Question 1

Which plastics can actually be welded?

Accepted Answer

Thermoplastics weld well, which includes polyethylene (HDPE/LDPE), polypropylene, PVC, ABS, and some grades of polycarbonate. Thermoset plastics like fibreglass and bakelite cannot be welded and need to be repaired by patching and bonding instead. We are happy to identify the material first if you are unsure.

Question 2

Is a plastic weld as strong as the original part?

Accepted Answer

A properly executed weld typically achieves 80 to 100% of the parent material strength, which is more than enough for most repaired tanks, ducts, and fabricated parts. We bevel the joint, use matching filler rod, and check for fusion through the full thickness before signing the repair off.

Question 3

Can welding be done on site or does the item need to come in?

Accepted Answer

Small items come into the workshop where the environment is controlled. For larger pieces such as installed tanks, ducting runs, and pond liners, we travel on site within the Hobart region. Travel further afield is also possible for jobs that justify the time.

Question 4

How much does plastic welding cost?

Accepted Answer

It depends on the material, the size of the crack or break, and access to the part, so we quote each repair individually. Send us a photo of the damage and we will give you a firm price, and where it helps, a repair-versus-replace comparison so you can decide.

Plastic Welding Plastic Repairs

Plastic Welding Plastic Repairs

Key Benefits

Explore All Plastic Repairs Services

Other Plastic Repairs Services

Modifications

Kayak Repair

Tank & Container Repair

Industrial Components

Part Replication

Plastic Welding Plastic Repairs FAQs

Need Plastic Welding Plastic Repairs?