How To Deal With Ground Expansion Joints In Epoxy Flooring Construction

In epoxy flooring construction, we often encounter problems that exist on the ground, and things like open joints on the ground, dark joints, and corner expansion joints are almost always encountered in every construction, so it’s important that we know ways to deal with these problems. Here we are going to tell you the ways to solve these problems.

Ways to deal with dark joints in the ground

  1. Removal of sediment from expansion joints to a depth of expansion of at least 25 mm;
  2. fill the expansion joints with a resilient backing (usually foam polyethylene), which is usually half the width of the joints. 3;
  3. apply a primer and then fill the joints with epoxy mortar.
  4. on the expansion joints can be laid on the fiberglass reinforcement mesh to strengthen the adhesion of repair material to prevent cracking;
  5. apply epoxy paint on the expansion joints to complete the expansion joints treatment.

Method of dealing with open ground joints

  1. cut along the expansion seam on the finished painted surface;
  2. apply color separation paper to both sides of the seam;
  3. fill the seam with an elastic backing (usually polyethylene foam), which is usually half the width of the seam from the ground to the height of the backing;
  4. fill the seam with caulk and compact it;
  5. remove the separator immediately to complete the open seam treatment.How To Deal With Ground Expansion Joints In Epoxy Flooring Construction

How to treat corner expansion joints

The area where the wall and floor meet needs to be rounded to prevent the coating from leaking into the slit and to facilitate the cleaning and maintenance of the floor, especially in GMP plants. The steps for corner treatment are as follows.

  1. sand and clean the corners to ensure that they are dry and free of grease and loose material;
  2. seal with sealer primer;
  3. use polymer cement or epoxy mortar.