Knowledge base for plastics welding
Stronger joints start with knowledge.
Holm & Holm is your adviser in plastics welding. We explain the methods, recommend the right equipment and stand by your tasks from planning to documentation.
Knowledge base
Four subject areas covering the whole trade
Welding methods
Butt fusion, socket fusion, electrofusion, extrusion welding and hot gas welding explained step by step.
Read about the methods
Equipment & machines
Find the right machine and tools for the job, and learn how to use them correctly.
Find the equipment
Materials
PE, PP and PVDF, pipe classes with SDR and PN, and the preparation that determines joint quality.
Understand the materials
Worksite & quality
Data logging, testing and documentation of joints, plus safety and training of your welding crew.
Work smarterAdviser and supplier
We stand by you all the way, from the first question to the final pressure test
Advice
Honest professional sparring on method, equipment and materials before you spend a krone. We find the solution that fits your task.
Contact an adviserRental
Calibrated welding machines, extruders and accessories for rent when the job is a one-off or you want to try before you buy.
See rental (opens in a new tab)Service & calibration
Workshop, spare parts and calibration for machines from most manufacturers, plus certified used and demo machines.
Book service and calibrationRead the most sought-after