Need high-temp rubber coating

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Discussion Overview

The discussion revolves around finding a suitable high-temperature rubber coating for aluminum rods to enhance friction in environments reaching up to 200°C. Participants explore various materials and coatings that could meet these requirements.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about high-temp coatings for aluminum rods to increase friction coefficient.
  • Another suggests using a high-temperature silicone as a potential solution.
  • A different participant raises concerns about silicone's adhesion to aluminum, proposing anodizing as a possible improvement.
  • This participant also recommends a nickel layer, noting its high coefficient of friction and resistance to galling.
  • Another suggestion includes a Belzona coating, which is noted for its high-temperature capabilities but is also described as expensive and potentially limited in texture modification during application.

Areas of Agreement / Disagreement

Participants present multiple competing views on suitable coatings, with no consensus reached on the best solution for the specified conditions.

Contextual Notes

There are limitations regarding the performance of aluminum alloys at high temperatures, and the effectiveness of different coatings may depend on surface preparation and application methods.

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Need high-temp "rubber" coating

Hey I'm looking to coat some 0.5" aluminum rods with some sort of coating to increase the friction coefficient ("tackiness" I believe it's called). It will be used in high temperature environments of up to 200C. Does anyone know of such product?

I tried calling this company but that product can't get anywhere near 200C.
http://www.plastidip.com/home_solutions/Plasti_Dip

Thanks!
 
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A high-temperature silicone?
 


It's just that silicone won't adhere to aluminium. Maybe things get less bad if you anodise first.

My suggestion is a nickel layer. These have a high coefficient of friction, and better, they don't gall.

You already know that aluminium alloys are capable of nearly nothing at 200°, do you?
 
could try a belzona coating depending on what your doing

http://www.belzona.com/products.aspx

They are usually painted on smooth, but I can imagine you can't make it rougher when you apply it. Also expensive but good for temps up to 180°C
 

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