Pure Aluminum on GFRP Composite Substrate
04-20-2014, 12:49 PM,
Pure Aluminum on GFRP Composite Substrate
Dear All,

Is there anyone who experience with application of pure aluminum powder on Glass Fiber Reinforced Plastic substrate, using powder flame spray method?

Please advice for surface preparation (blasting and preheating) and spray parameter!

Best Regards,
A. Sahid
04-21-2014, 08:14 AM,
RE: Pure Aluminum on GFRP Composite Substrate

I am having experience of Al metallizing with twin wire arc process on composite material.

We have to carry blasting at low pressures with fine grade Aluminum Oxide and kindly note that it always depends on hardness of composite material, in general composites are having low hardness.

Pre heating is not required for composites because the melting point of the composites will be very low.

Process parameters are same as we are applying on any metal. But we can not develop thicker coatings on composites because of poor surface preparation, the composites easily wear off during grit blasting rather than roughening the surface.



04-24-2014, 12:38 AM,
RE: Pure Aluminum on GFRP Composite Substrate
Hi Sreenivas,

How about using powder flame spray method? I got too hot to the substrate.

A. Sahid
04-25-2014, 02:49 AM,
RE: Pure Aluminum on GFRP Composite Substrate
Hi Sreeni, Achmat:

  1. Powder Flame Spraying, suppose you are using a 5PII or 6PII torch? If so, in my experience the substrate will be too high. Eutectic used to have a torch, the Terodyn 2000 with a LT aircap that might have worked for Aluminium on Fiber Glass. However mostly would not use Al with Powder Flame.
  2. Wire Flame, I think this is your best choice, as Al wire is commonly available, and you have a Wire Flame System. Main thing is to keep the substrate from causing dust or overheating. Bonding should be good.

(04-24-2014, 12:38 AM)ahmadsahid Wrote: Hi Sreenivas,

How about using powder flame spray method? I got too hot to the substrate.

A. Sahid

Stephen James Booth
Indonesia WhatsApp +6281905603262

05-01-2014, 01:34 PM,
RE: Pure Aluminum on GFRP Composite Substrate

Powder flame spray is not a good process for this as temperature is hard to control. If you must use this, I would consider trying to use the crossed air jets in a similar manner as that used for spraying ceramics.

It is vitally important to keep the temperature of your composite very low during spraying.

Possibly Related Threads…
Thread Author Replies Views Last Post
  Substrate preparation VS bonding strength plzc126330 2 2,140 01-09-2018, 03:48 AM
Last Post: plzc126330
  Coating for Epoxy substrate webrits 2 3,082 03-20-2015, 03:09 PM
Last Post: Laurent
  Thermal Barrier Coating Aluminum Substrate for corrosion resistance alaskangrown 4 5,264 03-02-2015, 06:43 PM
Last Post: alaskangrown
  Bonding for Wire Flame Spray using Aluminum pure wire iwan-sedaryawan 3 4,705 12-14-2012, 08:00 PM
Last Post: MichiganMan
  coating aluminium composite panel nicubila 2 7,512 12-13-2010, 08:14 AM
Last Post: Fydor75
  Spraying on Magnesium substrate Madila Awalini 9 7,606 07-05-2010, 04:01 AM
Last Post: Madila Awalini
  spray and fuse substrate problems pakalano 2 6,213 03-26-2009, 11:44 PM
Last Post: pakalano
  composite abradable coatings wasif 1 4,100 02-26-2009, 03:13 AM
Last Post: Gordon
  Black coated aluminum fin & Hydrophilic coated aluminum fin comparison Lumbantoruan 3 11,463 01-30-2009, 07:51 AM
Last Post: Lumbantoruan
  Removing TCC coating from INC625 substrate mightyatom 1 5,978 10-01-2008, 09:41 PM
Last Post: Gordon
  Spraying Pure Aluminium J_rock 1 4,733 08-05-2008, 02:51 PM
Last Post: Gordon
  Sand Blasting on Titanium Substrate ykang 8 18,737 05-28-2008, 09:36 AM
Last Post: ykang
  Alternative material for pure aluminum powder Madila Awalini 1 5,299 03-25-2008, 03:08 PM
Last Post: Intel55
  Stress in the substrate Vijay Deshpande 1 4,440 06-10-2007, 07:11 AM
Last Post: Gordon
Question Coating for ceramic composite tool murt100 3 7,057 02-07-2007, 06:36 AM
Last Post: drramc

Users browsing this thread: 1 Guest(s)

Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd