caudleryan Posted June 26, 2017 Share Posted June 26, 2017 I think I'm going to try out decanting spray paint for the first time. Now, I know you have to let it sit for at least a couple of hours and not touch it so it can degas. But, what I am wondering is does it matter if you use a plastic jar or does it need to be glass? I also ordered a bunch of bendy straws on ebay. Just hope they are the right size as I am going to try this on a tamiya spray can that's half empty. Is there a particular size that you have found to work best? Thanks for reading and any suggestions or helpful tips would be greatly appreciated! Quote Link to post Share on other sites
murad Posted June 26, 2017 Share Posted June 26, 2017 depends on the base of the product, if it's solvent based i'd say refrain using plastic if able because there is always the possibility of solvent melting the container. Quote Link to post Share on other sites
jbryan911 Posted June 26, 2017 Share Posted June 26, 2017 If you can find them, 35mm film canisters are perfect. They seal airtight so the paint will keep for quite awhile. Quote Link to post Share on other sites
Bob Beary Posted July 3, 2017 Share Posted July 3, 2017 (edited) Here is how I do it. Get a drinking straw and cut a piece about 2” long. Bigger straws work better. Then cut 4 slits at one end about 3/8” long. This results in four tabs. Bend two opposite tabs back and slide the two unbent tabs along the sides of the aerosol head, run a piece of masking tape from one tab around the spray head to the other tab. Then run a narrow piece of tape under the straw and secure to the head and finally one more piece over the straw. This helps to avoid any leaks. I decant into film canisters by sticking the straw into the canister and loosely holding the cap in place. Leave the cap on loosely as the paint has to de-gas. Wait until it is no longer cold to recap it. HTH Bob Edited July 3, 2017 by Bob Beary Quote Link to post Share on other sites
viper730 Posted July 3, 2017 Share Posted July 3, 2017 (edited) Most Straws fit Tamiya Rattle cans well. I add a Blue Tac Seal around the end that connects to the nozzle. This is the easiest and most convenient way to avoid leaks. Spraying into a plastic jar should be no issue but a test first would be advised. Use some Acetone or Lacquer in the container and see what happens... I bought some small containers at the dollar store. Kinda like those rubbermaid food storage containers but much smaller and only hold about 3-4oz. they measure about 1x21/2 and maybe 1in high. They are made from cheap plastic but solvents don't affect them.. Make sure you decant in a well ventilated area or outside. Rattle can vapor as you know is very strong...Let is sit for several hours to a full day before you use it to let all the gases evaporate. The way I like to do it is to set the cap on top with a slight opening for the vapor to escape. Works every time. I also like to add Tamiya Lacquer thinner before I airbrush it onto the model. The Stuff goes on like glass and the only drawback is the color range is not extensive enough...HTH Edited July 3, 2017 by viper730 Quote Link to post Share on other sites
caudleryan Posted July 5, 2017 Author Share Posted July 5, 2017 Thank you all for the replies. Quick question. When the bubbles stop, is the decanted paint fully degassed? Or do I still need to wait a couple more hours just to be on the safe side? Thanks! Quote Link to post Share on other sites
FluffyK Posted July 8, 2017 Share Posted July 8, 2017 Just to be safe I wait till the next day to use the paint. Quote Link to post Share on other sites
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