Surface Preperation - Galvanized Metal
Pretreatment for Galvanized Metal
(please note that various types of galvanizing may require different prep…always contact your Endura representative prior to selecting a pre-treatment for galvanized substrate)
Precautions:
WARNING! CAUSES EYE AND SKIN BURNS. CAUSES RESPIRATORY TRACT IRRITATION. HARMFUL OR FATAL IF SWALLOWED. ASPIRATION HAZARD-CAN ENTER LUNGS AND CAUSE DAMAGE. USE ONLY WITH ADEQUATE VENTILATION. KEEP OUT OF THE REACH OF CHILDREN.
See SDS and TDS for complete safety and application information.
Step 1 – Preparation – Degreaser 10:
Degreaser 10
1. Read the Technical Data Sheet and Safety Data Sheet before using Degreaser 10 and assure that you have and are wearing all the recommended Personal Protective Equipment (PPE) prior to commencing use.
2. If the surface is hot, wet, and cool down before applying Endura Degreaser 10.
3. Apply the Degreaser 10 liberally to the surface with brush or low-pressure spray, keep the surface wet for 5 -10 minutes and using a maroon nylon scuffing pad scrub the surface during this time.
4. Rinse with plenty of clean water and DO NOT let the Degreaser 10 dry on the surface while you are cleaning. For larger surfaces, rinsing with a power washer (1500psi minimum) is recommended.
5. Once well rinsed, any seams, crevices or rivet areas should be blown down with clean compressed air.
6. Once the surfaced has been properly rinsed and dry the final part of the preparation process can be completed.
Adequate protective equipment and clothing such as rubber gloves and protective eyewear are recommended.
Do not allow the cleaner to dry on the surface. When completely removed, the surface will no longer foam when rinsed. Water should drain off without any signs of a water break or water beading (areas showing water break or water beading must be redone). Continue until entire surface is cleaned. Any seams, crevices or rivet areas should be blown dry with clean compressed air. Allow the surface to dry thoroughly before applying coatings.
Step 2 – Option 1 – Application – Neutralizer 20:
- Read the Technical Data Sheet and Safety Data Sheet before using Neutralizer 20 and assure that you have and are wearing all the recommended Personal protective equipment prior to commencing use.
- If the surface is hot, wet, and cool down before applying Neutralizer 20.
- Apply the Neutralizer 20 liberally to the surface with brush or low-pressure spray, keep the surface wet for 5 -10 minutes and using a maroon nylon scuffing pad scrub the surface during this time.
- Rinse with plenty of clean water and do not let the Neutralizer 20 dry on the surface while you are preparing. For larger surfaces, rinsing with a power washer (1500psi minimum) is recommended.
- Once well rinsed, any seams, crevices or rivet areas should be blown down with clean compressed air.
- Once the surfaced has been properly dried apply the primer within 8 hours, high humidity may reduce this time.
Zinc oxidizes quickly, If the time between preparation and priming exceeds 8 Hours, the preparation process must be repeated.
Adequate protective equipment and clothing such as rubber gloves and protective eyewear are recommended.
Step 2 – Option 2 – Application – Brush Blast
Brush Blast Cleaning: SSPC-SP7, this blasting method cleans less aggressively than an industrial blast clean. A brush-off blast cleaned surface is described as a surface free of all visible oil, grease, dirt, dust, loose mill scale, loose rust, and loose coating when viewed without magnification. The surface may still include profiled and tightly adherent mill scale, rust, and coating.
Zinc oxidizes quickly, If the time between preparation and priming exceeds 8 Hours, the preparation process must be repeated.
When Brush blasting a galvanized metal surface it is important to remove only the top layers of zinc oxides to reveal clean a clean bright zinc surface. Sandblasting too aggressively will remove the zinc from the substrate and eliminate its corrosion protection properties.
For Quantitative Soluble Salts Test Information Click Here
Galvanized Metal – Surface Preparation Instructions
To download a PDF copy of these instructions click here
