Low tack microsphere glue

A low tack microsphere glue for application to a substrate to provide a reusable adhesive surface having microspheres surrounded by hydrated layers of surfactant which act as a steric barrier to particle coalescence prepared according to the process comprising the steps of:

• admixing, in approximate parts by weight, 2820 parts water;
• 54 parts of a 15% aqueous solution of polyacrylic acid having a molecular weight of 300,000 to 500,000 until said acid is dissolved;
• raising the pH of the solution to 7.0 by adding concentrated ammonium hydroxide thereto;
• adding 3.7 parts of a 70% active benzoyl peroxide catalyst and 1000 parts 2-ethylhexyl acrylate to the solution;
• holding said mixture under a vacuum of about 25 inches of mercury with stirring for about 5 minutes;
• adding, under a nitrogen purge, about 21.5 parts of a non-ionic surfactant selected from the group consisting of octylphenol ethoxylate or polyoxyethylene oleyl ether with agitation;
• heating the mixture to about 60.degree. C. for about 16 hours to form an aqueous compression;
• and
• passing the suspension through a 250 micron screen to remove the small amount of unsuitable larger particle agglomerates.