Jointing machine for Water stoppers

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Methods for Jointing PVC  Water stops with Heater Blade.  

1. Water Stops can be join on site with a simple electrical heater blade.  
2. Water-stops of same width & design should be sharply leveled at edges using a knife. Turn on the Electric Heater Blade and wait will it become hot. Place the waterstops on both sides of heater blade & press it until it melts but without burning. 
3. Remove the heater blade upward. Joint the molten end quickly & hold them together firmly for approximately 20-30 seconds.