Runboard.com
You're welcome.
Main | How To | Vehicles | Gallery | Trade | AG

runboard.com       Sign up (learn about it) | Sign in (lost password?)


 
Sylar79 Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user
Global user

Registered: 11-2008
Location: South Africa
Posts: 223
Reply | Quote
Pigments


Hey guys

something that i've always wondered...

what are the pigments that are used for urethane pieces. I've noticed allot of times people list the pigments they use with the specific code. what i would like to know is... are they urethane specific? do they have to be polyols for non metalic colours (smoothon is limited in colour choice, plus Jay mentioned in the past the black has too much green in or something)? are these the only kind of pigments you can use? are there common things you can substitute like paint powders that can be used without affecting cure inhibition? for example i've always wondered if you could use the powder used in powdercoating since you get polyurethane based pigment.


I have messed around with metalic powders but am not a fan of having to scuff the surfce to get the metallic effect. that and the added weight due to the mount you have to add (6:1 powder to resin ratio). are these powders primarily used to get metalic effects? are there alternatives?

---
Neil
The Cave is where its at
3/10/2010, 5:21 am Link to this post Send Email to Sylar79   Send PM to Sylar79
 
resinsamurai Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user
Global user

Registered: 01-2009
Posts: 1130
Reply | Quote
Re: Pigments


short answer

usually you would use the pigment made by the same maker as the rubber, but some times, depending on the pigment maker you can use one with the other.

SO black is green based, BJB and Hastings use a red based Black.

you can only use oil based pigments with urethane
and water/latex based pigments with acrylics or foam latex


powder pigments used in the powder coating process is a powdered lacquer or polyurethane with additives
in it that can be magnetized and melted under high heat, these would not work well in rubber because they contain metals that urethane and latex both hate. So your piece would either not cure or if it cured it would immediately begin to degrade, so the ones for rubber or plastic are very specialized.

metalics or any other color finish must be painted on, the embedded scuff down technique is pointless and no one should ever suggest it

if you want a finish to look amazing, and its absolute best, then it must be layered in very thin washes of colors or metalics, until the desired finish is complete.


there is a great deal more to it than I have said here, and it takes a ton of practice and study to use them correctly in order to get the deepest coloring and finish possible

anything else is unacceptable~



---
And what’s ten years? Well, it’s roughly how long it takes to put in ten thousand hours of hard practice. Ten thousand hours is the magic number of greatness.
6/23/2010, 6:42 pm Link to this post Send Email to resinsamurai   Send PM to resinsamurai
 
GregoryGruesome Profile
Live feed
Blog
Friends
Miscellaneous info

Registered user
Global user

Registered: 08-2011
Posts: 7
Reply | Quote
Re: Pigments


I have a pigment question- I'm wanting to make a Clooney type cape and cowl, with the cape being latex and the cowl being urethane. Is there anything I can use, tint wise, for both so the color will be the same? It would also need to be able to be mixed into paint to airbrush the leather gloves, trunks and boots.

I know that's a REALLY tall order, but any help would be most appreciated. I'm sorry if I'm hijacking.
9/20/2011, 2:01 am Link to this post Send Email to GregoryGruesome   Send PM to GregoryGruesome Blog
 


Add a reply





You are not logged in (login)
Main | How To | Vehicles | Gallery | Trade | AG