How To: Proper Surface Preparation for Metal Bonding

Achieve optimal bond strength with proper surface preparation of your metal. We'll demonstrate how in this captivating video. Visit Master Bond  for more information.

Transcript

00:00:01 [Music] thank you for joining us today we are going to demonstrate how proper preparation of a metal surface can ultimately determine how effective the bond strength of your application will be let's start by applying a drop of water to this metal strip and see what happens the drop of water is beating which means that the surface is not

00:00:28 properly prepared and may contain a contaminant like paint lubricating oil or grease next let's roughen the metal strip with a piece of [Music] sandpaper then we'll decrease the surface with acetone again we will apply a drop of water to see what happens now the water is spreading which means

00:01:07 that the surface has been prepared and the adhesive is ready to be applied there are three major methods for removing surface contaminants degreasing chemical cleaning and abrasion for the best results using a combination of these techniques may be recommended here is a bondage joint that was not properly roughened and contaminated before bonding you can see that the adhesion is

00:01:33 not good here is a piece that was properly roughened and clean before bonding with a two-part room temperature curing adhesive clearly it's much stronger in many applications proper surface preparation is essential to optimize bond strength for a long-term performance and durability thanks for watching please contact our technical

00:01:58 advisers for more information [Music]