Nitro on top of Poly?

paulnb57

Squier necks are unbelievably anaemic looking, if I wanted to spray vintage tinted Nitro over Poly would it work, assuming prepping with, say, 400 grit?

Cheers

Paul

Deadman

Yes. I've done it plenty of times before. As long as you key it (400 is ideal) and degrease thoroughly you're golden.

paulnb57

Thanks D!

Deadman

Hit us all up with some pics when you're done, mind

ICBM

Fender do it on their posh nitro-finished models, so yes .

ewal

Thinking of doing something similar with my classic player Jazzmaster body - I take it I wouldn't need to use a nitro primer and I could spray over the suitably keyed black poly with Sherwood Green nitro?

Corvus

Exactly. Degrease it well esp if it was ever waxed.
Then sand, paint. No need for primer, the old paint is a ready-made primer/sealer.

Alnico

This is all VERY worth remembering. Thanks Guys.

paulnb57

I din't need to do it as it turned out, I was going to buy a new Squier Bronco Bass, but got one off here used and the pale neck had faded and darkened nicely....the info will I am sure come in useful in the future though...

ewal

Just to add to the already useful record - what should I use to degrease the body before sanding? Thanks.

Corvus

Panel Wipe is made for the job like this one On fleabay as well but brands are a bit of a lottery there.
Wipe on wet and wipe off with another cloth, Tesco's white kitchen towels don't leave lint but the pros use lint-free cloths sold for the purpose (look for "panel wipers" in that site).

And "tack rags" - slightly tacky cloths to take off sanding dust, and for a quick clean of fluff and whatnot just before painting. Gentle wipe, don't mash them into the surface.

In a pinch lighter fluid works but Panel Wipe is the boss.

sweepy

Fender Pearlescent guitars are Nitro over Poly, as are some PRS's

IvisonGuitars

sweepy;914186" said:

Fender Pearlescent guitars are Nitro over Poly, as are some PRS's

As are most of the CS Guitars. Vintage fenders were coated with Fullerplast as a sealer/grainfiller before finishing which was essentially the same thing.

Corvus

What some places call poly sealer/grain filler, in particular that excitable "dirty little secret" page isn't the same as 'poly' paint, which elsewhere is called two-pack or 2k and the yanks call urethane, catalysed urethane, acrylic urethane etc etc. Too many damn names, but it's not the same animal as the filler/sealer.

Some sealers/fillers are rock hard and a proper bastard to remove. Done a couple of guitars that had sprayed sealer coatings almost like a hard shell. Good base for paint and cheap production (easy grain-fill & seal), but the wood won't show any wear this side of the apocalypse.
And others with a good grain filler & thin sealer that would age/relic up and look fine with nitro.

But I wouldn't be surprised if some companies actually do paint nitro onto actual 2k paint (or "poly"). Grain-fill, seal and/or clearcoat, then finish with nitro. 2k clear or primer makes a stable base, quick & easy to do final paint, the process could fit in with general production since it shares stages. Also suits some finishes like flake or heavy pearl. Several reasons it makes sense.

IvisonGuitars

@Corvus I've just finished a TV Special with a PolyCrylic grainfill/sealer, dries rock hard, self levels (to a point) and sands easily. Will let you know how it works out.

Corvus

That sounds good, always good to know about products etc, pics good too