You can tell from the title of this post that I have some bad news! My resin casting test of the dollhouse Entry Floor was a total failure!
|Photo Courtesy of Public Domain Pictures.net|
- First you must get Part A and Part B into the right proportions. This I did...and did exactly right the first time...I know this was not my problem, at least at the beginning. Depending upon The Resin type you are using, the proportions will vary, but for all of them, the ratio is critical. I used 'Amazing Clear Cast',, which is an Epoxy Resin by Alumilite Corporation. This epoxy resin required a 1:1 ratio. No mystery there!
- Any non Silicon molds WILL require a mold release agent. I have already revealed that I forgot this step, so I knew that I would probably not be able to remove the mold from The Resin...but that was OK..this was a test! Right?
- Don't use Transparent Resin Dye in Larger Castings! I used Transparent Resin Dye in my last couple of pours, and come to find out, The Resin dyes can cause problems in larger pours. One of the men I talked to says he will not use resin dye with clear resins, because it tends to create curing problems. Now obviously, it must work in smaller resin castings, because I see many examples on the Internet..more to learn there!
- Watch out for old or separated resin parts. I learned that resins can separate over time...and that it is important to shake each bottle and ensure that The Resin is fully mixed in each bottle prior to mixing the two parts. It is also possible to get OLD resin directly from the store...since resins are scary to folks, the turnaround time on store shelves can be slow...So, testing is a GOOD idea all the time! Not just for us newbies!
- Mixing Cups must be CLEAN. As in...no resin residue left for EACH pour. I didn't clean out the resin cups extremely well after each pour...you may remember that I did multiple pours...reasoning...will cure better...WRONG answer! Multiple pours might have been fine...but since I didn't clean up each pour well, it may have built up, causing me to have the wrong ratios in later pours. A word to the wise... Resin is INCREDIBLY difficult to clean up! Have lots of clean mixing cups available so you don't have to worry about it, and you can throw away the mess!
- Mixing time...don't skimp on mixing. I think THIS is where I went wrong. The directions don't tell you this, but it is important to mix Part A and Part B of the resins for approximately 5 minutes! After one or two minutes, The Resin parts appear to have reacted to one another, The Resin clears, and you might (I did) think that The Resin is ready to pour. NOT SO. Mix for a full 5 minutes or so before pouring... The Resin is still in the process of reacting.
- Ensure that the Mold Release Agent is applied and dry! This takes a while, so start well before you want to pour. Nothing tough about that! But if it is not dry, it may cause issues with the pour.