repair urethane - Exterior Forum

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repair urethane
Saturday, June 24, 2006 8:46 PM
I need to repair my rksport type j kit. I tore it in a couple places in a car accident. I dont want to hear it is not possible, because it is. I just want to hear what compounds people have used in the past and how rigid of a putty works best. Also, is there any other way (solder iron to melt it back togehter, etc.)

thanks for the input.


2004 Cavalier, 2.2L Ecotec
1965 El Camino, 396 BBC, 14:1, 800 BHP

Re: repair urethane
Saturday, June 24, 2006 8:53 PM
check out duramix products. They are made by 3M. here is a link

You might want to email them and find out which kind would be best for your application.



Re: repair urethane
Saturday, June 24, 2006 9:21 PM
Thanks. Those are the ones i was originally looking at and another manufacturer that makes some products that are flexible, wont peel back and can be sanded in 15 mins. Don't know which ones will work the best. I think I will try the MMM one first because of the reputation of the company. I will also repair the urethane and not paint the kit again for a couple weeks to make sure the repairs hold up.

Thanks for the input.


2004 Cavalier, 2.2L Ecotec
1965 El Camino, 396 BBC, 14:1, 800 BHP
Re: repair urethane
Saturday, June 24, 2006 11:23 PM
Well if it's the urethane that's cracked, honestly, I'd just let the shop fix it. I attempted to repair the streetfire front I had on my fire... after the third time, it held up for about a month... then busted again.

So, instead of repairing it yourself, then having it painted, then having it break again... i'd either:

1. Get ones that arn't cracked

2. Have the shop fix the urethane and paint it... make sure they warranty their work, and if it cracks again they have to fix it.




Re: repair urethane
Sunday, June 25, 2006 5:41 AM
Nice. I have been wondering the same thing for a while. I have a little 2 inch crack in my streetfire front. Not noticable at all, but still bugs the @!#$ out of me. Thanks for bringin this up and for the answers.


Wide Body Progress


Re: repair urethane
Sunday, June 25, 2006 7:32 AM
Go to eastwoodco.com and look up a plastic welder. I have one and it works great for repairing any kind of plastic bumper.



Re: repair urethane
Sunday, June 25, 2006 7:34 AM
Yeah there is a tool to fix cracks in urethane, and most shops should have that tool. Seriously though listen to ¤§Fallen Angel§¤ because he is right, just take it to a shop and get it fixed right. Just throwing some crap on top might work for a little bit, but will not last long and if you barely hit anything will crack again. Save yourself the time and money of not having to paint it multiple times and get it done by a shop.



Proud member of Jbody of Kentucky ... Click on sig to go!
Re: repair urethane
Sunday, June 25, 2006 9:55 AM
fist fallen angel is a women



secondly. ive talked to several people who do it for a living, and you first need to find out what type of material it is. there are allof of diffrent varieties, then you have to get the repair material that matches or in the future you will most likely have issues with it. a quick call to rksport should get you the answer on the type of urethayne it is. then you can contact your local body/paint shop about ordering the materials if you wish to do it yourself.


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography
Re: repair urethane
Sunday, June 25, 2006 12:20 PM
hehe... I'm a womAn not womEn (just pickin)

Honestly, repairing urethane is not an easy job,... best to let the shop do it




Re: repair urethane
Sunday, June 25, 2006 10:27 PM
I would let a shop do it, but I do just about everything on my car...

Plastic welder, got one. Someone told my this method WILL NOT work. Can anyone confirm this.

Heres what I thought about doing. On the back side place FG mat into the plastic concoction so there is more of a surface area for the plastic repair to adhear to. Plastic repair the front and sand. Can anyone back this idea?


2004 Cavalier, 2.2L Ecotec
1965 El Camino, 396 BBC, 14:1, 800 BHP
Re: repair urethane
Monday, June 26, 2006 6:37 AM
has anyone ever used 3M Auto mix(05896)

our shop instructor used it to fix a big hole in a impala bumper and it seemed to work really good. I painted it and it seemed to be fine for the month we had it in the shop.. but i dont know if he did the right thing or not.. i thought bout buying it and trying it out on a crack in one of my side skirts.. but i got one side id like to fix that needs material cuz its missing peices..





Re: repair urethane
Tuesday, June 27, 2006 9:01 AM
manta i think its one of those things that on some it may work fine but not work on others. everyone i had talked really stressed the issue of finding out what type of urethayne it was to match with your repair materials.


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography
Re: repair urethane
Wednesday, June 28, 2006 5:43 PM
if your askin how to repair plastic then don`t do it your self
it can be easily @!#$ up real f ast
the plastic has to be identified, first off, there are only 2 types of plastic offlien and non-offlien
tpo,tpe,teo=offlien plastic
polyurathene= non-offlien plastic
those asre just to name a few
and yes the 3m product is i say the best to repair plastic with, and plastic welding
yr`s and yr`s or experience are needed to repair plastic it is not something you just pick up ON THE @!#$ INTERNET!!!!


can i haz bondo
Re: repair urethane
Saturday, July 01, 2006 11:36 PM
ya but research it always good and you have to start somewhere. How do you think the people that are profcient in repairs became like that.

