PDA

View Full Version : plastic welding?


pbcstylez
02-28-2008, 03:14 PM
Hey guys,

I have a headlight that my gf kicked, and snapped off a tab, I was exploring different options on how to repair this shit.

I would like to know what you guys use to repair plastic to plastic, its the black plastic that runs around the kouki headlights.

I've seen several stuff online:

http://www.solder-it.com/images/PP.JPG

Solder-It Plastic Weld (PP-1, PP-2)
Solder-It Plastic Weld is the most recent addition to our paste line. Plastic Weld will bond most plastics using the heat of a torch or heat gun including:

Vinyl
Polypropylene
Fiberglass
Thermoset and similar
Lexan
ABS
Polyethylene
Polyurethane
Nylon
Delrin
Acetate
Styrene
PVC
Plastic Weld will activate at approximately 195F and is easily applied from the syringe. You simply vee the joint, deposit the paste and heat. In 5 minutes, the bond reaches 80% of its strength and can be sanded, drilled, tapped, tapered, painted. After 12 hours it is 100% cured. Plastic Weld is available in two designer colors... Black and White.

Some common uses of Plastic Weld include repairs to ABS radiator tanks, overflow reservoir tanks, fan shrouds, bumper covers, grilles, fender skirts, PVC swimming pool lines, baths, PVC sprinkler systems, kitchen repairs.

Plastic Weld $8.00



What do you guys use to repair plastics? I also have a broken glovebox in my audi, the new glove is $400 i want to repair that POS as well

Any info would be greatly appreciated.

Thanks in advance,

Jeff

codyace
02-28-2008, 04:16 PM
I've never used that particular product, but have used the permetex plastic expoxy with good results.


A friend of mine also had one of those cheap harbor freight plastic welder deals....they work ok, but on thicker plastic. I repaired some of the broken eyelits on my under body plastic panels with it. He actually has shaved and filled marke lamps on VW's with his too (just needs to be sanded when done.

pbcstylez
02-28-2008, 05:26 PM
hey codyace,

so did the permetex plastic epoxy hold up? how thick of plastic did u do this on?

and how thick is thick when ur friend used the harbor frieght tool

babowc
02-28-2008, 08:00 PM
My dad welds plastic/acrylic for a living making aquariums..

Hm..
He has a "hot-gun" with a nozzle that blows very hot air through a ~3-4mm hole.

You just get the two pieces you want to join together and make a little groove, preferably like a U or V. *Along where they connect*
Then take a strip of plastic filler rod and place it in the groove and use the hot air gun to melt it in.

done.

burnsauto
02-28-2008, 08:02 PM
so its a chemical vulcanization for plastic? ...like a tire patch?

babowc
02-28-2008, 08:05 PM
Plastic filler just joins the two pieces together.
I suppose something like you said.

I thought it was really similiar to just welding metals..

steve_o1989
02-28-2008, 08:07 PM
That plastic weld works very good. We carry it at work and when it goes on sale it is gone right away. I would go that route and pick some up.

khilgers
02-28-2008, 08:07 PM
I used the 2 part plastic weld kit from NAPA to repair my sideskirts. I just cut a "v" filled it in, sanded, skimmed it again, sanded and I was done. It has held up to plenty of abuse. I don't recall the name of the stuff but it came in a black 2 part syringe and had a holding strength of 3500 PSI.

SilviaBricks
02-28-2008, 08:14 PM
Devcon plastic welder epoxy. I used it all the time to repair the fairings on my yamaha. $4 a tube at your neighborhood Walmart.

NI_YON_Zenki
02-28-2008, 08:19 PM
I used the 2 part plastic weld kit from NAPA to repair my sideskirts. I just cut a "v" filled it in, sanded, skimmed it again, sanded and I was done. It has held up to plenty of abuse. I don't recall the name of the stuff but it came in a black 2 part syringe and had a holding strength of 3500 PSI.

REFER BACK TO SOLDER-IT.COM,THERE IT IS. @ 3500 PSI OR LBS.

SOUNDS GOOD TO ME. I'VE LAZY ABOUT LOOKING INTO THIS SETUP MYSELF, I KNOW H.F. HAS A SMALL MACHINE THAT CONDUCTS PLASTIC/PLACSTIC WELDS. POSSIBLY THE HOT-BLOW SYSTEM, haahaa. HOT-BLOW. AHEM, ANYHOW. THE BANG 4 THE BUCK IS WHERE THINGS WORK WELL FOR SMALL JOBS. WELD-IT.

SOUND.

Beebo
02-28-2008, 08:30 PM
i always just run a soldering iron along the crack so it melts it together, then fill the groove with epoxy. holds up pretty good.

gprb25
02-28-2008, 08:37 PM
Hey man. I just repaired some of my turn signals and bumper tabs with plastic welder,
and I must say, I was impressed.

http://www.ippnet.com/EN/main/products/plastics/5498/5571/6932/6811.html

Thats pretty much what I used. It should be sufficient for what you are doing.

Ragnarok043
02-28-2008, 09:31 PM
i always just run a soldering iron along the crack so it melts it together, then fill the groove with epoxy. holds up pretty good.

ditto poor mans plastic welder. but i would try the solvent welder first, it leaves a cleaner finish and stronger bond.

projectRDM
02-28-2008, 10:14 PM
i always just run a soldering iron along the crack so it melts it together, then fill the groove with epoxy. holds up pretty good.

Bingo. weld it with a soldering gun, then sand and epoxy. Looks perfect.

LB.Motoring
02-28-2008, 10:23 PM
More info about your gf kicking your headlight.........

pwhitersxs
02-29-2008, 07:36 AM
^That was my first question. What made your girlfriend so pissed to kick out your headlight. My fiance knows better than to do something like that.

I also have used the soldering iron method and it works.

CAPoweredS14
02-29-2008, 08:11 AM
Make the girlfriend figure it out, and if not, no more girlfriend to fear kicking your shit again..

I'm trying to find out what stuff a friend of mine used, I think it was from JB weld or something like that.

pbcstylez
03-03-2008, 05:00 PM
More info about your gf kicking your headlight.........

hey robby be nice now man


haha! my shit is laying everywhere from the kouki part out just happened to be the headlight hurt her more than it hurt the light, lol

anyways the entire piece seperated any ideas how to adhere the two together, i dont think i can melt the two pieces back together than add the plastic weld and expect this to be strong

any inputs?