How to Crosslink Latex Paint

Cross-Link Acrylic Based Paints

• 1

  Clean the surface with a mild detergent. Crosslinking can absorb dirt and grease as molecules are still adjusting. Cleaning the surface prevents tainting the latex paint.

• 2

  Score the surface with sandpaper. Creating a slightly rough surface promotes adhesion of the paint.

• 3

  Read the paint ingredient list to make sure it has an acrylic binder in it. Other latex paints won't crosslink without a binding agent. Ask your paint department representative if you are unsure about your particular paint.

• 4

  Paint the latex paint with a brush or roller. Paint immediately begins to coalesce with water evaporating and acrylic resin concentrations increasing. Allow the paint to dry somewhat, it needs to still be tacky.

• 5

  Apply a second layer of paint. The two layers will coalesce together, creating one strong layer of paint rather than two. Allow the paint to dry. Read the paint label since all manufacturer's have different drying times.

• 6

  Keep the paint dry and free from contact until it is completely dry. If possible, refrain from walking on or wiping it with a damp cloth. It may take up to 60 days for the latex to fully cure.

Crosslink Non-Acrylic Based Paints

• 7

  Clean the surface area with a mild detergent to remove dirt, grease and grime. Dry and score the surface with sandpaper to create a better adhesive surface.

• 8

  Add an accelerator containing acrylic resin to the paint can. Read the directions to determine how much should be added. Accelerators are also called coupling agents and help cure the latex faster.

• 9

  Work in small sections, mixing only what you will use within 30 minutes. To increase the pot life of the paint in warmer temperatures, keep the paint in a bucket of ice.

• 10

  Paint two coats, allowing the first coat to dry before adding the second coat. Allow the second coat to dry completely and cure for up to 30 days. Read the paint and accelerator labels to determine the proper cure time.