The first question to answer is what is a primer for? Here are some answers:
- Substrate adhesion – maximising adhesion between metal and the protective paint.
- Increasing durability of the coating system.
- Preventing contamination on the metal staining the topcoat.
- Sacrificing itself to provide galvanic protection.
So, primer has lots of benefits, and zinc primers are used when protecting metal to maximise on these benefits.
Here you’ll find a selection of single and two pack primers