Saab Tech Talk (STT)

The Forecourt => Off-topic chat, Help, Advice, General motoring issues => Topic started by: Steve McF on 21 April 2024, 10:55:41 AM

Title: Peeling lacquer
Post by: Steve McF on 21 April 2024, 10:55:41 AM
Hi all, so after restoring the headlights on my son's Ford Focus estate that is patiently sitting in the garage waiting to be fully recommissioned before going for MOT, I want to have a go at fixing the horrendous lacquer peel on a large area of the front bumper.

The lacquer has come off a large area on the left side, but there are other areas where it has bubbled but not come off. I need to get all this off and rub down what is left before re-lacquering.

However, what is the best way to get all the loose stuff off back to the good lacquer without damaging the base coat? Someone suggested jet wash but I'm a bit wary.
Title: Re: Peeling lacquer
Post by: sgould on 21 April 2024, 12:03:16 PM
Take the bumper off.  Rub it down and start again with a primer.  If you just try and replace the lacquer, it will still look odd.  You really need a key for the lacquer, and if you rub down the black, it will look like it.  A fresh coat of black with the lacquer a few minutes later without rubbing down.
Title: Re: Peeling lacquer
Post by: Steve McF on 22 April 2024, 12:40:49 PM
My son is not too bothered that it doesn't have lacquer in places, but I'd just like to tidy it up a bit if I can. Worst case, i could probably find another bumper of the right colour from a scrappies, but I wanted to have a go on this bumper first, at least. If the colour is slightly off, he won't be too bothered, as it is already slightly off with no lacquer :D

The car is metallic tango red apparently.
Title: Re: Peeling lacquer
Post by: sgould on 22 April 2024, 01:31:30 PM
The problem you will have is that the exposed paint will be dirty.  Unless you get it really clean, the lacquer won't stick.  And, it's clear that the exposed paint is not suitable for getting lacquer to stick, as it hasn't stuck before.  So you will probably need to sand down to get a key, which will expose the metallic particles and alter the finish.

Maybe a good clean and de-grease and a coat of lacquer is all you can achieve, in situ.  But expect to have to do it again in a year.
Title: Re: Peeling lacquer
Post by: carrera on 23 April 2024, 10:43:16 PM
This is quite impressive...

https://www.youtube.com/watch?v=Vaga2RYllvE (https://www.youtube.com/watch?v=Vaga2RYllvE)
Title: Re: Peeling lacquer
Post by: Geoff1951 on 24 April 2024, 01:00:46 PM
Quote from: carrera on 23 April 2024, 10:43:16 PM
This is quite impressive...

https://www.youtube.com/watch?v=Vaga2RYllvE (https://www.youtube.com/watch?v=Vaga2RYllvE)

So easy when you see it like that!