Went to my local Hobby Lobby to buy some AlumiRes RC-3 black. There were two boxes there but neither box said black or tan so I didn't buy any because I do not want tan and I was unsure what these boxes contained. I openend the boxes and looked and both boxes appeared to have the same product but again I'm not sure which that is. Does it specify on the box which color it is and I just didn't see it? Thanks
RC-3 does not come in a specific color...you will need add either Alumilite's Black Dye or Black Alumidust. Other possibilities include spray painting the rubber mold Black as the resin will pick up the Black paint as it cures or simply painting what ever you cast w/ black Paint after the resin has cured. If you choose to paint the resin piece after it has cured , be sure and wash it in warm water...I use Dawn dish washing soap to cut thru the petroleum residue that may be present.
RC-3 does come in white - I've used it before and it was clearly labeled as White on the box. But if there was no actual label of the color on the box then it 9 times out of 10 is the original color of tan. That being said, like Brian said - you can make it into black by using paint or dye (be sure to check out the instructions on the Alumilite web site to be sure to get the best results). But it does come in black - it's listed on the Alumilite web site, Hobby Lobby normally only carries the original color of tan in store but you might luck out sometimes and catch the black there.
Yikes ...I don't know how I managed to forget about the Black and White RC 3...my bad.... I do now recall a few years ago entertaining the idea of pouring some Black for a project, but over the course of time spaced it off.
I'll have to take a closer look at what's available in the retail market as I cant recall ever seeing a Black or White version......thanks for jogging/kick starting my memory none the less.
If it's formulated anything like the White, you have a good chance of liking it. The white I used had a great uniform coloring that was a very nice -bright- white.
Hey I forget things a lot when I don't work with them every day, I even forget what worked on one thing when I'm faced with a new way of doing something. I only thought about the White because I used some not long ago...
Been casting with Alumilite White for years w/o any problems. Recently cast with Alumilite RC-3 Black. Was expecting it to cure black. Instead, got this funky gray. OK, figured I'll have to paint it. Used 1/2 of the 2 gallon kit. Started casting with the remaining kit half and now it's curing black. What's with this stuff?
I'm pretty sure you have to shake the "A" part first. I always do. I had been dyeing RC-3 Tan with some black powdered dye I bought on eBay, it came out pretty black, but the RC-3 black put it to shame, so that's all I use now. It's very black and glossy, exactly what I need.
Rodak is right, you need to be sure to shake it first as it may have settled a bit and shaking remixes the formula back to how it should be. I've gotten into the habit of shaking all the resins (side A and B) the first time I use them that day. I only need to do it once and they're good for the rest of the day. It's just one extra step but it does make a bit of difference.