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Surface Preparation Details.
To obtain optimum adhesion, the bonding surfaces must be clean, dry and well unified. Typical cleaning solvents are 3M™ VHB Cleaner, a mix of isopropyl alcohol and water or heptane.
Be sure to follow solvent manufacturer's directions for use and precautionary warnings when using solvents (Steps A & B)
Bond strength is dependent upon the degree of adhesive-to-surface contact developed. Firm application pressure helps better adhesive contact and thus improves bond strength (Steps C & D)
After application, the bond strength will increase as the adhesive flows into the surface. At room temperature approximately 50% of the ultimate strength will be achieved after 20 minutes, 90% after 24 hours and 100% after 72 hours. In some cases bond strength can be increased and ultimate bond strength can be achieved more quickly by exposure of the bond to elevated temperatures (eg. 70°C for 1 hour). This provides better adhesive wetout onto the substrates.
NB: Cannot be shipped outside the UK