Self Adhesive Weathering Powders ???

[afvfan]

Got in a thread on another site where the guy posed a question about these. Anyone here have any real world experience with them? The concept sounds interesting.

[wbill76]

I suppose it's a question of what is meant by 'self-adhesive'? My pigments of choice stick to themselves just fine!

[TRM]

Could be the term the individual chose to use describing how the pigments hold on?

[Deano]

My pigments stick to everything apart from where I want to place them !

[afvfan]

T, you were one of the ones on here I had hope might have run across any of these. I did a Google search (self adhesive weathering powder) and found there are the standard pigments that you need fixer for, and then there are the "self adhesive" ones that have a bonding agent mixed in and need no fixer. I also gathered that they were more durable than the others if you chose not to use a top coat.

[TRM]

Interesting Bob! I will have to take a look around then! Of course I rarely top coat after application of the pigs to keep from changing the coloring and often textures.

[wbill76]

Dec 9, 2014 16:45:32 GMT -5 afvfan said:

T, you were one of the ones on here I had hope might have run across any of these. I did a Google search (self adhesive weathering powder) and found there are the standard pigments that you need fixer for, and then there are the "self adhesive" ones that have a bonding agent mixed in and need no fixer. I also gathered that they were more durable than the others if you chose not to use a top coat.

This is what I thought it might be referring to. 'Pure' pigments that are supplied to artists and for paint manufacture don't have any sort of bonding agent mixed into them. Pastels that come in sticks do have such a bonding agent that allows them to be 'painted' on and stay where they go. The original MIG Pigments had an added 'binder' agent included with them that aided in their application as a dry powder and would help them adhere to a surface, especially one that had been treated with a dull coat and had 'tooth' as a result, vs. a standard painted or 'gloss' treated surface. I don't know if such a binder is also present in the Ammo line but I would suspect the answer is yes.

Generally speaking, the role of the 'fixer' is to transform the pigment into behaving like paint and when the fixer carrier evaporates, it 'fixes' the pigment in place as a result. For any pigment that's applied as a dry powder, unless it's got the qualities similar to artist pastels, it's always going to need some form of 'fixer' to keep it permanently in place to allow for handling or similar treatment post-application. I suppose that could be referred to as 'self-adhesive' but is a bit misleading IMHO.

[afvfan]

That sheds some light on the subject, Bill. Thanks for the info. Seems they aren't as miraculous as they initially sounded.

[Rick]

This is one where experimenting and practice with different kinds result in personal preference and comfort zone. I personally like the self adhering weathering materials. I use Tamiya's weathering powders on most every kit. I've used them on armor and aircraft both. They are not the only weathering source I use. They usually go over the oils and help add subtle shading for dust dirt and exhaust. As had been said, practice and playing around is the best way to decide what result you like the best.

Rick

[WigWag Workshop]

Good Day Folks!

I scored a great deal on these a while back Doc O'Briens Weathering Powders

The description states they are "Self-Addhearing", and one thing I noticed is that has they got older, tiny balls started to appear, and I been finding it almost impossible to beak them up back into a fine powder.

Other than that, they do "self-addhear" but since I usually lay a mist of dull coat, not sure if its really matters if they are self-addhearing.


-Steven