30 October, 2026 | 
Admin
Synthetic Turf in Saudi Arabia
Short answer: Synthetic t
Read morePVC Sheets and PVC Welding Rods: Uses and Fabrication Guide
30 October, 2026 | Admin
Short answer: Rigid PVC sheet is a low-cost plastic
with good chemical resistance, used for tanks, ducts, linings, covers
and fabricated equipment. PVC welding rod joins PVC parts by hot-air
welding. It works at moderate temperatures only and is not for hot
service.
Why PVC is widely used
- good resistance to many acids, alkalis and salts
- rigid and strong for its cost
- easy to cut, weld, bond and thermoform
- does not corrode like steel
- flame-retardant behaviour compared with many plastics
Limits
- limited temperature range; it softens when hot
- becomes brittle in cold if impact-loaded
- attacked by some solvents such as ketones
- some grades are not for long outdoor exposure without UV
stabilisation
Typical uses
| Application | Why PVC |
|---|---|
| Chemical tanks and sumps | Resists many chemicals |
| Ducts and fume extraction | Corrosion free |
| Linings and covers | Light and cleanable |
| Wall cladding in wet areas | Hygienic and easy to clean |
| Fabricated components | Easy to weld and bond |
Welding PVC with rod
PVC parts are joined by hot-air (or hot-gas) welding with a matching
PVC filler rod.
Free engineering tools
- Plastic weight calculator — Work out the weight of PVC Sheets and PVC Welding Rods sheets, rods and tubes in kg
- Match the rod to the sheet type and colour.
- Clean and bevel the joint.
- Heat the rod and the joint together with a welding gun at the
temperature recommended for PVC. - Press the rod into the joint steadily to fuse it.
- Let the weld cool before loading.
A good weld needs the right temperature, pressure and speed. Test
pieces before production work. Overheating burns PVC and produces
discolouration and weak joints.
Sheet types
- Rigid grey PVC: common for industrial and chemical
use. - White, black and other colours: for visual or
hygiene needs. - Clear PVC: for guards and covers, with lower impact
strength than polycarbonate.
PVC or other plastics?
For hotter or more aggressive chemical service, consider PVDF or PP.
For higher impact, consider polycarbonate. See PVDF guide and
polypropylene guide.
What to send
Form (sheet or rod), thickness, size, colour, application,
temperature and quantity. Diode Trading EST supplies PVC sheets and
welding rods in Saudi Arabia, and every order ships with a Material Test
Certificate. request a quote
Typical project examples
A chemical dosing area may need a PVC-lined bund and tank covers. A
laboratory may need PVC fume cupboard panels. A factory may need PVC
wall cladding in wash-down areas. In each case, a drawing and a list of
chemicals let a supplier propose a thickness and grade.
Safety and handling
Never burn or overheat PVC: it gives off hydrogen chloride fumes when
it decomposes, so weld in a ventilated area and keep the gun temperature
within the recommended range. Wear protective gloves when handling hot
welded parts. Cut with fine-tooth blades and deburr the edges. Store
sheets flat and shaded, with a protective film on the surface until
fabrication.
Common mistakes to avoid
- using the wrong welding rod for the sheet type or colour, which
gives a weak or visibly different weld - welding too fast, so the rod only sits on the surface instead of
fusing - forgetting that PVC becomes brittle in cold conditions
- using PVC for hot chemical lines where PVDF or PP would last
longer - skipping a test weld before the real job
Questions to ask your
supplier
Which PVC type is the sheet (grey, white, clear)? What is the
thickness tolerance? Is a matching welding rod available in the same
colour and type? Is the sheet stabilised against UV if it will be
outdoors?
FAQ
What is PVC sheet used for? Tanks, ducts, linings,
covers and fabricated parts.
Can PVC be welded? Yes, by hot-air welding with PVC
rod.
Is PVC chemical resistant? Against many chemicals,
but not all. Check your chemical.
Can PVC be used in hot service? Only to moderate
temperatures. Use another plastic for hot fluids.
Related: Polypropylene Sheets · PVDF Sheets ·
Engineering Plastics Guide
Recent Posts
High Visibility Reduce Trip Hazards
See our range of high-visibility safety mats and markers designed to reduce trip hazards across your site.
Related Blogs
Products related to this article
Diode Trading EST supplies these Engineering Plastics from stock in Dammam, with delivery across Saudi Arabia and the GCC.