Heat Resistant Paint in Powder Curing Oven

Forgive me if I do not understand your question. Does Nano technology heat resistant paint, require curing at high temperature? What curing temperature is necessary, for curing Nano technology heat resistant paint?

Joshi,

Thanks.

Answer for your first question is no. Answer for second question is no idea.

I think the question is not clear for you. We make the ovens which the frames are made by GI sheets. After fabricating the oven we use a heat resistant paint and we do not cure the paint. It is a liquid paint. Once this is finished we use the oven to cure the articles that is powder sprayed to cure the powder.The maximum temperature that we heat the oven is 250 De Cen max.

I want to know when we use the nano technology heat resistant paint. I need to know how much of heat we can save in order to get an advantage on nano technology.

I could not locate any info. on this. In the absence of info. I assume it will cure at ambient temp. Take it with a pinch of salt. I hope, veterans of this forum will soon join in & enlighten us.

It's an oven for drying paint. What would it matter if the inside were not painted at all?

Thanks for your comments.

if the inside is not painted, there will be a heat loss through the steel. I am trying to prevent that heat loss using nano technology paint. In that case I can save lot of energy.

The technology you speak of I have worked with in some experimental capacity. Nano tech is not in itself going to as you suggest do anything but be more durable. If you begin to add some of the heat reflecting colorants made by several manufactures you might begin to see some savings in you ovens. Now having said that, these colorants only reflect UV. So your limited even in using this to save on heat. Especially in the lower ranges used in curing powered paint, 250 - 400 deg F.

Good Luck

That brings up a question, what reflects infrared? That would be good to know.

Without going into this to deeply, I will explain in lay terms. Pigments are used to change the color of various paint and inks. But for our discussion we will stay with paint. Most colorants are shaped like grains of sands. Odd shaped and really do not fit together well. Thus allowing UV to penetrate through to the surface which was coated. This allows the surface temperatures of the substrate to rise. This rise in temperature can be as high as several hundred degrees depending on how direct the sun light is hitting the surface. UV block pigments are of a metal formation (remember simple explanation), which by design lay flat to the surface. Laying flat to the surface allows them to over lay each others body and thus blocks the UV lights from penetrating into the subsurface. These platelets of color then send a large percentage of UV back out and away from the substrate as well.

We typically see less then 50 deg F of heat rise, when these materials are used. PVC building products are one area of extensive use of this technology's.

This is a crude explanation of these materials. You can do a goggle search and find more info on the net.

Thanks.

Yeah, we use the reflectors in the IR ovens. In the IR ovens we do not save the energy. As the heated air will sent out through a cylinder. Because by IR oven the IR rays will heat the article, so heated air which ever comes up will sent out.

How efficient are the reflectors? On space craft gold foil is used to reflect something, probably IR. Heat buildup is a problem there, and must be radiated away. I just wondered what was efficient in day to day use down here. Insulators don't really reflect, they are just poor absorbers.

Mirrors reflect visible light, but probably heat up from the IR content, or do they? Another noble metal there.....

Sounds like OP is talking about a paint-on insulation using nanotechnology, here's alink to one firm, there are others:

http://www.nansulate.com/thermal_insulation_data.htm

I've never used the stuff but if (and it's a big if) their claims can be verified it would help lower the energy consumption in your oven.

Thanks.

I will go through this company and see.