kepemrunning: if you really dont care we used a fridge coil and just strapped it to the
front of the car for a radiator and it ran fine!
Corolla Toyota: My friend, when the factory made the plastic tank they melt it on 300 C ,
but when you add your material it comes melt on 70 c , so the old plastic &
the new material you add won`t be one unit , I deal with this business & we
tired many things to fix the plastic as you did . so in the end we found
the replacing is the best , your idea might helps for 2 or 3 weeks , then
the leak will comes back ...... thank you
Urethane Supply Company: It doesn't met for the same reason the plastic parts on the radiator don't
melt...the temperature of the liquid coolant in contact with the plastic is
at a much lower temperature than the melting point of the plastic.
Danny Smith: Please get the loud rock music. I could not have one coherent fought during
the video it sucked
Corolla Toyota: because the hot water comes from the motor direct to the top plastic tank
then goes down & cooling . then the cold water goes back to the engine from
the bottom tank .
Urethane Supply Company: You are wrong. The filler material is Nylon, the same material the tank is
made from and it melts over 300 degC. I'm not sure where you are getting 70
deg C. You must be confusing welding with an adhesive repair, which this is
not! This is a TRUE WELD, making the base material and filler rod into one!
It is not a glue or other adhesive bond, it is a true weld...just like
you'd weld metal except the filler rod and substrate in this case are nylon.
dcbourbonireland: I have a 4 inch long split in my radiator in the top box just at the bend
where it is crimped onto the metal parts with the fins .Its a large
radiator for diesel 2000cc Toyota Carina 1993 automatic .Can this weld
system work on there .Is it easy to remove the crimp system to fix the top
box on the inside to put a plastic plate inside to spread the load .Why do
you think the top box cant be fixed i thought the bottom is where the
engine hot water comes in rises to top where it will be coolest
Urethane Supply Company: not true. The material you are adding is the same material the tank is made
from. It will not melt with hot water flowing through it. It makes a true
fusion weld and if done correctly, will hold up as well as a new tank
WITHOUT replacing it!
dcbourbonireland: Thanks for prompt reply .Your reply was what i expected top or bottom isn't
the issue. My crack is on the 90 degree bend knuckle so it will require
further analysis if there is enough material so i will come back on that
issue in few days
Urethane Supply Company: Polish it with progressively finer grits of sandpaper if looks under the
hood are important to you. With sandpaper and polish, you could buff it to
a high shine if you were really motivated...my question would be...Why?
Closing the hood hides the weld pretty nicely! ;-)
Urethane Supply Company: This argument against radiator repair doesn't hold water. If the steam were
hot enough to melt the weld, it would also be hot enough to melt the tank
itself, they are the same material if you chose the correct filler rod.
Poor reliability is more likely caused by using the wrong filler rod, poor
surface prep and cleaning, or poor technique.
Urethane Supply Company: If you want a plastic weld to look good, it is the same process as making a
metal weld look good: grind, sand and polish or paint (depending on the
plastic type.) If you want the weld itself to look less cobbled, use a hot
GraymanTactics: then mute it...idiot.
NORMAN WELCH: That's it?, no reinforcing screen?
Urethane Supply Company: Corolla Toyota is not correct. If the split is accessible, regardless of
its location, the tank is weldable. The pressure at the top or bottom of
the tank is the same, The temperature may be different, but if the weld is
done correctly, the additional stress caused by higher temps is easily
handled by the weld. So the real question is, is there enough material on
the side of the crack to weld the filler rod to?
AngeV2: while maybe functional it looks crap. if they ever come out with an elegant
process to repair plastic i'll buy it.
Urethane Supply Company: You can melt the stainless reinforcing mesh into the repair, but in this
case it is not required. I usually do it myself just to help prevent
pinholes and because I tend to over-kill on repairs.
dirtTdude: If the coolant level is low and there is a leak, escaping steam gets plenty
hot to melt the weld.... I've never had a successful rad repair but I've
welded hundreds of bumpers
Duane Christofferson: All that just to repair a crack? just buy a new radiator.
Urethane Supply Company: Right, but it has nothing to do with the weldability of the upper tank. The
maximum temperature of the hot water is less than half that of the melting
temp of the plastic, so it is still not hot enough to damage a good weld no
matter what....even in an overheat situation.
NORMAN WELCH: If you want your repair to look "elegant", that's totally up to you and
your patience. You can keep smoothing the repair with a hot paddle tip. I
found through experience, that the ugly welds usually hold better.
Personally, I like to go overboard on my repairs too. If the part ever
fails, I want it to be somewhere else.
Adrian K: all that?? it took less than 2 minutes..what kinda of an excuse for a human
are you lol lazy prick
Corolla Toyota: it might works since with bottom plastic tank only because the hate not
much , but it does not work if you fix the top one like that , you must
replace the plastic tank with new one .
Corolla Toyota: its fine .. I agree with you with a point that the cover not Plastic made ,
we replace it with plastic one , but how come it does not melt later after
you fix it , since the water comes so hot from the Engine ?
Plastic Radiator Repair - Cracked Radiator4.8
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