Kayaks take a beating when going up against rough waves, rocks, and narrow passages. Weathered kayaks that are often exposed to UV rays are more prone to cracks. This video will show you how to repair a crack on a kayak. The method we will show can be used with Polyvance’s KCW Pro, 5700HT Mini-Weld Model 7, or the integrated airless plastic welder on one of our nitrogen plastic welders.
Watch us repair a kayak with a nitrogen plastic welder here: goo.gl/5V1Pei
1:04 Welding
1:58 Embedding the mesh
2:35 Welding
3:14 Smoothing
3:33 Refinishing
View this video on our website for more information and product suggestions for this repair: www.polyvance.com/video/kayak...
LDPE or HDPE?
The difference between LDPE (low density polyethylene) and HDPE (high density polyethylene) is the length of the molecule chains. HDPE has longer molecular chains than LDPE and the melting temperature of HDPE is often higher than that of LDPE.
LDPE's lower melting temperature usually makes using it as filler rod easier-to-use than welding HDPE filler rod to HDPE plastics.
HDPE is also "tougher" and more abrasion resistant than LDPE, but the practical difference is minimal when doing repair work. If you need the best wear characteristics and can live with making slower, more difficult welds, use HDPE rod. In most cases, we see better quality welds when using LDPE rod for typical crack or hole repair on boat hulls and ATV plastics.
⚠️ Important ⚠️
- Always wear proper safety gear while working!
- The length of this video is in no way representative of the actual time required to perform a complete repair and therefore should not be used for estimating purposes.
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