Black finish on inside of HF

[Gerald Lawrence]

I have some hollow forms I am almost ready to finish and would like to darken (as in black) the inside. A friend suggested sealer on inside to stop bleed and use acrylic. Would black jesso or acrylic or any black paint be easier to use. HF is about 11 inches tall.

Also contemplating a collar to reduce entry size.

 

[Dwight R Rutherford]

I have used black gesso with good results.

 

[Odie]

I have used black gesso with good results.

It's been a long time since I've used Gesso, but I've used it as a surface preparation for oil painting on plywood, masonite, etc......or covering up a previous painted surface on regular artist's stretched canvas. It's good for giving a texture to the base surface, and could do well to hide a less-than-perfect tool finish in the interior. The color black in places where there is a lack of lighting, also adds to the masking effect.

ko

 

[Charlie Knighton]

black acrylic the black is thin.....even india ink seems thin

black gesso would be my choice......make sure the hf form has dried outside and especially inside....let it dry 3 more days after u think it is dry......the gesso can make a smooth finish tearout.......if that happens ..do couple more coats of gesso to even it out....but it never ends up as u wanted it

 

[Gerald Lawrence]

Thanks for the info. I was hoping it would hide the lower parts of inside as it is spaulted and not cutting well.

 

[Bill Boehme]

Black gesso works fine.

 

[hockenbery]

The difficulty will be brushing it smoothly inside a HF.

The gesso levels well.

Below is a photo of one of Sherry's platters done in sgraffito a technique popularized by Al Stirt.
Gesso works great for this as is sits on top,of the wood.
When Gesso is applied to close grain woods, carving a thin layer of painted wood shows lines with no bleed through.

Sherry uses a foam brush to apply the gesso.

The trick would be painting it on the inside walls evenly. You can leave ridges in the gesso surface if it is applied too thickly or with too much overlap.

I just painted the inside of hollow form black.
I used an airbrush an opaque black. I did not see bleed through but it could happen.
The airbrush paint dries quirkily.

Al

 

[Pete Blair]

As Al says, if the opening is not too small I usually just spray a coat of flat black inside after covering the outside near the opening with tape or what ever. If a quick dry spray is used it dries on the surface with no bleed through.

 

[Hal Taylor]

I use gesso a lot in my deep hollow forms when it's difficult to sand, etc. I use a long handled artist brush to get to the bottom, etc. After it's applied you can't see squat inside - cannot see gesso overlaps or even my sometimes poor hollowing.

 

[Bob Chapman]

I use two long handled brushes, one left 'as is' for the bottom and lower sides and the other with the handle cut, near the ferrule, at approx. 45 degrees and then glued together at 90 degrees with CA glue. This is ideal for getting the upper parts of the sides. The angle can be altered to get wherever. With a small(ish) hole it's impossible to see inside when its painted black.

 

[Charlie Knighton]

u can add fibre dye to white gresso for different colors.....the length of time before applying after mixing can make a difference in the shade.....easier than airbrush

 

[Gerald Lawrence]

This has given me more options than I thought were possible. Had never dreamed of using on the outside as Al talked about.