Deveco Tri-Kote Hardener
Deveco Tri-Kote Hardener is an additive used with trivalent clear chromates that will increase the corrosion protection of the chromate on zinc plate, typically to exceed 120 hrs protection to white corrosion in salt fog testing.
Deveco Tri-Kote Hardener, used at 5% in a 5% Deveco Tri 108 solution, increases the corrosion resistance to exceed 120 hrs to white corrosion.
A solution of 10% Deveco Tri 108 and 2.5% Deveco Tri-Kote Hardener also exceeds 120 hrs to white corrosion,
Deveco Tri-Kote Hardener, when used at 2% in a 10% Deveco Tri 102 solution, increases the corrosion resistance to exceed 144 hrs to white corrosion.
Deveco Tri-color Concentrates produce only slight or no color to the chromate deposit when used with Deveco Tri-Kote Hardener. Their use is not recommended.
MAKE-UP AND CONTROL:
High-corrosion |
Recommended |
Range |
|
Deveco Tri 108 |
5% by volume |
4 to 6 % by volume |
|
Tri-Kote Hardener |
5% by volume |
4 to 6% by volume |
|
Temperature |
80 oF |
70 to 100 oF |
|
Time |
45 seconds |
30 to 60 seconds |
|
PH |
2.0 |
1.8 to 2.5 |
To lower the pH upon make-up, use Nitric Acid. To raise the pH, use 50% Caustic Soda
High-corrosion |
Recommended |
Range |
|
Deveco Tri 102 |
10% by volume |
8 to 12 % by volume |
|
Tri-Kote Hardener |
2% by volume |
1.5 to 3% by volume |
|
Temperature |
90 oF |
80 to 100 oF |
|
Time |
45 seconds |
30 to 60 seconds |
|
PH |
2.0 |
1.8 to 2.2 |
To lower the pH upon make-up, use Nitric Acid. To raise the pH, use 50% Caustic Soda
ANALYSIS:
1. The Tri-Kote Hardener concentration can be analyzed by testing for PPM Nickel on the A.A.
2.
Deveco Tri-Kote Hardener
contains 1,000 PPM Nickel, so each 1% Tri-Kote Hardener is represented by 10
PPM Nickel.
(PPM Nickel) x (0.1) = % Deveco Tri-Kote Hardener in the chromate solution.
CAUTION:
In case of contact, flush contaminated area with a large amount of water. When handling this product, protective clothing, i.e. rubber apron, gloves, boots, and goggles should be worn.
Read Material Safety Sheet before using this product.
DISCLAIMER:
The information presented herein, while not guaranteed, is to the best of our knowledge true and accurate. No warranty or guarantee expressed or implied is made regarding the performance of any products, since the manner of use is beyond our control. No suggestion for product use or anything contained herein shall be construed as recommendation for its use in infringement of any existing patent and we assume no responsibility or liability for operations which do infringe any such patents. The above includes confidential and proprietary information of Deveco Corporation and is furnished to you for your use solely on products or processes supplied by us to you.