Hitchcocks Forum

Many moons ago, there used to be available Hermetite heat dispersant paint, it doesn't seem to exist now, does anyone know different or know of an alternative. It was very thin and required no primer.

Hi guys------- TONYOLGIT, It was Hermetite POT BLACK, alas Hermetite products have finished now, but you might give this a go, it looks similar }------- http://www.ebay.co.uk/itm/GRANVILLE-CYL ... 20cf472c5b --------------------- or if you prefer a spray, then give this a go}----------------- http://www.ebay.co.uk/itm/Hycote-VHT-Pa ... m2a2a90996 ---------------

Auto accessories stores should sell engine enamel.

Hi guys,Mr "H" has Highcote VHT cylinder black aerosol listed under paints

Yorkie

must concur with alan ,granvilles cylinder black is excellent stuff from just down the road in thurnscoe south yorks

--------Sorry YORKIE, Yes---I'd missed it when checking the catalogue before entering that last post of mine......NICE Mr H, PLEEEEZ don't hit me ----------------- again !!!!

Sorry guys but the paint was actually called Heat Dispersant Paint and it did what it said on the tin. Engine enamel is much thicker and VHT paint often has a ceramic base, both tend to insulate thus defeating the heat dispersing capacity.

Hmmmmm. Heat dispersant paint? How would that work then I wonder. Engine gets hot in use, that's OK. Rough finish on an iron or aluminium barrel increases surface area by a factor of about 3, that's OK. Air passing over surface aids cooling, that's OK. Dark colours radiate heat better that light colours, so painting the barrels black is OK. So far all is OK, so how does heat dispersant paint add to this? What physical characteristic does it have to increase the effect of dark colours (in this case black) and improve upon the air cooling function? IMHO the name is like something off of a bottle of snake oil. I have used many different black paints on barrels over the decades and none does anything but change the colour and reduce the effects of oxidation on an iron barrel. My Commando has silver barrels and it seems to make no difference to cooling. The problem is usually finding a black paint which will stay on the barrels. After all most cylinder heads are aluminium castings with no black coating and that seems to be OK, particularly when we remember that the head is where all of the heat is generated. I will be intrigued to see an explanation of how "heat dispersant paint" works. Incidentally should that be "heat dispersing"?

Hi guys-------- TONYOLDGIT, I've just found this on E-Bay>>>>>>>>>>>>>>>>>>>>> http://www.ebay.co.uk/itm/2-old-hermeti ... 252FqwUsJA

Yes its made by Simonise now works well used in on my 500 Bullet iron barrel. see link below. Copy & paste.

http://www.amazon.co.uk/Simoniz-Motorcy ... B003VGPMNA