MARBLERSLiquid Colorant 11oz (310g) [Vivid Blue] | Water-Based | Dye, Tint, Pigment | Odorless | Non-Toxic | For Concrete, Cement, Mortar, Grout, Gypsum, Water-Based Paint, Jesmonite, Plaster

I've Had a tough time finding a good black pigment for water based urethane varnish - well folks, this is IT! - so easy to mix - so smooth/dense/opaque.. and really, REALLY BLACK!!

Easy to use and great product!

I had a 5 gallon bucket of water sealant paint in a light grey from a previous project. I needed a dark gray, almost black color to repaint the areas previously painted light gray. I used this colorant and got the shade that I needed. I saved myself the trouble of having to buy more paint.

I actually added this to a large bucket of paint to deepen it. It worked well

I've been making trinket dishes with a jesmonite alternative (gypsum) and I was looking for a black that wasn't expensive and that wasn't grey. I stumbled across this so I decided to try it and It's such a nice deep black! If you use gypsum don't buy the over priced pigments!!! This is beautiful 😍 I hope you guys have more colors available soon I need all of them!!!

We used this product to dye the concrete black where the material meets and blends with a blacktop driveway.By using this product, the concrete foundation posts will be mounted to black concrete piers not white ones. It is an elegant fix for a cement that would have had to be painted later.As a bonus, this system should last longer, perhaps forever?

Accurate color and goes a long way. Very impressive. Super fast shipping.

I use this for tinting Plaster of Paris for molding sculptures only coloring that has given me true black results.

I make gypsum pots, and for the whole pot I just need one drop of this product to make it grey. 3-5 drops literally!!! to make it totally black. I am very happy with it.

Used to darken some light grey tile grout - whilst not black it did a good job