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  • DrAhmed posted an update in the group Group logo of Q/A & Help GroupQ/A & Help Group 8 years, 1 month ago

    Long time no post for me. But I’m just wondering, is there any special type of soap/detergent to use when washing runners?

    • You can use any soap that you also would use for washing your dishes. Just make sure the water isn’t too hot. If it’s too hot for your hands, it’s too hot for the plastic. If the water is too hot, you could warp/deform the plastic. Hope this answers your question

      • @teetee580 Am I still able to wash the parts after I am done sanding putty and seams lines away? I ask because I want my parts to be clean from dust and other particles before I get to priming and painting.

        • @iamMajesty, Of course you can wash them after sanding, putty and seam line removal. Because of the putty, I would only soak them in lukewarm water with a really mild soap. Even rinsing of with clear cold water should get rid of dust on the pieces. Just make sure you dry them off with a clean and soft towel. Any traces of dried water can leave minerals on it which can effect your paint job

          • @teetee580 What would a really mild soap be? I have the regular dish soap but is that too harsh?

            • @iamMajesty That’s a very good question. Anything with lemon in it is deemed too aggressive. If your dish soap doesn’t include some lemon extract, you should be fine.
              Some manufactures advertise with soap which is mild to your hands. This also a mild soap, EXCEPT when, again, includes lemon extract or something like aloe vera, or some other kind of chemical which is also found in hand or face cream. Like Oil of Olaz and that sort of thing. This is a sort of oily substance which can leave some traces on the plastic, resulting in an uneven bonding of the primer or paint on the surface. Especially on the new Poly Styrene. This a less denser plastic which can suck oil in it.
              Should you be hesitant in using the soap you’ve got, I would put some putty on an old runner, make sure the surface is a bit rough so it sticks on better as you do on your model, let it dry for the amount of time the manufacturer recommends and put it in the soap. But if there are no substances in it as mentioned above, you should be fine.
              Sorry, before I forget, always make sure there are no traces of soap on the plastic parts anymore, it could effect it the same way as an oily substance. In order to achieve this, just rinse the plastic thoroughly after washing it.
              Hope this answers your question in the way you hoped. Of course, if not, just ask. Happy building

    • Thank you very much, this really helped so much. I actually had lemon based detergents/soaps i was going to use. But another question; do you recommend washing runners that aren’t going to be painted?

      • @DrAhmed You’re welcome. Glad you read it in time.
        For your question, if you’re not planning to do anything with them, not even panel lines, decals and or a top coat, I wouldn’t do it. Though if you are going to do wash runners in the same kit, you can go right ahead. It will never hurt to do so.
        But again, for saving time you could skip out.
        Just keep in mind, if your question implies the inner frame, that if you are going to use a top coat of whatever sort on the model and you are going to do it limb by limb, clear coat will be sprayed on parts of the inner frame. And not have them washed could effect the result of that coat.
        Should you ,for example, choose do paint the parts (or just apply decals and a top coat) individually then there is no real reason to wash the parts that are not going to be painted.
        Hope this answers your question. If not, please feel free to ask for clarification. And of course, you’re always welcome to ask other questions. Good luck and happy building