SeaDoo Spark Care And Repair page 17

Hot Air Plastic Welding Tool
• Install the appropriate nozzle on the tool.
• Adjust the hot air welding tool to 300°C (572°F) and let it run for at least 10 minutes. If
using a tool without a built-in temperature display, use an infrared thermometer gun to
verify air temperature at the tip of the nozzle.
*This temperature setting has been validated for the use of the recommended hot air
welding tool and welding rods.
The complete Official Sea-Doo Polytec Hull and Deck Repair instructional
video can be viewed at www.youtube.com/watch?v=eZpD0wrB_rk&t=1s ,
or scan the QR codes to jump to select parts of the video.
Surface
Preparation
Welding
1) Groove the crack from the inside surface, about 1/3 of the materi-
al thickness. This groove can be made as wide as you need to work
comfortably, up to 45°. Groove should extend past crack by 1" (2.5
cm). Refer to the repair diagram above.
2) Remove all excess material from in or around the groove.
3) Cut the end of the rod at an angle to start with a clean tip. Scrape
the rod with a blade to remove any dirt or oil.
4) Place the rod end slightly beyond the beginning of the groove and
apply heat to both surfaces simultaneously. The tip of the heat
source should be within 1" (2.5 cm) of the weld joint.
DO NOT MELT THROUGH THE ROD OR REPAIR SURFACE MATERIAL!
Overheating changes the material mechanical properties.
TECH TIPS
The material is hot enough when both the surface of the weld rod and the faying surface
become glossy. As the rod is laid or pushed into the groove, a small weld puddle should
appear.
A rod can be cut to half width using a good pair of metal snips, and used to
precisely fill the groove on the first pass or for touch-ups.
5) While moving the heat source along the length of the rod, press
the rod into the groove to fill it. Lay down the rod until slightly past the
end of the groove.
6) Continue to fill the groove by adding layers. Each layer should
overlap the edges of the previous one. Overlap edges of the groove
as well. Wait for the material to become cool to the touch before
proceeding with the next layer. The material cannot become "over
cooled" if left a long time.
Preparation
1) Use a mild detergent to remove dirt or grease from
both the inside and outside surfaces of the repair area.
Use a belt sander to remove the reinforcement matting
from the repair area when applicable. Weld directly on
Polytec surface to avoid possible delamination.
2) Sand the repair area on the inside surface only.
Surface Prep
Full Video
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Step 1-3
Step 4-6
4-5
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