Hi @Steve5
The paint you want to spray on will work but can be chipped of fairly easy.
In the paint department the is a high grip undercoat that may give you a better surface to spray on too as I want to paint plastic down pipes.
Dulux claims this will stick to PVC too
Dulux 1Step Prep Primer, Sealer & Undercoat 1L I/N: 1370232 $49.90
Taken from Bunning website
- No sanding required on most surfaces
- Superior adhesion
- Mould resistant
- Excellent coverage
- Interior and exterior
Dulux 1Step Prep Water Based Primer, Sealer & Undercoat is your first step towards a superior, long-lasting paint finish. With mould resistance and stain blocking of tannin and flash rust, it ensures your interior or exterior paint shines now and into the future.
Use 1Step Prep for all general paint surfaces in your home including interior and exterior walls, ceilings, doors, windows, trim, and especially in kitchens, bathrooms and outside areas where mould could be a problem.
Apply it confidently to most surfaces including brick, masonry, paper-faced plasterboard, timber, MDF, render, concrete, cement sheet, galvanised iron, Zincalume steel, PVC and previously painted surfaces.
