A sandable aerosol

[Simpo Two]

I'm close to perfecting the finish on my latest project:



So far I've used thick emulsion paint as a grain filler, and sanded smooth. So far it's had two coats and two sandings. However it leaves brush marks, and by the time you've sanded those away, you're pretty much back to where you started.

To avoid this an aerosol would seem ideal. However I still want a sandable finish, and whilst I use Halfords car aerosols for a final finish, I don't think they'll be suitable for this job, not least because they're gloss.

I'm at a stage now where I don't really want to experiment and mess things up!

Any ideas folks?

[Jo-say8k]

Aerosol filler primer?

[dr_gn]

Jo-say8k said:

Aerosol filler primer?

I was going to say Halfords filler primer aerosol.

Only issue might be a reaction to whatever's underneath.

[Simpo Two]

Thanks - I had a look and it says 'Provides a tough and durable protective coating' - no mention of sanding it...

https://www.halfords.com/motoring/paints-and-body-...

This one says it can be used on wood but again says 'tough finish'... https://www.halfords.com/motoring/paints-and-body-...

Edited by Simpo Two on Thursday 8th February 14:45

[dr_gn]

Simpo Two said:

Thanks - I had a look and it says 'Provides a tough and durable protective coating' - no mention of sanding it...

https://www.halfords.com/motoring/paints-and-body-...

This one says it can be used on wood but again says 'tough finish'... https://www.halfords.com/motoring/paints-and-body-...

Edited by Simpo Two on Thursday 8th February 14:45

Its OK (if not essential) to flat primers:

https://paintman.co.uk/help-and-info/

I've used Halford filler primer on FDM 3D prints, and flatted it back to the extend it's ony visible in the small imperfections and layer lines, then applied normal primer and a few top coats:

[Simpo Two]

Thanks, good to hear you've sanded (by which I mean very fine) the Halfords one.

I also found one by Motip: https://www.amazon.co.uk/dp/B00IPMIE4Y/ which says 'Fast drying filler with excellent coverage to fill small irregularities in surfaces, treated and untreated, of wood, metal and aluminium. The filler has excellent filling properties and adhesion and is rust preventive. MoTip Filler is easy to sand, both wet and dry and is re-sprayable with all lacquer systems'

Sounds perfect, but no reviews.

And this one by Hycote. I've used Hycote before but not this product: https://www.amazon.co.uk/dp/B002RS06IE?th=1 - 'Provides a smooth matt finish with exceptional sanding tolerance' but no mention of wood. And the colour might take some covering.

Hmm... I think maybe the Motip one, and do a test first...

[gruffgriff]

Halfords filler primer has worked for me too, filling wood grain etc. Sands well when properly dry, no evidence of sinking even years later.