DIY Rubber Repairs

Joined
3 May 2010
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869
Location
Dallas area
A while back, I posted about a problem http://nsxprime.com/forum/showthread.php?t=151031&highlight=rodent but found no solution - until now:smile: The rubber boot covering the alternator must be especially tasty to the rodent populace because they almost completely devoured mine!


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I found that in order to get a new boot from Acura, I have to purchase the $150 harness that it is attached to and I wasn't up for that :frown: Also, I was unable to find an acceptable alternate so I set about finding a way to fix what I had and it turned out to be pretty easy. Here are the supplies that I used:

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The magic ingredient here is called Sugru http://sugru.com/. It is a form-able putty that, when hardened, becomes silicone rubber that is fully as flexible as the original material of the boot.

First, I washed the boot in a Dawn dish washing liquid solution and allowed it to dry. Next, I cleaned the eaten-off edges with acetone to promote adhesion of the new rubber. Then I opened a packet of Sugru, kneaded it and began to form it onto the boot. I used the rounded end of a broom handle to form the internal geometry of the bulb portion:


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Here it is completely filled in with the Sugru:

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Kind of looks like a chocolate Snoopy head, eh? Don't worry. After it fully hardened, I sanded it and then smoothed it out with fine steel wool:

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....but that is still pretty ugly, right? The next step is where the Plasti Dip comes in. I plugged both ends and added a piece of coat hanger wire for hanging it out to dry:

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I chose red for a little added bling but it is available in black or any of several other colors. It took 2 dip/dry cycles to get a smooth, glossy finish. After it was fully dried, I used an Xacto knife to trim the ends:

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Nice, huh? Here it is installed:

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I'm pretty happy with the result and very happy that I didn't have to spring for the $150 harness :biggrin: I can foresee many future uses for Sugru and intend to always keep some on hand.
 
Wow is all I can say you def a DIY-er

it look great and great job.

where do you get that stuff from?
 
wow aren't you a little McGyver!! That looks awesome and I never would have thought of that! Great work man!
 
Start making your own replacement hoses now...jk.
 
I was thinking that a visit to a wrecking yard might turn up a boot that is similar?

But that is still very nice work.
 
Wow is all I can say you def a DIY-er

it look great and great job.

where do you get that stuff from?

Thanks for the props - Sugru is currently only available (in the US anyway) from sugru.com. Plasti Dip can be found at most any hardware store (Home Depot, Lowes etc) but I had to go to an independant ACE hardware store to find it in red.
 
Think this would work for a T-TOP damaged seal..?

I think that would be a good application for it and it's next on my agenda too try. I'm thinking that I will slit the torn area enough to get a strip of Gorilla duct tape adhered to the inside of the seal and then build up the area on top with Sugru till it's flush. The color of the "black" Sugru is pretty close to the seal color too.
 
I think that would be a good application for it and it's next on my agenda too try. I'm thinking that I will slit the torn area enough to get a strip of Gorilla duct tape adhered to the inside of the seal and then build up the area on top with Sugru till it's flush. The color of the "black" Sugru is pretty close to the seal color too.

I have been wondering how to fix the torn rear targa weatherstrip. The best I came up with is crazy glue and baking soda (picture attached). Sounds odd, but the baking soda helps "fix" the crazy. I tacked up a couple of spots to align the torn edges and then slowly filled in the cracks with baking soda and soaked it with crazy glue. That seemed to help keep the two edges together better than anything else I tried. It dries harder though, so it might be good to put a thin layer of that Sugru over it to help form a better seal.
 

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I have been wondering how to fix the torn rear targa weatherstrip. The best I came up with is crazy glue and baking soda (picture attached). Sounds odd, but the baking soda helps "fix" the crazy. I tacked up a couple of spots to align the torn edges and then slowly filled in the cracks with baking soda and soaked it with crazy glue. That seemed to help keep the two edges together better than anything else I tried. It dries harder though, so it might be good to put a thin layer of that Sugru over it to help form a better seal.

That's why I love this forum - so many innovative ideas! I would have never thought of using a baking soda filler. I'll put that one in the bank cuz I may need it sometime :smile:
 
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