Brass Cold Casting

Description

Product description EXAMPLES OF COLD CASTING USING BRASS POWDER AND RESIN Cold Cast Brass Elephant Cold Cast Brass Horse and Rider Copper Cast Brass Swan HOW TO CREATE A COLD CASTING MIX Combine KastEZ Resin with metal powder. You will need polyurethane resin and fine metal powder. Here we use KastEZ Resin from ArtMolds. The mix ratio is 1/3 of Part A resin, 1/3 of Part B resin, and 1/3 of metal powder. Add about 1/2 of the metal powder to each resin part and mix well. Then combine both resin parts together and mix well again. Then pour or brush into your mold. Pouring out KastEZ Resin. "Cold-Casting" is a term used to describe the process of mixing metal powder with a resin to create castings that give the appearance of solid metal. The metal cold-cast process (also known as "bonded metal is faster and much less expensive than foundry casting of molten metal (lost wax process.) Different metal powders such as bronze, brass, iron, copper, and aluminum can be used depending on the desired effect. What you will need Polyurethane resin Fine Metal Powder Mold - (preferably silicone) CREATING YOUR COLD CASTING To create a metal cold-casting, one-third by weight of the metal powder is mixed into two-thirds of a two-part polyurethane resin until the mixture is thick and creamy. Next, the mixture is either brushed or poured into the mold cavity (usually a silicone rubber mold) until the resin cures. If the gel coat is brushed in, it is backfilled with resin without the more expensive metal powder mix with it. When first demolded, the casting will look somewhat dull. It must be properly burnished to bring out the metal luster. For best results, Mineral Spirits, medium/fine steel wool, and shoe polish are used to bring out the most realistic effect. Begin by wiping down the entire surface of the model with a towel soaked in mineral spirits. The mineral spirits will temporarily soften the plastic slightly and make it easier to bring out the metal shine when buffing with steel wool. Abrade the casting using medium/fine steel wool (0000) until the desired metal shine and luster is attained. Highlight the surface with black shoe polish to add depth and dimension. Allow shoe polish to dry then buff with a soft cloth. To prevent the oxidation of the metal, acrylic spray can be used to protect the finish. Spray the polished piece with two coats of semi-gloss acrylic spray. Below is a comparison of ArtMolds' metal powders for cold casting available through desertcart.com Review: Good for woodturning. - I just used this for the first time, doing an inlay on a baton for a friend. I used thin CA and basically layered it in. I’ve been using key filings from the local ACE Hardware key machine, so this is a step up. The stick turned smoothly and came out great. I’ll definitely be ordering again. Review: Works great - I have no issue with this powder. In using it in cold casting where you dust with it after making a thick slurry in the resin, it shines up just fine. I've also mixed it with the copper powder sold by this company, to get a nice tan color. Just mix the powders first before adding to resin. The key to any cold casting is to ensure you have a top metal powder layer otherwise it will always turn out dull because of the resin itself. The resin mixture needs to be dense enough to avoid soaking up the dusted powder as it will sink into it if not enough powder was used initially in the pour or coating. For reference I'm using Art 'N Glow epoxy resin, to get my results. Also - regardless of vendor, Brass powder is not yellow. If you want a brass color you have to mix it with the copper powder, otherwise it will turn out green from start to finish. I mainly switched brands because this vendor utilizes free shipping through desertcart where alternatively I was paying quite a bit more going with the other company.