Plastic Welding Rod


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Plastic Welding Rod is almost essential to produce excellent weld strength. Using the Industrial Quality Plastic Welder or the Low Cost Plastic Welder and the techniques described in Plastics Fix Book is the right start. Using the correct plastic welding rod for the job provides the ultimate joining strength, usually 90% to 100% of the strength of the original plastic material.

Read on for information on the common types of plastic welding rods available, their profiles and how to choose them. We have only listed the types we most commonly sell. There are many, many more. If you need something different, please contact us.

List of Stocked Welding Rods (Many others available on request)

Code Material Size Profile Colour Coil Length
RABS3RB ABS 3mm Round Black 50 metres
RPEHD5TB High Density Polyethylene 5mm Triangular Black 10 metres
DOLAVBLUE High Density Polyethylene
For Dolav Box Pallets
5mm Triangular Blue 1.2 metres
RPELD4TB Low Density Polyethylene 4mm Triangular Black 50 metres
RPEMD3RN Medium Density Polyethylene 3mm Round Natural 50 metres
RPEMD3RHR Medium Density Polyethylene 3mm Round Honda Red 50 metres
RPEMD3RSR Medium Density Polyethylene 3mm Round Suzuki Red 50 metres
RPEMD5TN Medium Density Polyethylene 5mm Triangular Natural 50 metres
RPEMD5TN Medium Density Polyethylene 5mm Triangular Natural 400 metres
RPEMD8X2N Medium Density Polyethylene 8mm x 2mm Tape Natural 50 metres
RPP3RN Polypropylene 3mm Round Natural 50 metres
RPP5TB Polypropylene 5mm Triangular Black 50 metres
RPP5TW Polypropylene 5mm Triangular White 50 metres
RPP8X1.5B Polypropylene 8mm x 1.5mm Tape Black 50 metres
RPPEPDM8X2B Polypropylene/EPDM 8mm x 2mm Tape Black 50 metres
RPVC5TG PVC Rigid Grooved 5mm Triangular Grey 50 metres
RTK Rod Test Kit - 40 Materials 3mm Round Various 350mm

Common Plastic Welding Rod Profiles (Shapes)

Plastic Welding Rod Round Profile
Round Profile

Plastic Welding Rod Tape Profile
Tape Profile

Plastic Welding Rod Tape Profile
Triangular Profile

Back to Welding Rod Stock List

Matching Plastic Welding Rod Materials

A mismatch of plastic welding rod material with the item to be welded will result in poor weld strength and weld failure. The best way to identify the correct material for your plastic welding rod is to weld a small test piece of rod on to the item to be welded, leaving an end of the rod free. Wait for the weld to cool. Grab the end of the rod with pliers and exert a reasonable pull. If the rod comes away from the item, you have a mismatch.

To find the correct material use the Rod Test Kit (last item in the table above). This kit has small sections of 40 types of plastic welding materials. You are able to easily identify the right material. The Rod Test Kit comes free with the Low Cost Plastic Welder Kit and the Industrial Welding Kit or can be purchased separately.

The Plastics Fix Book lists full material identification and matching methods as well as clear directions on how to prepare for welding and achieve the best results with your plastic welder.