HiModel 4s-8s 200 amp esc

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  • rockwerks
    Senior Member
    • Jul 2008
    • 772

    #211
    I found the two-part thermal epoxy to work great
    which epoxy? what brand?
    an RC rock crawler lost in a sea of boat parts.........

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    • questtek
      Senior Member
      • May 2009
      • 556

      #212
      Originally posted by rockwerks
      which epoxy? what brand?
      You can see the pics attached. The cure time is about 24 hrs room temp but you can boost it to just an hour or two if you elevate the temp. I provide more details in my thread on ESC cooling in the FE questions and answers forum.
      Attached Files

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      • BakedMopar
        No Mo Slipah
        • Sep 2009
        • 1679

        #213
        I tried to skim through all the pages and still wondering if you could waterproof with liquid electrical tape. It's not conductive. What's your thoughts about this?
        If all of your wishes are granted, many of your dreams will be destroyed!

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        • Jeff Wohlt
          Fast Electric Addict!
          • Jan 2008
          • 2716

          #214
          That stuff should work fine. The problem I see is will will hold heat in.

          Still should be fine the epxoy 270 is about the same...anything on them will hold some heat in but keeping fets cool is the key.

          I even thought of just spray undercoating in the auto section but not sure the stuff will eat anything without testing on something first.
          www.rcraceboat.com

          [email protected]

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          • rockwerks
            Senior Member
            • Jul 2008
            • 772

            #215
            Originally posted by Jeff Wohlt
            That stuff should work fine. The problem I see is will will hold heat in.

            Still should be fine the epxoy 270 is about the same...anything on them will hold some heat in but keeping fets cool is the key.

            I even thought of just spray undercoating in the auto section but not sure the stuff will eat anything without testing on something first.
            spray on truck bed liner
            an RC rock crawler lost in a sea of boat parts.........

            Comment

            • Jeff Wohlt
              Fast Electric Addict!
              • Jan 2008
              • 2716

              #216
              Yes but it has little particles in it...sand or soemthing but it would be nice to be able to drop a brick on it and have it still run
              www.rcraceboat.com

              [email protected]

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              • questtek
                Senior Member
                • May 2009
                • 556

                #217
                Originally posted by BakedMopar
                I tried to skim through all the pages and still wondering if you could waterproof with liquid electrical tape. It's not conductive. What's your thoughts about this?
                I would think twice about using liquid electrical tape. The purpose is to provide insulation. It does a great job with electrical insulation. Thermal properties may be a different story. If I were to design a product like liquid electrical tape I would wat it to have good thermal isolation properties also. Remember, copper wires(or any wire for that matter) heats up when current passes thru them so for this application thermal insulation would be a design feature plus.

                You could do some tests on it, but the recommendation to use a 2-part epoxy that was designed specifically for electrical isolation but good thermal conductivity is what I would stick with. Rubber based products like bed insulator materal would also probably have poor thermal conductiity.

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                • Jeff Wohlt
                  Fast Electric Addict!
                  • Jan 2008
                  • 2716

                  #218
                  Very true. Hereis the make up of 270



                  It is certainly better to use something made for these components.
                  www.rcraceboat.com

                  [email protected]

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                  • Alfa Spirit
                    Fast Electric Addict!
                    • Oct 2009
                    • 2131

                    #219
                    I made water cooling on my HiModel GX 200 using a 3M Thermally conductive tape

                    3M Thermally conductive

                    This 3M product looks fine. What is the best way to waterproof my ESC ? Thanks



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                    • NativePaul
                      Greased Weasel
                      • Feb 2008
                      • 2760

                      #220
                      Where do you get the black cooling tube Alpha?
                      Paul Upton-Taylor, Greased Weasel Racing.

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                      • Brushless55
                        Creator
                        • Oct 2008
                        • 9488

                        #221
                        you could use vacum line from an auto parts store
                        .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

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                        • Alfa Spirit
                          Fast Electric Addict!
                          • Oct 2009
                          • 2131

                          #222
                          This is a neoprene tube for gasoline very strong and nice looking, 3mm inside and 6mm outside

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                          • Brushless55
                            Creator
                            • Oct 2008
                            • 9488

                            #223
                            I'm on my way to try out some auto vacum line since they are two blocks away and use it on my CAT UL-1 for the all black hardware look
                            .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

                            Comment

                            • ozzie-crawl
                              Fast Electric Addict!
                              • Sep 2008
                              • 2865

                              #224
                              usally to water proof the esc some form of conformal coating is used.
                              what i use comes in a spray can, i give it a few coates and let dry in the sun for acouple of hours, then take it out of the sun for about 1 hour this lets it harden. then i sand the conformal coating of the top of the fets and add the cooling plate

                              Comment

                              • Brushless55
                                Creator
                                • Oct 2008
                                • 9488

                                #225
                                Originally posted by ozzie-crawl
                                usally to water proof the esc some form of conformal coating is used.
                                what i use comes in a spray can, i give it a few coates and let dry in the sun for acouple of hours, then take it out of the sun for about 1 hour this lets it harden. then i sand the conformal coating of the top of the fets and add the cooling plate
                                What about electrical tape spray?
                                .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

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