Rear lip, made from cardboard! HOW TO GUIDE.

Discussion and technical advice for 84-89 AW10 & AW11 MR2. 3A-LU, 4A-GE, 4A-GZE.

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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

BEFORE YOU START TO READ, NOTICE YOUR REACTION TO THE TITLE. I GUARANTEE IT WILL CHANGE AT THE END OF THE READ.

The lip was made by myself. I have been doing glass for about 6 years now and this was the first time I used carboard as a base to get the general shape of the lip.

First I sketched out the design on paper. It was nothing fancy just something to use as a loose guide. I changed a few things as I went.

Next the design will dictate what materials you need to use as a base. Since the mr2 is boxy and the lip will be somewhat as well. I went for a 240sx looking rear lip. Just something simple and flows nicely. I chose to use cardboard since imo is the best for a boxy design.

Now that we are about to begin here are some quick tips.
-Wear old clothes
-Spend the extra few bucks to get the latex gloves, if you get resin on your hands it takes some time to get off your hands. Eventually it will turn black from dirty sticking to it and you will look like you never take a shower.
-Design ahead and plan everything out, if you don’t you will waste product, money and time.

Materials you will need and where to buy:
-Masking tape (I like to use the blue painters tape) anywhere
-disposable paint brushes homedepot, lowes, ace
-1.3-1.5 gallons of resin
(polyester is what I used for this) homedepot, lowes or auto supply store
-bondo (2 tubs is what I used)
I used the cheaper filler for this. I usually use ragegold or dynalite homedepot, auto parts store, walmart
-bondo spreaders homedepot, lowes, walmart, auto parts store
-spot putty/glazing walmart, autopart store
-respirator (not recommended, but you will get a headache from bondo and resin if you don’t have one) homedepot, lowes possibly walmart
-spray glue
-chop matt
-fiberglass cloth both dry fiberglass homedepot, lowes, walmart
-Sander
-low grit paper, 60,80 mid grit 120 high 320, 400 600

My advice is to buy all this stuff off the internet, that way you get more for your money and you have more of a selection.

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I built the whole lip out of CB (cardboard) first. I then put CB above the lip so no resin got on the bumper. Then cover the whole lip in tape. Put alittle car wax on the lip.


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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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Spray an area of the lip with spray glue, then place the chop matt to the lip, keep doing this until the whole lip is covered in chop matt. Once that is done, mix the resin, apply with the disposable brush. DAB it on! If you apply in strokes the matte will move. Mix the resin in small batches and apply until the chop matt is soaked. After a few coats it will look something like this: Dabbing will also prevent air bubbles down to a minimum. After a few coats it will look something like this:
flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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Once you get a few coats on and it is sturdy goahead and pop it off the car and remove the CB and tape from the backside Let it sit for a few min so any damp/sticky spots can cure. I then taped off the exposed bumper and mounted the lip. I applied 2 more layers and then pulled it back off the car. I strengthened from the backside. I only did 1 coat because any more would have caused fitment issues.

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Once that is done go ahead and sand with 60 grit to knock any standing glass or high spots. Mix up bondo in small batches and apply with the spreader. Apply it smooth as possible because this will prevent more sanding work. I like to do thin layers to avoid a lot of sanding. Trim the lip to the final shape.

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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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Keep doing this until you get it somewhat smooth, it doesn’t have to be 100% perfect just yet. Now get a cheap dark spray paint and lightly paint the lip. Now take your sanding block and sand with 80. Sand until desired, and dark spots are low spots and need to be filled with body filler and bondo colored spots are high spots and need to be sanded down. Objective is to get the lip all the same color (bondo color) Once you achieve this get a sharpie and circle any small holes air pockets in bondo that were exposed from sanding. Now take a clean spreader and your spot putty and apply to small pin holes. Then sand off with a 120 until the hole is gone and the surface is smooth.
flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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Now spray the lip in cheap sandable primer, stand back and pick out what looks off and make notes on the lip with the sharpie.You just want the lip to look uniform so it is easier to see what is off and then you can address the problem.

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flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

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Now that you have it somewhat looking like a lip now take a lot of pictures and upload them to the computer. Look at different angles and you will find more imperfections that you couldn’t see when you were standing there in infront of the lip. Make notes and fix it. Keep doing this until you are satisfied. Once you have it all fixed spray with the better of the primers in the rattle cans (duplicolor high build sandable primer) , dry sand 180-400 then wet sand 320-600. Do this until it is smooth.


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Here are some more pics of it painted.
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Still needs to be cleared

I will update the thread with better pictures of the final product later.
Munnsy
Posts: 3036
Joined: Fri May 11, 2007 7:32 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by Munnsy »

i love threads like this, real modifying :thumleft:
Totally transforms the rear of the car and a really good finish
How long have you been doing bodywork for now???

Something i have never tackeled,
thing is you make it sound so easy :oops: , great read though and great job :thumleft:
flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

I self taught myself at the age of 16 and have been doing it 6 years now. I only do work on my own cars while I go to college full time. Its more of a hobby, I cant make it a job otherwise the fun will disappear. haha
SuperRedMR2
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Joined: Mon May 16, 2005 8:40 pm
Location: Wickford, Essex

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by SuperRedMR2 »

im loving the colour!
cartledge_uk
Posts: 7608
Joined: Sun Nov 13, 2005 6:28 pm
Location: Newbury

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by cartledge_uk »

I love that green!

It looks great :thumleft:
Tiny
Posts: 3111
Joined: Fri Sep 21, 2007 7:00 pm
Location: Bordon

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by Tiny »

Love how the lines of the front and the sides are continued its Fantastic Really suits the car.

Wanna make one for me
FossMan
Posts: 225
Joined: Wed Aug 08, 2007 6:21 pm
Location: Wales

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by FossMan »

Excellent work. Something like that could so easily turn out looking tacky. Now show us the front :p
flatline16
Posts: 18
Joined: Sat Apr 25, 2009 8:14 pm

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by flatline16 »

LeSpank wrote:Excellent work. Something like that could so easily turn out looking tacky. Now show us the front :p


sure

The bumper had extensive work done on it to make it fit, it was a real pain.
Last edited by flatline16 on Wed Jul 14, 2010 12:56 am, edited 1 time in total.
greglebon
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Joined: Fri Feb 03, 2006 11:52 am
Location: Worthing, UK

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by greglebon »

Thats class..! :thumleft:

Love it: colour, lip, bumper......nice work, chap!

I'm sure there's a sizeable market for that rear lip: take a mould off it, and bobs your uncle.....? 8)
Superfly
Posts: 70
Joined: Sun Apr 13, 2008 11:27 pm
Location: Manchester

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by Superfly »

Agreed! That is pretty impressive. And my reaction did completely change from the start!! :thumleft:
MartG
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Joined: Thu Apr 07, 2005 2:19 pm
Location: Poulton le Fylde, Blackpool
Contact:

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by MartG »

Nice to see the 'glassfibre over cardboard' technique lives on - I used it to make a front spoiler for my '75 Celica 30 years ago :lol:
LoSt GhoSt
Posts: 46
Joined: Wed Nov 19, 2008 4:01 am
Location: USA

Re: Rear lip, made from cardboard! HOW TO GUIDE.

Post by LoSt GhoSt »

Hey man, nice to see you over here. Really like that rear lip and how your car ended up. Looking good man. Can't wait to see it finished.
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