Vin, I was hoping I could just apply this plastic primer which has flex aid added and then paint over the top with 2k white. KH used to make a plastic primer that this could be done as it was compatible with both 1k and 2k paints. This can doesn't say and online searches are not helping, as there seems to be no information on the net about it. Unfortunately KH burnt down and no longer exists or I would have bought their product. I have no idea if this gear can have 2k primer painted over the top anyway. It's sold buy a Rare Spares in Launceston and they sell heaps of paint but knew little about this gear it would seem.
I went in to buy the KH gear that I have used before and walked out with the Bodyworx stuff.
BodyworX Bumper Coater (VN Commodore): 1 L
Flexible factory pack bumper bar paint which has been designed specifically for use on bumper bars. Suitable Substrates: sound existing finishes, new bumper bars primed with plastic primer. Up to 10% reduction may be required using a multi-purpose thinner.
BodyworX Bumper Plastic Primer (EA Light Grey) 1 Litre
Plastic Primer is a ready for use primer. It is easy to apply and is specifically designed to adhere to all plastic auto parts. Suitable substrates: ABS, PP/EPDM, PP, SAN, PC, PA, PUR-RIM, R-TPU, PPO, PBT, PUR, SOFT FOAM, UP-GF. Not suitable for vinyl upholstery Colour: Grey Size: 1 Litre
BodyworX Flex Aid 500ml
BodyworX Flex Aid 500ml ,An additive for use with Acrylic Paint to improve flexibility, making it more suitable for flexible surfaces, such as bumper bars.
Mix 20ml of Flex Aid to 1 Litre of Acrylic Paint
@Losh online info. So, going from that, suitable to go straight over plastics using their other product BodyworX Bumper Coater (VN Commodore) over the top after. Holdens used an Acrylic Urethane Enamel system called Dulux Rapide from 1982 to 1994 built bodies .... 1995 built on was 2K. Spray 1 light dust coat first and see if any reactions/issues with plastic when dry, if ok spray 2 more full coats for smooth surface coverage followed by base colour/clear,
OR spray a 2k primer over the top of that bodyworx primer for a 2b 2b 2b sure 2K result.
I would just get a
spray can of the clear plastic sealer/primer/adhesion promoter, to key in the raw plastic bar, then scuffed up followed by
coats of any sandable 2K primer for coverage/flat surface then base colour/clear.
Many ways/brand products/costs/choice to
skin a cat, time and doing multiple times/jobs would show you what works without issues and good for you in your situation and what quality/result job you require, versus time to redo. Some painters even just spray the clear promoter thick then straight to colour/clear on different plastics, simple shortcuts for a quick cheap job. They even use 2K primer thinned with 10/25% reducer if they have no Epoxy primer to seal any raw parts to leave for a long time before working on them but is much $$ dearer than epoxy. Epoxy can also be
tinted to match paint colour to go straight to colour/clear to use less expensive paint but not for a long lasting top quality result.