The aluminum strip quality is qualified
Situation: The quality of aluminum strip is qualified. But because of the improper storage environment or unfavorable working condition, greasy dirt and dirty marks are attached to the aluminum spacing strip.
Solution: When the aluminum strips are not oxidized, the greasy dirt is relatively easy to clean up. Before using butyl sealant, clean up the surface of the aluminum strip will effectively prevent the defects occur. The simplest cleaning method is to wipe the strip using cotton cloth with alcohol.