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HOT AIR & NITROGEN WELDING 

SET-UP AND USE GUIDE

A complete guide to setting up your new hot air & 
nitrogen welding equipment and using it to make the 
fastest, strongest, and most cost-effective repairs to 
plastic bumper covers and other parts.

Copyright 2010 ©   Urethane Supply Company   All Rights Reserved

Every step of the way, Urethane Supply Company has
what you need to repair and re

fi

 nish plastics.

YOU WILL SUCCEED

Summary of Contents for 6053 EZ-Weld

Page 1: ...welding equipment and using it to make the fastest strongest and most cost effective repairs to plastic bumper covers and other parts Copyright 2010 Urethane Supply Company All Rights Reserved Every step of the way Urethane Supply Company has what you need to repair and refinish plastics YOU WILL SUCCEED ...

Page 2: ...steady flow of air coming from the welder s tip The heating element must AL WAYS have adequate air flow to prevent it from burning out Air flow should be set quite low you re more likely to distort or melt through plastic if the air flow is set high 3 Plug in the power cord Power is turned on and off by pressing the knob The knob is rotated to the desired temperature setting Within a few seconds y...

Page 3: ...w to nitrogen before you begin welding and back to air when you re finished with your weld This will minimize the use of your nitrogen gas and assure adequate gas flow to keep from burning out the heating element NOTE One important feature of the design on the 6053N2 Nitrogen Air Controller is that if the nitrogen bottle runs out of gas while the controller is set on nitrogen the air will back flo...

Page 4: ...mportant factors for plastic welding T A P S an acronym for Temperature Angle Pressure and Speed For temperature set the temperature on the hot air welder s dial to the proper setting For example the PP TPO setting will generate an air flow of about 550 600 F This can be adjusted up or down for various thicknesses of plastic but this is a good starting point An angle of 45 between the torch and th...

Page 5: ...he plastic pieces are lined up use Urethane Supply s 6481 1 or 6485 aluminium tape on the outer cosmetic surface It s best to line up the outer surface to minimize the need for filler and weld the backside of the crack first c Prep the backside of the crack If there s any paint over spray on the backside remove it first by sanding with 80 or 180 grit sand paper Also lightly sand the area the weldi...

Page 6: ...ace area to weld to A perfect ex ample is the slots on the edge of the bumper where the bumper snaps into the quarter panel like on a Honda bumper These often seem to break out when the bump er is removed There s not enough surface area to make a good repair with either a two part system or with the FiberFlex Here s how you fix a torn out bumper slot a Clean the plastic first Do this every time BE...

Page 7: ...e the underlying plastic h Weld opposite side Repeat the welding process on the opposite side Usually the tape or metal support is not needed but it can be helpful After welding mash the repaired area flat and straight again using the hand seamer i Restore slot dimensions and finish repair After letting the weld cool restore the final dimensions of the slot and bumper edge using a Dremel tool airl...

Page 8: ... technique as described earlier g Prep the outer surface by grinding a shallow v groove about 3 8 wide along the seam Feather back paint and put down some sand scratches with 80 grit in a DA Blow dust free h Weld the front side of the bumper with R13 rod Lay one strip down along the long seam then weld each end and wrap the weld ing rod around the edge If you have an airless welder you can melt an...

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