Sanding sealer compatibility with primer

[kimball492]

It's waterbased so should be fine the great thing is is there's a problem it can be wiped off

[stan]

Marelton, you have visited the Green Shed, it's the naughty room for you, get wokka to pour you a drink....

[Marelton]

First coat of acrylic primer on over the Timbermate and all looks good.

Thanks for the tip Kimball

[wokkaboy]

Primer coat looks good Marelton. What is the final colour you got planned?

[Marelton]

1. Acrylic prime
2. Black acrylic base coat
3. Thin layer of low flec silver base coat over the black.
4 Marble effect silver base coat while wet with cling wrap
5. Cobalt blue candy over the silver/black marble effect (provided I can find a candy dye/pigment that mixes with acrylic clear coat)
6. Acrylic clear coat
7. Lots of wet and dry sanding and polishing.....job done

[stan]

sounds like a plan, you need heaps of curing time for acrylic, the reason most of my projects are sitting half done is because of it

[Marelton]

Thanks Stan I'll bear that in mind

[dingobass]

sounds like a plan, you need heaps of curing time for acrylic, the reason most of my projects are sitting half done is because of it

And folk complain about Dingotone being slow to cure

[nitroburner1000]

1. Acrylic prime
2. Black acrylic base coat
3. Thin layer of low flec silver base coat over the black.
4 Marble effect silver base coat while wet with cling wrap
5. Cobalt blue candy over the silver/black marble effect (provided I can find a candy dye/pigment that mixes with acrylic clear coat)
6. Acrylic clear coat
7. Lots of wet and dry sanding and polishing.....job done

Hi, ive just joined the forum but have many years experience in the painting and finishing trade.
We usually use sanding sealer under satin or gloss clear varnish, the reason being that it powder sands up beautifully, where as putting straight varnish on raises the grain too much and is very hard to sand. if you cant get sanding sealer, dilute turps based satin varnish 50/50 with turps, it will soak in better and be easier to sand.
We only use sanding sealer when we are using an oil based system. Oil over oil based.
When we use acrilic we use an acrilic based primer then apply top coats of acrylic.

These days because of advances in paints you can mix them keeping in mind some simple basic rules.

1)Metho and thinners based paints dry fast and make excellent primers due to their drying ultra flat.

2)Oil based sealers and primers take longer to dry, usually from 6-12hrs depending on room temp, but can dry slightly shiny or with a slighly oily finish. these need to be sanded thoroughly to remove the residue.

3) Acrilic primers are great but take ages to dry, up to 4 weeks to cure properly, depending on room temp. If you dont let them dry properly when you apply the top coat the primer will siss up or craze. if this happens immediately remove with copious amounts of methylated spirits. let dry then resand.

4) When mixing paint bases i.e. sealers and primers, only apply thin mist coats to build up letting it dry thoroughly between coats, unless using metho or thinners based paints, these can be applied at about2-5 minute intervals but test on an area beforehand to insure adhesion. Ive use oil based primers and top coats and had reactions so it pays to be sure.

5) 20 thin coats are better that 5 heavy coats.

Hope this helps and i havnt been too boring.....

[kimball492]

No it's it's a great insight Nitoburner Thankyou.