



Re: How to restore interior plastic [Re: ScottSmith_Harms] #624067
02/26/10 01:36 PM
02/26/10 01:36 PM
Joined: Jul 2005
Posts: 1,624
qc
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mxbeep Offline
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qc
if car is a nice driver and 100% correctness is not necessary.

You can scrap off top layer from the chaulky plastic with various scrapping/sanding tools.

once top layer (usually faded and scratched) is taken off, you will no longer have correct grain finish... but the plastic will regain its original luster.

I wouldnt use the preceeding advice on a restoration, but its excellent to making a clean driver condition car, not to mention it costs nothing except for your time and effort

Re: How to restore interior plastic [Re: mxbeep] #624068
02/26/10 11:25 PM
02/26/10 11:25 PM
Joined: Jan 2004
Posts: 3,365
St.Louis,Mo.
70RR383 Offline
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If what you all are saying is true,I might have a god-send.Any of you have vinal shutters that are faded and dried out looking???I have a product that will make them look new and shiny.This product was introduced to me by someone who put it on a dash of an OLD CLAPPED OUT truck at his work 15 years ago.He said the dash was dryed out and nasty,then he put this on it and everything since,has been perfect.????Want to know what it was???It has been sold at paint stores for 75 years.

Last edited by 70383rr; 02/26/10 11:26 PM.
Re: How to restore interior plastic [Re: 70RR383] #624069
02/27/10 01:57 AM
02/27/10 01:57 AM
Joined: Jan 2003
Posts: 5,135
Kingsburg Calif.
Quikshft Offline
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????





Re: How to restore interior plastic [Re: Quikshft] #624070
02/27/10 02:11 AM
02/27/10 02:11 AM
Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms Offline
Mr Wizzard
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That is not a member of the injection molded thermopolymer family such as ABS,PVC, PP, or PE that was being discussed above. That is what is known as a Thermoset co-molded polymer, basically like an epoxy, a mix of materials and chemicals injection molded and blended under heat and pressure to form an alloy material, once it is set under heat and pressure it can not be ground up and re-used like most plastics (thermopolymers) can. It's a DRASTICALLY different animal, most contain some plastic resins but being an alloy of resins and solids such as glass fiber and talc fillers, they are more like fiberglass than anything else. It is not easily affected by heat or exposure to UV and can be patch repaired with fiberglass, and as shown above, will accept some oils into it's porus surface (again, similar to fiberglass) that will rejuvinate it's surface finish if faded. Items made of thermosets on our old cars are fairly limited, typically under hood items exposed to high heat such as the ramcharger air box shown above, and a common item to most cars, heater boxes.


Re: How to restore interior plastic [Re: Quikshft] #624071
02/27/10 08:41 AM
02/27/10 08:41 AM
Joined: Jun 2005
Posts: 840
Southeastern MI.
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QuickSilver Offline
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All I know is that WATCO Danish Oil is the best thing ever for a piece of top grade Walnut lumber! That stuff is about all we used when I was building high dollar custom cabinetry. Simply Beautiful. Of course it apparently has other uses as well, great product.

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