I dont want to sound like an @ss but please do not deterre people from wanting to try something by telling them they will not be able to do it.. Warnings on difficulty are nice. Thanks for all the help people. This week will tell all. Ill post pics when done.


2004 Cavalier, 2.2L Ecotec
1965 El Camino, 396 BBC, 14:1, 800 BHP
Re: repair urethane
Sunday, July 02, 2006 12:53 AM
Demonchild wrote:ya but research it always good and you have to start somewhere. How do you think the people that are profcient in repairs became like that.

I dont want to sound like an @ss but please do not deterre people from wanting to try something by telling them they will not be able to do it.. Warnings on difficulty are nice. Thanks for all the help people. This week will tell all. Ill post pics when done.


The problem with car stuff is that MOST people that come on here asking questions like this that are usually "high skilled" in getting it done right, don't realize that you can't teach someone how to do something like this over the internet.

Sure, research is always good, and you do have to start somewhere... but it's better to start with more simple things and when you gain skills in the "easier" work, work your way up to the more difficult tasks.

And, MOST people that became "proficient in repairs"... either went to school for it, or (like me) was given an apprenticeship and taught by someone who had been in the business for 25 years.

Some people come on here and want to just dive right in... but it takes LITERALLY years to build the skills to be able to do an awesome job, have it done right, and have it last.

Some people think auto body and paint is cake work and doesn't require any skill. Read my sticky post up top for an idea of the types of things that do go into work like this, and understand that THAT explanation is only a fraction of what all really goes into it.

I don't think he was trying to totally come off as an a$$, but imagine being dayum good at the job you do, and have tons of people all the time acting like the skills you've required over years of work are downplayed and thought of as "simple" things... durnit I know what I want to say but my brain isn't cooperating




Re: repair urethane
Sunday, July 02, 2006 1:49 AM
Angel wrote:I don't think he was trying to totally come off as an a$$,


More to-the-pointish









Re: repair urethane
Monday, July 03, 2006 7:16 PM
[quote=¤§Fallen Angel§¤]
Demonchild wrote:ya but research it always good and you have to start somewhere. How do you think the people that are profcient in repairs became like that.

I dont want to sound like an @ss but please do not deterre people from wanting to try something by telling them they will not be able to do it.. Warnings on difficulty are nice. Thanks for all the help people. This week will tell all. Ill post pics when done.


The problem with car stuff is that MOST people that come on here asking questions like this that are usually "high skilled" in getting it done right, don't realize that you can't teach someone how to do something like this over the internet.

Sure, research is always good, and you do have to start somewhere... but it's better to start with more simple things and when you gain skills in the "easier" work, work your way up to the more difficult tasks.

And, MOST people that became "proficient in repairs"... either went to school for it, or (like me) was given an apprenticeship and taught by someone who had been in the business for 25 years.

Some people come on here and want to just dive right in... but it takes LITERALLY years to build the skills to be able to do an awesome job, have it done right, and have it last.

Some people think auto body and paint is cake work and doesn't require any skill. Read my sticky post up top for an idea of the types of things that do go into work like this, and understand that THAT explanation is only a fraction of what all really goes into it.

I don't think he was trying to totally come off as an a$$, but imagine being dayum good at the job you do, and have tons of people all the time acting like the skills you've required over years of work are downplayed and thought of as "simple" things... durnit I know what I want to say but my brain isn't cooperating

completely off-topic, but that's exactly how i feel as a drummer. people think just just bang on stuff, but the amount of coordination and independency needed to play is actually quite a bit and to all those who tell me that it's easy i invite to sit at my drum set and teach me how to play whenever they want.



Re: repair urethane
Tuesday, July 04, 2006 8:08 AM
I see where people are coming from. Dont get me wrong, I am not the type to downplay anyones skills. I understand that a lot of this type of work takes a lot of time to aquire the skill to do it but im am handy so I feel the need to try everything. If the repair comes out looking like @!#$ then Ill gladly turn it over to one of my friends that has aquired the skills.


2004 Cavalier, 2.2L Ecotec
1965 El Camino, 396 BBC, 14:1, 800 BHP
Re: repair urethane
Tuesday, July 04, 2006 10:10 PM
Demonchild> Hey nothin wrong with wanting to try things yourself... but if someone tells you it's complicated, and unless you're really experienced don't try it and take it to a professional.......... know what I mean?

I don't mind so much helpin people with no experience or training to do little things... but if you're only trained as a paramedic, you don't want to jump into brain surgery if you know what I'm sayin.

For something like repairing urethane, it's best to just take it to a shop that warranties their work. that way, if it doesn't hold up, they have to fix it. if you're bent on trying it yourself, just do NOT get it painted for at least a few months until you know it's gonna hold up.




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