M2 Marine Grade
Rockford’s M2 marine grade standard takes into account the devastating effects of the outdoor environment and takes extreme measures to ensure optimum performance.
ASTM B117 – Salt/Fog & D439 – UV Test Standards
ASTM B117 salt/fog test standard provides accelerated aging in a controlled corrosive environment to produce relative corrosion resistance information for specimens of metals and coated metals.
ASTM D4329 test standard is intended to induce property changes associated with end-use conditions, including the effects of sunlight, moisture, and heat.